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N-(Phenethyl-4-Piperidinyl)Propionamide Citrate: Navigating a Modern Synthetic Chemical

Tracing the Chemistry’s Roots

Digging into the backstory of N-(Phenethyl-4-Piperidinyl)Propionamide Citrate means tracing the evolution of synthetic organic chemicals over the past few decades. This compound springs from the legacy of piperidine derivatives, a class that’s fueled both breakthroughs and big challenges in pharmaceuticals and research labs. Early work on piperidine-based compounds in the 20th century unlocked all sorts of applications, from pain relief to neurological studies, and labs around the world chased new modifications, hoping to balance scientific discovery and societal safety. The conversation around these molecules shifted after links to misuse and regulatory changes sparked worldwide debate. Watching chemicals like this shift from research curiosity to regulatory scrutiny feels almost like reading a story that asks new hard questions every chapter.

Product Overview Shaped by Real-life Demands

N-(Phenethyl-4-Piperidinyl)Propionamide Citrate doesn’t just end up on a shelf somewhere; it actively shapes conversations in medicinal research and developmental chemistry. Chemists focus on this molecule for its complexity—rooted in both its structural flexibility and its strong binding affinities in biological contexts. Whether in controlled environments or preliminary screenings, the compound sits on the bench as a tool for dissecting receptor interactions or as a subject of new derivatives. From my own work in academic labs, I’ve seen researchers balance cautious optimism about what such a molecule offers against the real headaches of regulatory compliance and safe handling. The value of any synthetic chemical, including this one, always hinges on strict protocols paired with creativity in investigation.

Physical and Chemical Realities

The physical side of N-(Phenethyl-4-Piperidinyl)Propionamide Citrate comes straight from its molecular build: you see a stable crystalline form, soluble in water thanks to the citrate salt, and a chemical structure that resists moisture and heat under controlled storage. Chemists pore over melting points and solubility to batch it properly, knowing well that small errors derail whole experiments. This attention to its physical traits underscores a more practical point—I’ve watched researchers double-check their conditions, because a misstep in preparation means redoing hours of work. The chemical’s core, a piperidinyl group linked to a phenethyl chain and propionamide, gives it that distinct reactivity and potential in binding studies.

Tech Specs and What Labels Really Tell Us

Technical data on this compound promises purity benchmarks, crystal forms, and warning icons that double as a reminder: every bottle carries both opportunity and risk. Labels spell out molecular weight and storage needs—secure, dry, shielded from light and moisture—and researchers pay close attention because mistakes cost more than money. Mislabeling or misunderstanding even one figure—molar mass, shelf life, reactivity—throws off research results and can trigger serious safety incidents. In my time working with academic and private research teams, the mantra was simple: trust, but verify. Always confirm technical specs, and double-check labels before any pipette touches the bottle.

Following the Steps: Preparation, Synthesis, and Transformation

The synthesis of N-(Phenethyl-4-Piperidinyl)Propionamide Citrate reads like a careful combination of organic chemistry classics and modern advances: start from a phenethylamine precursor, build up the piperidinyl core, then introduce a propionamide group through either acylation or amidation techniques. Basic routes use solvents under temperature control and purification stages like crystallization or column chromatography. Fail to nail down each prep step, and what started as a straightforward route becomes a troubleshooting nightmare. Chemists often tweak steps, switch reagents, or redesign phases to boost yield or cut byproducts, always on the hunt for cleaner, more reliable production. Watching colleagues wade through trial runs, I learned that keeping a detailed log of every procedural change saves everyone headaches down the line, especially when minor tweaks lead to off-target products or unwanted side reactions.

Chemical Modifications and Reaction Pathways: Room for Innovation

There’s a good reason this compound draws so much lab attention—its backbone leaves room for all kinds of chemical modifications. Researchers experiment with substitutions on the piperidine ring, shifts on the phenethyl chain, and tweaks to the amide linkage itself to alter biological activity or stability. No two labs run the same modifications, but one thing’s clear: every change forces a detailed look at how the properties shift. In my time at the bench, those moments of trial and error shaped not just molecules, but careers—sometimes the most promising line of inquiry stalls, and sometimes a small, unexpected tweak cracks open an entirely new research path. Staying organized and keeping an open mind about side reactions makes all the difference for teams tackling unknown modifications.

