|
HS Code |
612522 |
| Cas Number | 82104-74-3 |
| Molecular Formula | C9H5NO |
| Molecular Weight | 143.14 |
| Iupac Name | 5-cyano-1-benzofuran-1(3H)-one |
| Appearance | White to off-white solid |
| Melting Point | 153-155°C |
| Boiling Point | Decomposes before boiling |
| Solubility | Slightly soluble in water, soluble in organic solvents |
| Purity | Typically >98% |
| Storage Condition | Store in a cool, dry place, protected from light |
As an accredited 5-Cyanophthalide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 5-Cyanophthalide, 25g, is supplied in a sealed amber glass bottle with a tamper-evident cap and detailed hazard labeling. |
| Shipping | 5-Cyanophthalide is shipped in tightly sealed containers, protected from light, moisture, and incompatible substances. It should be handled with appropriate safety precautions and labeled according to regulatory requirements. Shipment is typically via ground or air freight, following all chemical transport regulations to ensure safety and compliance during transit. |
| Storage | 5-Cyanophthalide should be stored in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizing agents. Keep the container tightly closed and protected from moisture and direct sunlight. Store it in a designated chemical storage cabinet, and ensure proper labeling to prevent accidental misuse or exposure. |
Applications of 5-Cyanophthalide in Industrial Manufacturing5-Cyanophthalide serves as a specialized chemical intermediate across several complex manufacturing sectors. As an original producer, we support customers in pigment, dye, pharmaceutical API, and optical brightener industries with consistent batch control, documentation, and logistics traceability for every shipment. Below, find real-world downstream applications in traceable segments with clear details on compliance, dosage, process integration, and final manufactured product types. 1. Organic Pigment Synthesis (Phthalocyanine Pigments)Phthalocyanine pigment producers use this ingredient primarily as a key building block for copper phthalocyanine and derivative pigments. Our high-purity material enables accurate ring-closure reactions and chlorination steps in pigment synthesis. Quality control involves strict impurity limits to avoid coloration off-shades in paints, plastics, and inks. Continuous flow and batch reactors both demand consistent input purity. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
2. Dye Intermediate Manufacturing (Anthraquinone Dyes)5-Cyanophthalide acts as a structural intermediate in anthraquinone dye synthesis, especially for disperse and acid dye production. Dyestuff manufacturers require tight control over cyanide impurity levels to ensure environmental compliance and product stability. Its nitrile group allows selective transformation during Friedel-Crafts reactions and subsequent functionalization for textile dye applications. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
3. Pharmaceutical API Synthesis (Antihypertensive and Analgesic Precursors)Within pharmaceutical manufacturing, this compound serves as a regulated precursor for specialized APIs requiring phthalide scaffolds. Laboratories focus on low heavy metal content and pharma-grade traceability documentation. It enters selective ring-opening and formylation chemistries, often in GMP-compliant facilities, with validated cleaning and process verification steps before final downstream conversions. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
4. Optical Brightener Manufacturing (Styrene-Pyrazoline Derivatives)The chemical acts as a core intermediate in the production of select optical brighteners, such as those based on styrene-pyrazoline analogs. Producers in this segment prioritize extremely low color indices and batch reproducibility. The nitrile function on the phthalide ring assists in controlled cyclization reactions, leading to high-purity fluorescent agents for plastics and laundry detergent applications. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
|
Competitive 5-Cyanophthalide prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.
We will respond to you as soon as possible.
Tel: +8615371019725
Email: admin@sinochem-nanjing.com
Flexible payment, competitive price, premium service - Inquire now!
5-Cyanophthalide has featured in our daily operation for years. Many downstream users value this compound for its consistent results and reliability across colorant and pharmaceutical intermediate manufacturing, where process precision makes all the difference. Looking back over a decade of production, we understand the balance between high purity and practical yield that end-users expect. Over countless synthesis batches, we have refined the process through rigorous crystallization steps, deliberate drying conditions, and careful control of impurity levels.
