|
HS Code |
318346 |
| Chemical Name | 2-Acetylthiophene |
| Cas Number | 88-15-3 |
| Molecular Formula | C6H6OS |
| Molecular Weight | 126.18 |
| Appearance | Colorless to pale yellow liquid |
| Melting Point | -7 °C |
| Boiling Point | 197-198 °C |
| Density | 1.129 g/cm3 at 20 °C |
| Flash Point | 81 °C (closed cup) |
| Solubility | Slightly soluble in water; soluble in organic solvents |
| Refractive Index | 1.552 at 20 °C |
| Purity | Typically ≥98% |
As an accredited 2-Acetylthiophene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | A clear glass bottle containing 100 mL of 2-Acetylthiophene, sealed with a red screw cap, labeled with hazard warnings. |
| Shipping | 2-Acetylthiophene is shipped in tightly sealed containers, protected from light and moisture. It is classified as a flammable liquid and should be transported according to relevant hazardous materials regulations. Appropriate labeling, safety data sheets, and protective outer packaging are required to ensure safe handling and to prevent leaks or accidental exposure during shipping. |
| Storage | 2-Acetylthiophene should be stored in a tightly closed container, in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizing agents. Protect the chemical from light and moisture. Store at room temperature and ensure the container is clearly labeled. Avoid prolonged exposure to air to prevent degradation. |
Applications of 2-Acetylthiophene in Industrial ManufacturingAs a direct manufacturer of 2-Acetylthiophene, we supply this aromatic intermediate to a limited set of well-established downstream sectors where its functional group chemistry and sulfur-containing backbone are indispensable. The following sections detail verified industrial application scenarios, technical parameters, integration into production processes, and resulting finished goods, based entirely on observed market use and regulatory constraints. 1. Pharmaceutical Intermediate for Thienopyridine SynthesisPharmaceutical manufacturers use 2-Acetylthiophene to build thienopyridine-type core structures, notably in the synthesis routes for antiplatelet drugs. The carbonyl-functionalized thiophene framework is introduced early in multi-step synthesis, where it undergoes cyclization and subsequent derivatization. Process engineers monitor impurity profiles and control addition rates to comply with specific monograph and cGMP requirements, with the final API requiring exhaustive traceability back to each intermediate. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
2. Agrochemical Synthesis—Building Block for FungicidesThe crop protection sector relies on 2-Acetylthiophene as a thiophene ring source when manufacturing certain systemic fungicides. Formulators introduce the material during the key condensation stages to construct sulfur-heterocycle scaffolds for target molecules. Each production lot needs robust analytical verification, as regulators require trace-level characterization and documentation covering all synthetic intermediates that enter the technical material and formulated product supply chain. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
3. Fragrance Ingredient Synthesis—Precursor for Sulfur-Containing Perfume ComponentsSpecialty fragrance and aroma chemical producers utilize 2-Acetylthiophene as a starting material in the industrial synthesis of sulfurous notes essential to tobacco, leather, and amber accords. Intermediate formation involves Friedel-Crafts acylation and subsequent reduction or etherification reactions. The sulfur profile and volatile impurities must stay within the guidelines set by IFRA as well as customer-mandated restrictions, since downstream formulations enter products with tight toxicological limits. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
4. Dye and Pigment Intermediate—Feedstock for Thiopheneazo Dye ManufacturingColorant and pigment synthesis engineers incorporate 2-Acetylthiophene into azo coupling reactions to create high-performance thiophene-based dyes. The reagent is introduced at the diazotization-coupling interface, where its aromatic structure supports high chroma and stability under industrial processing conditions. QC systems rely on batch-to-batch purity control, as pigment producers must document conformance to international colorant safety and purity standards to access regulated markets. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
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On our shop floor, 2-Acetylthiophene has been a mainstay for years. Its clear yellowish liquid form and pungent, yet distinct, odor immediately tell our team they’re working with something a little different from the more commonly handled solvents or neutral intermediates. With a molecular formula of C6H6OS and a precise boiling point, this compound carries a reputation grounded not just in physical specs, but in proven reliability when piped from reactor to drum.
We source starting materials scrupulously for every batch, using quality thiophene and acetic anhydride along with the relevant catalysts. The end result: a product that usually exceeds the technical grade demanded by pharmaceutical, flavor, fragrance, and electronic chemical sectors. Day to day, our lab technicians pay close attention to color, acidity, and residue. These are not just routine QC checkpoints—they often flag adjustments that let us keep impurity levels exceptionally low, often well below the 0.2% range that we see in imported or repacked materials.