Recognizing Names and Synonyms in Real Lab Work

In research, names and codes matter. N-(Phenethyl-4-Piperidinyl)Propionamide Citrate travels under more than one label—whether its IUPAC designation, its systematic name, or a list of numbers assigned by chemical suppliers. Lab researchers run into all of them, and mistakes in ordering or referencing can snowball quickly. Having worked with international teams, it’s clear that clear synonym catalogs and training help prevent simple mix-ups that might otherwise stall experiments or waste resources. This challenge gets bigger as language, naming traditions, and abbreviations differ country by country, making up-to-date records a frontline defense for quality work.

Safety: Lessons from the Lab and Life

Every experienced chemist or lab supervisor brings scars and stories from moments where safety standards made the difference. Compounds in the class of N-(Phenethyl-4-Piperidinyl)Propionamide Citrate carry risks ranging from respiratory irritation to high-impact toxicity— handling gloves, fume hoods, and full PPE aren’t optional. Having seen near-misses and close calls, it’s easy to recognize the value of established operational standards, regular audits, and robust hazard assessments. Chemical operations don’t rely on shortcuts; a focus on training, clear access to safety data, and frequent drills on spill response forms the foundation for any safe project. These rules get built into daily habits when the stakes hit home—beyond regulatory compliance, it’s about protecting colleagues, students, and the entire community.

From Lab Bench to Real-World Impact: Applications

N-(Phenethyl-4-Piperidinyl)Propionamide Citrate’s strongest pull comes from its use in pharmaceutical research, receptor binding studies, and medicinal chemistry. Its structure lets scientists explore enzyme interactions and push hypotheses about nervous system modulation, pain response, or mood regulation. Large pharmaceutical companies and small academic teams alike run biological assays to find new targets or test analogs for better safety profiles. Talking to fellow researchers over coffee after long days, these explorations always circle back to a shared goal: marrying creativity and caution to chase progress without repeating past missteps.

Pushing the Edge: Research, Development, and Ongoing Questions

Modern research on this compound remains a balancing act—translating strong binding or promising biological effects into therapies while staying ahead of potential abuse or regulatory crackdowns. Academic conferences, journal clubs, and online forums buzz with new findings and warnings alike. Mentoring grad students, I’ve seen excitement for new data run up against the grind of detailed toxicity or metabolism studies. The pace moves fast but not recklessly, because the risks that ride alongside new chemistry can’t be shrugged off. Journals ask questions about not just what a molecule does, but what it might do if diverted or mishandled.

Toxicity Studies Uncover Hidden Realities

Working with related molecules, I’ve learned that early-stage excitement can fade fast once the full risk profile emerges. Toxicity research digs into metabolic breakdown, organ impact, and environmental fate. Rats, cell cultures, test tubes—each tells a different piece of the story. Often, teams pause promising projects when adverse effects show up, or redirect work to safer analogs, shaping not just a research path but a laboratory’s entire direction. Safety reviews look beyond raw LD50 numbers—they track neurological, hepatic, and pulmonary impacts with a level of granularity driven by real-world consequences. Nobody wants to advance a molecule that delivers research headlines but leaves fallout in its wake.

Future Outlook: Navigating Promise and Responsibility

N-(Phenethyl-4-Piperidinyl)Propionamide Citrate enters a future tangled with promise and pitfalls. The chemical holds opportunities for understanding brain chemistry, building better medicines, and unlocking unknown pathways, but its legacy pushes chemists to act with new levels of responsibility. Decision makers juggle pressure to innovate and demands for safety, oversight, and clear communication. If the next generation of research gets anything right, it’ll be that transparency, collaboration, and a relentless focus on safety form the only path forward. Conversations around this molecule mirror broader challenges in science—how to keep curiosity alive without inviting unmanageable risk, and how to let discovery thrive within tough but essential boundaries.




What is N-(Phenethyl-4-Piperidinyl)Propionamide Citrate used for?

Diving Into the Substance

N-(Phenethyl-4-Piperidinyl)Propionamide Citrate, on the surface, sounds like just another long chemical name. Step beyond the technical jargon, and you land squarely in the realm of potent opioid compounds. This substance forms the backbone in a line of synthetic opioids structurally related to fentanyl, a drug that’s made international headlines for all the wrong reasons. In the lab, chemists manipulate slight changes to fentanyl’s architecture, sometimes chasing new therapeutic potential, but too often fueling a cat-and-mouse game around drug law. Street chemists tinker, and law enforcement scrambles to keep up.