Every reactor run offers small lessons: how phthalic anhydride raw material batches influence CN-content, or which flux rate maintains cyanation reactions within target temperatures. Our workforce brings an instinct for troubleshooting to every shift. We rely on robust analytical support, regularly drawing on HPLC and GC-MS instrumentation to monitor purity. End users rely on us to keep bottom-line specs such as 99% purity—not just in certificates, but as consistent batch reality. Post-synthesis, we favor vacuum drying and gentle handling to avoid dust formation or troublesome static charges.
For 5-Cyanophthalide, the white crystalline solid may sometimes appear faintly off-white, depending on subtle variations in the starting isomer ratio. This does not affect core chemical composition. Water content remains low, typically under 0.2%. Free acid and insoluble matter are monitored batch by batch—an ongoing effort, not a checklist. Melting point spectrums reflect close attention to detail at every stage of cracking and crystallization. Those subtle product cues—particle flow, solubility in reaction solvents, ability to filter cleanly—tell the story of every process variable we’ve adjusted over time.
Most real-life complaints about 5-Cyanophthalide focus on filtration rates or slightly colored by-products. Over time, customers taught us the value of “hands-on” support: open lines for technical dialogue and sample sharing. We keep extra glassware in our lab for quick solvent-swapping experiments. Some production lots respond better to multi-step washing; others demand subtle tweaks to cooling curves. By leaving space for feedback and careful logging, we avoid surprises and help partners meet their own downstream quality targets.
Moisture pick-up remains a constant operational challenge, especially during humid months. While warehouse upgrades have helped, nothing replaces careful drum sealing and attentive rotation. Small manufacturing scale-ups sometimes introduce batch memory effects; we studiously monitor first-barrel samples to avoid outlier properties. Scale-up is not about pumping raw material faster—it’s real craftsmanship, honed by shared feedback across production, quality control, and logistics.
On the floor, pigment makers and pharmaceutical processors focus less on purity “on paper” and more on how 5-Cyanophthalide integrates into next-stage synthesis. Some stare at color transitions or measure filtration pressure drops. Others tune solvent selection by subtle pH shifts tracked in our technical bulletins. Across the feedback, granular control of side-reaction products stands out as the most appreciated difference between experienced and “off the rack” material.
Storage conditions and shelf life are not just about packaging. Our technical support routinely answers shelf-life questions from buyers in variable climates. Clear labeling states product lot, manufacturing date, and handling recommendations, but nothing replaces ongoing dialogue. With some users handling grams and others metric tons, applications control everything from flavor chemical intermediates to advanced dye component production.
5-Cyanophthalide has gradually become more competitive as automation enters some chemical markets. Mainstream suppliers lean toward economies of scale; our approach emphasizes the hands-on adjustments that small and mid-range manufacturers seek. We avoid “one size fits all” attitudes, instead incorporating customer feedback into process tweaks. That means favoring practical container sizes, not pushing one standard type; understanding customer needs around dust generation, not just adhering to generic packaging rules.
Attention to pre-shipment testing gives our customers peace of mind. Routine appearance checks, water testing, and HPLC-based purity screens precede each shipment rather than relying on periodic audits. This investment in direct quality monitoring underpins batch-to-batch reproducibility—a feature downstream processors flag during audits and partner reviews.
We keep lines open for genuine process questions. Whether a pigment house asks about best solvents for slurry preparation, or an R&D chemist needs wash recommendations for exotic coupling reactions, our team brings practical advice from real runs. This blend of technical expertise and everyday troubleshooting helps our product stand out.
Users rely on 5-Cyanophthalide as a critical intermediate. In pigment production, the compound reacts smoothly with amines or serves as a substrate for advanced acylation steps. Textile dyestuff production values its predictable melting range and solubility profile. Pharmaceutical chemists appreciate high-purity lots for reducing downstream purification work. Advanced materials developers, in areas like functional polymers, gravitate toward suppliers who provide not just generic powder but support for blending and dispersion.