Much of 2-Acetylthiophene’s value shows up precisely in applications where unseen impurities can make a mess of the downstream process. In the flavor and fragrance world, even trace sulfur compounds alter the note of a finished product. Companies using our acetylthiophene for making thiamine intermediates—or as a precursor for more complex heterocyclic pharmaceuticals—have repeatedly reported that tighter controls on water and non-volatile matter help them maintain yields they cannot achieve with mixed-source goods.
Over the years, we’ve heard plenty of stories from purchasing officers and process managers. A major electronics customer once shared how a contaminant-laden batch from a rival supplier cost them thousands in unplanned filter changes and rework. In contrast, shipments from our own line are often cited for their consistency; operators appreciate that they can uncork every drum and see the same color, get the same reaction rate, and produce the same batch results, run after run, month after month. No last-minute adjustments, no surprises.
People unfamiliar with sulfur-containing intermediates often guess that most thiophene derivatives behave in a similar fashion. Actually, 2-Acetylthiophene’s acetyl group changes its reactivity and the way it interacts with metal catalysts. For customers trying to synthesize more elaborate structures—anything from complicated crop protection molecules to new electronic materials—this step can be the deciding factor between success and expensive dead ends. Through our own pilot plant tests, we have repeatedly seen that trace differences in impurity profiles, chiral purity, and color indices matter far more with 2-Acetylthiophene than many of its near relatives, like 2-Methylthiophene or 3-Acetylthiophene.
One particular case stood out during a trouble-shooting visit at a fragrance manufacturing partner. Their process required a highly controlled thiophene note without ‘off’ sulfidic tails. After switching to our in-house 2-Acetylthiophene, the shift in the top note and reduction in downstream purification steps showed up in both their bottom line and in customer feedback. These are the moments when experience with the actual chemistry inside the vessel—compared to just trading documentation or generic COAs—pays off.
Keeping a production run stable starts with feedstock selection. Suppliers try to pitch a cut-price acetic anhydride or a mystery-grade thiophene now and then, but we have learned expensive lessons from attempting to cut corners. Graininess or a color shift during the acylation step is a tipoff—dodgy feedstock usually brings headaches during post-reaction distillation. Our operators take pride in steady, hands-on monitoring, not just relying on printouts from automated systems.
We maintain clear, direct relationships with utility staff about monitoring coolant flows and vacuum levels during critical steps. The acylation reaction tends to run hot, and anyone who has worked a night shift during a boiler glitch knows how vapor leaks or a slight overheat could set a whole sequence back by hours and spoil odor and color control. Engineers spend time in the plant, working side-by-side with QA techs, tweaking timings and distillation cut points based on real-world test results.
Plant managers emphasize regular cleaning cycles on reactors and lines handling 2-Acetylthiophene. Any residue build-up in transfer pumps or holding tanks quickly causes color and odor shifts. These shifts travel right down the supply chain and inevitably create trouble on the customer’s end. These details may sound mundane, but attention to them has cut the kind of batch-to-batch inconsistency that plagued us in our earlier years.
A lot of new staff join expecting a standard handling protocol, but sulfur and oxygenated compounds like 2-Acetylthiophene behave differently from classic hydrocarbons. Storage needs constant humidity checks; keep it too warm or expose open drums to air, and the compound oxidizes. The sulfur note intensifies, which has cost some plants regulatory headaches with off-gassing. For this reason, we reinforce strict sealing protocols, and filter air in our warehouse to avoid outside contaminants.
Transportation throws its own curveballs, especially during hot summer months. Bulk shipments in tank trucks need nitrogen blanketing and temperature-controlled runs, not simply because regulations say so, but because we have seen product change after hours sitting under the sun on a siding. Customer feedback from shipments with tight seals and rapid delivery has consistently been positive. It doesn’t just shave hours off their dock-to-reactor time; it prevents quality dips and waste, which everyone feels in their own margins.
Long-term buyers tell us purity numbers only explain part of the story. The ability to receive lots that behave the same chemically, batch after batch, becomes critical where complex, multi-step synthesis matters. Several firms producing pharmaceutical intermediates have shared that by using a consistent source, they reduce both production time and waste solvent in their purification stages, often shaving an entire day’s worth of process time per week off their line compared to switching between batches from multiple vendors.