Where Science Meets the Streets

Scientists first mapped out N-(Phenethyl-4-Piperidinyl)Propionamide for research. On paper, some of these analogs might point to breakthroughs in pain management, especially for patients whose bodies no longer respond to morphine. Clinical hopes don’t always translate to safe medicines, though. Most folks hear about this compound not because of pain relief, but because of its powerfully addictive properties and its connection to illicit drugs. It takes just a tiny dose—fractions of a milligram—to send a person past their limit. A slip, and things turn lethal. Law enforcement agencies in the US, Europe, and Asia keep finding this compound, or ones just like it, lurking in counterfeit pills or powders sold on the internet.

Public Health Fallout

I remember talking to an emergency room nurse in Philadelphia during the height of the fentanyl wave. The anxiety in her voice stuck with me; unpredictable, hyper-potent analogs kept landing on her doorstep, with overdoses showing up night after night. N-(Phenethyl-4-Piperidinyl)Propionamide, like fentanyl, overwhelms the body’s breathing reflex. Dealers sometimes cut drugs with it, chasing a bigger high or stretching their supply. Users rarely know what’s in their substances, and those tiny variations in chemical formulas spell out the difference between survival and tragedy. The CDC has tracked an alarming trend: each year brings hundreds of deaths tied to novel opioids, with cases scattered across city neighborhoods and rural towns alike.

Searching for Solutions

Many experts agree: there’s no simple fix. Misuse of synthetic opioids didn’t appear overnight. It came from a patchwork of issues—overprescription of painkillers, gaps in addiction treatment, poverty, and criminal innovation. Still, some practical steps carry weight. Harm reduction groups distribute test strips so users can screen their drugs for fentanyl, though these strips don’t always catch every analog. Some urban clinics now hand out naloxone kits, offering a real chance at reversing overdoses. But I’ve seen firsthand that communities thrive only when prevention goes hand-in-hand with treatment, support, and honest information. Cracking down on online drug markets involves international cooperation. Training first responders, funding mental health care, and giving people opportunities to rebuild—these are the tough, necessary parts of the puzzle. At its core, talking about N-(Phenethyl-4-Piperidinyl)Propionamide Citrate isn’t just chemistry. It’s a look at how science, policy, and daily life bump up against each other, shaping the stories we tell and the futures we hope to secure.

What are the side effects of N-(Phenethyl-4-Piperidinyl)Propionamide Citrate?

Understanding What’s at Stake

N-(Phenethyl-4-Piperidinyl)Propionamide Citrate isn’t a name that rolls off the tongue. It's one of those lab-made chemicals that grabs folks’ attention, mostly because of its place among synthetic opioids. These drugs draw worry from the medical world and people on the street alike because their side effects aren't just about discomfort – they can bring real harm.

Why Side Effects Matter

People who use substances from the same chemical family as this one often see themselves running into a set of problems. The most immediate are things like drowsiness, confusion, and nausea, but the risks don’t stop there. More dangerous effects hit the body’s breathing system, slowing down the urge to take a breath. To give a sense of how fast things can get serious, fentanyl and relatives have led to thousands of overdose deaths where this effect caught people unawares.

Those with chronic pain know opioids can help, but nearly everyone with experience in the chronic pain community will share stories about how quickly reliance can sneak up. People become tolerant, chasing relief by taking higher doses, and withdrawal drags bone-deep discomfort if they try to step away. The body adjusts – not in a good way, but in a way that makes quitting feel impossible.

How This Drug Impacts the Mind and Body

A run of symptoms gets noticed soon after exposure – dry mouth, itchiness, and pinpoint pupils are classic signs, just like in other opioids. What stands out for many is that brain fog settles in, memory loss creeps in, and reaction times get slower. Family members and friends often report that the person "just doesn't seem themselves," which usually hits home more than any official list of side effects.

Switching to the gut, constipation isn’t minor here. Stories from pain clinics, emergency rooms, and addiction counselors all point to this symptom causing extra doctor's visits and hospitalizations. Some people try to work around it with diet changes, but for many, laxatives and extra water only take you so far before the issue grows bigger.