We encounter new requests each quarter—a custom particle size cut for one buyer, a new drying protocol for another. Such requests push us to keep investigating process boundaries and open new trials. On occasion, collaboration with external QC labs reveals further detail about trace impurities or minor polymorphs. Rather than seeing this as a burden, we welcome user-driven R&D as an engine for improving what comes out of our reactors.
In chemical manufacturing, reputation forms through consistency and honest communication. We do not promise one-off quality gaps will vanish; we own problems, trace root causes, and work with buyers to find solutions. Our team’s training does not stop at routine handling or basic GLP—long-term team members pass along mistakes and troubleshooting tricks to new generation staff, keeping skills sharp and lessons remembered. In daily practice, we measure progress through customer audits, compliance documentation, and regular feedback cycles.
Certifications follow real practice, not the other way around. Analysts and lab leaders keep up with changes in requirements, reporting results with plain language summaries for our production teams. By focusing on the connection between lab results and plant output, we stay responsive to changing purity demands and help buyers feel confident.
Every production site deals with waste streams and regulatory oversight. 5-Cyanophthalide production generates its own share of cyanide handling concerns—a reality we address through meticulous training and compliance protocols. Overhauling scrubber designs and investing in automated monitoring reflect our steady commitment to worker safety and environmental stewardship. Regular site inspections, self-imposed audits, and honest disclosures—those shape a transparent safety culture buyers can inspect any day.
Operational efficiency offers more than cost savings. Maximizing conversion lowers waste, reduces raw material intake, and tightens the process for everyone down the line. Responsible chemical makers know that missing a purity target means slowing someone’s color filter process or adding hours to an extraction step. Over time, we see the payoff in smoother partner relationships and more trust during regulatory checks.
Compliance keeps everyone working. In 5-Cyanophthalide manufacturing, international buyers push questions about allowable impurities, trace element content, and batch reproducibility. We keep method development logs, raw material traceability records, and retain samples per evolving regulations. Those records and our documented corrective actions offer direct reassurance for partners shipping products in tightly regulated markets.
From technical data transfers to final compliance statements, practical support matters most when time or paperwork pressure mounts. Regulatory specialists may request unique certification or assistance interpreting new requirements; our technical team works side by side, sharing both knowledge and patience. Staying rooted in hands-on production rather than distant deskwork helps us stay connected and reliable.
Industry partners increasingly ask about supply security and flexibility. With global freight disruptions and raw material shortages, we pay careful attention to raw stock logistics, alternate vendor qualification, and contingency planning. These efforts show in delivery reliability and the ability to rapidly adapt when upstream issues arise. Our team does not wait for external problems to become customer issues; contingency plans evolve from lived experience on the ground.
Buyers benchmark 5-Cyanophthalide performance across different makers, assessing speed of support, clarity of communication, and allowance for custom tweaks. Direct relationships with end-users, along with open technical discussions, offer a learning channel for both sides. Investments in people—mentoring operators, advancing chemists—deliver better support than even the best automation.
Product development never stands still. Applications shift; market standards rise. As customers bring new challenges or update old processes, we revisit forms, scale, and technical support offerings. Each partnership, technical problem, and audit deepens our practical knowledge, helping our next manufacturing lot meet real needs. Trust comes from transparent effort, open records, and a commitment to face problems and solutions together.
In manufacturing 5-Cyanophthalide, years of real work matter. Knowledge from the old hands gets written down. Problems found at inspection wind back into new operator training. Customer audits become teaching moments for both sides. Out on the floor, one can feel the weight of every drum handled and the attention of every final test. The same goes for our care in documentation, reasoning through result deviations and holding ourselves accountable to all partners—large or small.
Chemical manufacturing delivers more than product; it builds relationships, passing credibility and partnership down the line. For users of 5-Cyanophthalide—those running sensitive syntheses, scaling up new pigments, or chasing next-generation pharma intermediates—our experience drives every improvement. Teams plan in the field, learn on the floor, and put lessons into action batch by batch. That blend of technical skill, practical humility, and commitment to shared success shapes our 5-Cyanophthalide as a product built on knowledge, not just a specification.