One electronics manufacturer described the challenges with unreliable imports: changes in solvent compatibility, problems with deposit formation, and stalled pilot runs. With our 2-Acetylthiophene, the process engineers saw a reduction in maintenance actions and avoided production halts. This feedback reshapes how we coordinate our QA team and lets us keep production parameters fine-tuned.
Much of the marketing material out there glosses over the small, operationally significant details that preoccupy a working plant. When you run the reactors, fill the drums, and field customer tech calls, the practical side of chemical manufacturing comes to the forefront. Sure, purity specifications and safety data stand as required checkpoints, but quality truly becomes evident in the way shipments stand up in the real production world. Is the color consistent across a tanker? Have the fill weights held steady enough so customers never need to panic about compliance or lost volume? When orders spike up, does the supplier’s process hold together or do corners get cut?
Employees at every level in our operation are constantly made aware of the domino effect a single off-spec drum produces for a customer with a continuous line. From engineers monitoring process analytics to workers tightening cargo seals before trucks head out, there’s a shared responsibility to prevent those issues. That culture only comes from being hands-on, making the product day in, day out, seeing the way a detail missed at one step translates into hours of customer hassle.
We are regularly approached for non-standard grades or novel application trials. The research wing at an agrochemical startup recently requested a version with even lower acid value, aiming for a new fungicide intermediate. Side-by-side trials in their lab returned yield numbers several percentage points above their control using standard commercial material. While tweaking production conditions costs time and, sometimes, a night’s overtime for the distillation crew, we rarely turn down these challenges. Each special request becomes a chance to refine the process further for everyone’s benefit.
There’s a growing push for sustainable sourcing and greener chemistry, and we are under increasing pressure to develop routes with less waste and simpler purification steps. Our staff are exploring ways to integrate recycled solvents and consider catalyst recovery from spent reformers. In a few pilot runs, by switching to a more efficient condensation catalyst, we cut total energy use noticeably. Discoveries like this come from the combined effort of plant, maintenance, and tech development teams collaborating across shifts—not just by following manuals or out-of-date SOPs.
Many of our long-time buyers originally came aboard after running into trouble with short-term traders or importers who focus solely on price. They remember well the headaches from unreliable arrivals, undocumented modifications, or unexplained color changes. It took years of phased plant investment and a real dialogue with our key customers to earn their trust. Our approach now relies less on conventional marketing and more on direct consultation—translating feedback on odd odors, reactivity complaints, or inconsistent packaging into actionable checks in production and logistics.
Every year brings new regulatory hurdles both at home and in export markets. To stay out in front, our regulatory affairs and technical support teams monitor changes on safety classifications, transport codes, and residue limits. In the last round of European cosmetic compliance updates, a few small labeling changes prevented customer delays at port. The reward is straightforward: buyers with reduced downtime and fewer questioned shipments are buyers who keep coming back.
Small, targeted innovations can impact every stage from raw materials to outbound shipment. Recently, line operators tested a new digital temp monitor fitted to storage tanks, aimed at catching the slight uptick in temperature that precedes decomposition in stored 2-Acetylthiophene. The handheld sensors pay for themselves with a single avoided batch of oxidized stock. Other improvements include better drum lining that stops trace corrosion of storage vessels, reducing metallic content and sidestepping product recalls.
Regular process audits expose areas for improvement in solvent use, heat exchange, and even batching sequences that operators sometimes feel best about shifting based on daily run data, not just long-term engineering models. More than one time, visiting customers noticed that these workflow tweaks stem directly from recognizing the minor details only those doing the work day-in-day-out can see. In the end, it’s the rhythm of these hundreds of small plant-level optimizations that turn commodity intermediates into real tools for applied chemistry down the supply chain.
We see 2-Acetylthiophene as far more than a line item or a drum on a loading dock. Every batch carries the weight of not only technical data and regulatory requirements, but thousands of hours of production and real-world feedback. We measure success not just in tons shipped, but in the day-to-day trust forged with customers who depend on steady, predictable feedstocks to run their own lines profitably.
The journey of this compound through our plant is a story of attention, adaptation, and collaboration: every missed feature, improvement, or complaint becomes data to inform the next cycle. Over years of challenges and adaptation to customer needs—new product grades, tighter controls, cleaner storage, honest troubleshooting—we’ve learned that no chemical is just a specification; it’s a relationship between producer and user, shaped in the daily routines of a working plant. From the first tank fill to the final shipment release, 2-Acetylthiophene offers a combination of purity, predictability, and support that stands out in the world of organosulfur intermediates.