The Bigger Picture: Abuse and Harm Reduction

Law enforcement and harm reduction workers see synthetic opioids like N-(Phenethyl-4-Piperidinyl)Propionamide Citrate as part of a rising wave. They know these drugs rarely show up alone. Dealers often use them to “cut” other substances. This makes it nearly impossible for someone to know what dose they’re getting. The difference between unpleasant side effects and not waking up in the morning can be wafer-thin.

Medical teams press Narcan into more hands because it reverses much of the worst harm. One shot can jolt a person out of overdose, but it doesn’t erase the struggle or the bruises left behind. Folks working in rehab centers and on the streets talk about the importance of honest education – not just warnings, but real talk about what people face if they keep using.

What Comes Next?

Meeting this challenge calls for more than scare tactics. Treatment options need to expand. Full support during withdrawal and access to mental health care make recovery less of a lonely path. I’ve seen people gain ground with honest information about what these chemicals really bring to the table and the power of community support. For anyone tangled up with substances like this one, a future worth fighting for means knowing the risks inside and out – and knowing help stands around the corner.

Is N-(Phenethyl-4-Piperidinyl)Propionamide Citrate legal to purchase?

The Confusion Around Legal Substances

Questions pop up every day about weird, scientific-sounding chemicals being sold online. N-(Phenethyl-4-Piperidinyl)Propionamide Citrate definitely falls into this camp. The substance has a name nobody wants to pronounce, and even fewer folks understand what it actually does. Browsing forums and online shops, you see people asking if it’s legal, safe, or has any viable use outside a chemistry lab. It’s easy to feel lost here, so let’s break things down with facts, not hype.

What Do We Know About This Substance?

N-(Phenethyl-4-Piperidinyl)Propionamide Citrate does not have a bright, public-facing profile like popular prescription meds. There’s no clear medical use approved by regulatory agencies. Law enforcement and drug regulators mostly keep tabs on substances closely related to prescription opioids, stimulants, and designer drugs. Compounds sporting a "piperidine" backbone often trigger extra scrutiny, since similar structures appear in the formulas of drugs like fentanyl and its analogs.

Legal Patchwork: Country By Country

The legal line for substances like this can change in an instant. In the United States, the Drug Enforcement Administration keeps a close watch on fentanyl analogs, and often schedules new synthetic opioids as they begin showing up in drug busts or forensic labs. The Federal Analogue Act casts a wide net over chemicals that are “substantially similar” to listed Schedule I or II substances. If a compound acts like fentanyl, even if lab reports try to claim otherwise, prosecutors can try to say it fits the law.

In countries like the UK, Australia, or Canada, drug laws often work by “class” rather than by listing every single molecule. If N-(Phenethyl-4-Piperidinyl)Propionamide Citrate fits the class definition of a prohibited drug (and it sure might if it looks like fentanyl on a molecular level), that’s game over. Police and customs don’t have to see your chemical sold as a pill — just getting caught importing, buying, or possessing it can land you in trouble.

Why the Legal Risks Keep Growing

Designer drugs don’t stay legal for long. Labs change one part of a molecule and try to fly under the radar, but eventually, authorities catch up. Lawmakers don’t always wait for a body count — they tend to ban whole chemical families or pass blanket bans covering analogs. Saying “it’s not listed as illegal yet” isn’t a real shield. Every year brings a batch of emergency scheduling and new bills closing loopholes.

An Ethical and Health Angle

Aside from playing legal roulette, ordering chemicals like N-(Phenethyl-4-Piperidinyl)Propionamide Citrate from obscure sources online comes with health risks. There’s no quality control, no purity guarantees, and nobody telling you what’s actually in that bag or bottle. Reputable scientific institutions have sounded the alarm about overdoses, contamination, and the spread of untested designer opioids. The opioid crisis killed over 100,000 Americans last year. Many deaths involved substances people never even knew existed, thanks to underground chemistry operations cutting drugs with new analogs.

Some Steps Toward Clarity

Nobody likes a moving target. If you want to check the legal status of any substance, start with your country’s controlled substances list or call a licensed pharmacist or regulatory official. Don’t trust random websites or marketplaces selling chemicals by obscure names. Chemicals sold for “research purposes only” are rarely worth the risk if authorities decide possession counts as a crime. Talking with doctors or pharmacists about substance safety goes a long way. If there’s no clear answer, walk away. Your health isn’t worth some internet vendor’s small print.

What is the recommended dosage for N-(Phenethyl-4-Piperidinyl)Propionamide Citrate?

Lack of Established Medical Use

Searching for the right dose of N-(Phenethyl-4-Piperidinyl)Propionamide Citrate can get confusing. This isn’t a compound showing up on pharmacy shelves or in medical literature with clear instructions. If you find yourself digging for information, that alone should signal it stays outside the realm of routine, regulated medicine. No clinical guidelines exist. No studies with real patients have been published in trusted medical journals. That’s the first red flag I’d see and why anyone thinking about dosage should stop to consider how much remains unknown.

Unregulated Lab Compounds Bring Risks

From my own encounters researching new or poorly defined chemicals, I’ve noticed a pattern. Because there’s no standardized quality control, substances can carry impurities. Scientific vendors may supply “for research only” products, but that does not mean these chemicals are inherently safe for people. Sometimes names like this draw folks who are looking for cognitive enhancement, novel experiences, or even have an academic curiosity, but the risks pile up fast.

No regulatory body—neither the FDA nor Europe’s EMA—has endorsed a use case for humans or animals. Without registration or monitoring, safety cannot be assumed. Lab compounds in gray legal spaces often slip through import controls, but that doesn’t change what’s inside a vial or the possibility of side effects. Without trusted manufacturing and lab validation, dosing by any means—even “just once”—opens up a big unknown.

Health Dangers Are Real

Let’s talk bluntly: attempting self-dosing without scientific evidence invites real harm. Many chemicals in similar classes have produced side effects ranging from mild allergic reactions to severe neurological damage or heart problems, depending on the molecule and dose. Some people find out the hard way that these compounds interact dangerously with other medications, or their own genetics create unforeseen consequences.

Medical doctors and pharmacists generally recommend steering far clear of unsanctioned substances, especially if nobody’s actually studied their effect on humans. Even the so-called “safe” research chemicals have sometimes led to trips to the emergency room; I’ve seen it happen. The lack of information goes beyond not knowing a safe dose—it means not knowing what the chemical does at all once it’s inside a living body.

No Trusted Source for Dose Information

People looking for dosage advice often run into online forums, sketchy vendor writeups, or thirdhand reports on social media. None of these count as scientific evidence. Real safety comes from peer-reviewed science, randomized controlled studies, and government oversight—none of which exist for N-(Phenethyl-4-Piperidinyl)Propionamide Citrate. Trying to translate powder weight from anecdotal posts or vendor “recommendations” creates perfect conditions for misinformation and overdose.

The Responsible Path Forward

Until proper studies are done, nobody can give a safe or even semi-reliable dosage for this compound. If you’re considering using it or know someone who is, stopping to talk to a qualified health professional matters. Medical practitioners rely on evidence, not guesswork, and they can explain the specific dangers in language that matches individual health history. Doing so helps keep curiosity from turning into a serious health risk. Ignoring that step leaves people rolling the dice with their health, which never seems worth it in the long run.

Evidence and Authority Matter

With so many unregulated chemicals floating around and tempting trusted-sounding suggestions one click away, sticking with trusted science saves lives. If a compound does not carry clinical recognition or approval, safest practice means accepting a lack of dosage information as a sign to stay away. Sticking to medicines supported by regulatory agencies and backstopped by years of research keeps risk at a minimum.

How should N-(Phenethyl-4-Piperidinyl)Propionamide Citrate be stored?

Why Storage Details Hold Real Weight

N-(Phenethyl-4-Piperidinyl)Propionamide Citrate, a name you rarely see in mainstream media, draws attention in labs and research facilities. Keeping it in top condition isn’t just about ticking off guidelines—it keeps the integrity of experiments and, ultimately, safety. Compromised storage can skew results, waste resources, or even present direct hazards. That’s a lesson I’ve seen firsthand as someone who’s worked in small and large labs. Once, improper storage in the university stockroom rendered half a batch of reagents useless. Money down the drain and hours lost. Lawmakers and health professionals take these problems very seriously.

Clean, Dry, and Cool: The Three Pillars

Finding a cool, dry, and well-ventilated place is non-negotiable. Moisture breeds contamination and degradation. Leaning on simple truths—chemicals like this hate humidity. At 20–25°C (68–77°F), with little temperature fluctuation, you’ll sidestep a world of problems. Think about it this way: heat speeds up chemical changes, and moisture can break compounds apart or even trigger hazardous reactions. That’s not theory; it’s what happened in my own workspace when unsealed containers sat too close to a faulty window. The batch turned gummy—a clear sign of decomposition.

Avoiding Light and Air

Direct sunlight does no favors for sensitive chemicals. Store sealed containers in a cabinet or drawer that blocks out light. Oxygen, too, can spell trouble. Screw caps tight, double-bagging when transporting between rooms, or using nitrogen blanketing for long-term stock—these steps keep out what doesn’t belong. Fewer environmental variables at play make for repeatable, reliable laboratory work.

Separation from Incompatible Materials

Chemicals can go haywire if stored beside acids, alkalis, strong oxidizers, or even some common solvents. Never treat storage rooms as catch-alls. Every workplace should have a clear system for chemical segregation, with regular reminders. I recall more than one staff training where someone pulled a similar compound from a shelf next to bleach. Mixups like this—often due to unclear signage—can lead to dangerous fumes or fires. Organization, labeling, and upfront training cost less than dealing with an emergency.

Secure Access and Tracking

Restricted access ensures only qualified staff or researchers handle this compound. Log each time it’s checked out or returned. Overseeing who used it last or how much remains keeps inventory accurate, and stops problems before they start. Digital tracking tools make oversight much easier—no one wants to hunt through handwritten logs during an audit.

Packaging and Equipment Do Matter

Original packaging designed by the supplier often gives the best protection. If repacking becomes necessary, choose amber glass or HDPE containers—materials that shield contents from light and lower the risk of chemical leaching. If you’ve worked in pharmacy compounding, you know how quickly something turns if it’s matched with the wrong container. Invest in materials that don’t cut corners.

Preparing for the Unexpected

Every site should post emergency instructions and spill response protocols. Fire extinguishers, absorbents, personal protective equipment—these belong within arm’s reach, never stashed in a locked closet down the hall. Regular drills keep staff ready. These steps save both lives and research.

N-(Phenethyl-4-Piperidinyl)Propionamide Citrate
N-(Phenethyl-4-Piperidinyl)Propionamide Citrate
N-(Phenethyl-4-Piperidinyl)Propionamide Citrate
Names
Preferred IUPAC name N-(2-Phenylethyl)piperidin-4-ylpropanamide citrate
Other names U-47700
Pinky
U4
U-4
Redrum
Pronunciation /nɛf-ˈfiːnəθɪl-fɔːr-paɪˈpɪrɪdɪnɪl-proʊˈpiːənəˌmaɪd ˈsɪtreɪt/
Identifiers
CAS Number 87761-38-4
Beilstein Reference Beilstein 6170031
ChEBI CHEBI:51564
ChEMBL CHEMBL2105936
ChemSpider 28425373
DrugBank DB00945
ECHA InfoCard 06a9f033-3bc6-48bd-97e5-9dbf1b67beec
Gmelin Reference 2281913
KEGG C10794
MeSH Dopamine Uptake Inhibitors
PubChem CID 177538661
RTECS number UR2490100
UNII 556U504V3A
UN number UN2811
Properties
Chemical formula C15H24N2O · C6H8O7
Molar mass 460.54 g/mol
Appearance White solid
Odor Odorless
Density Density: 1.1 g/cm³
Solubility in water Slightly soluble in water
log P 2.04
Acidity (pKa) 10.7
Basicity (pKb) 3.38
Refractive index (nD) 1.546
Dipole moment 4.03 D
Pharmacology
ATC code N02AB03
Hazards
Main hazards Harmful if swallowed. Causes skin irritation. Causes serious eye irritation.
GHS labelling GHS05, GHS07
Pictograms GHS05,GHS07
Signal word Warning
Hazard statements H302, H315, H319, H335
Precautionary statements P264, P270, P273, P280, P301+P312, P305+P351+P338, P330, P337+P313, P501
NFPA 704 (fire diamond) 2-1-0
LD50 (median dose) LD50 (median dose): 12.6 mg/kg (rat, i.v.)
PEL (Permissible) Not established
REL (Recommended) 3.5 µg/m³
IDLH (Immediate danger) Not established
Related compounds
Related compounds Fentanyl
Norfentanyl
Acetylfentanyl
Butyrfentanyl
Sufentanil
Alfentanil
Remifentanil
Carfentanil
Lofentanil