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HS Code |
780753 |
| Cas Number | 13217-52-8 |
| Molecular Formula | C7H9NO.H2SO4 |
| Molecular Weight | 223.23 g/mol |
| Synonyms | 5-Amino-o-cresol sulfate, 5-Amino-2-methylphenol hemisulfate |
| Appearance | Off-white to light brown crystalline powder |
| Solubility In Water | Soluble |
| Melting Point | 175-180°C (decomposes) |
| Purity | Typically ≥98% |
| Storage Conditions | Store at 2-8°C, in a dry place |
| Usage | Hair dye intermediate, chemical reagent |
As an accredited 5-Amino-2-Methylphenol Sulfate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle, 100 grams, tightly sealed with screw cap; labeled with chemical name, CAS number, hazard warnings, and supplier details. |
| Shipping | 5-Amino-2-Methylphenol Sulfate is typically shipped in tightly sealed containers to protect it from moisture and contamination. The containers are properly labeled and handled according to safety guidelines for chemical materials. Standard shipping involves compliant packaging, robust labeling, and adherence to regulations for transporting laboratory chemicals to ensure safe delivery. |
| Storage | Store 5-Amino-2-Methylphenol Sulfate in a tightly sealed container, away from direct sunlight and moisture, in a cool, dry, well-ventilated area. Keep separate from strong oxidizers and acids. Ensure the storage area is clearly labeled, equipped with appropriate spill containment measures, and accessible only to trained personnel. Follow all relevant safety and regulatory guidelines for chemical storage. |
Applications of 5-Amino-2-Methylphenol Sulfate in Industrial Manufacturing5-Amino-2-Methylphenol Sulfate serves as a specialty intermediate across mature sectors, including hair colorants, photographic chemicals, specialty dyes for textiles and leather, and analytical reagent production. As a direct manufacturer, we supply consistent quality aligned with regulatory and process needs in each downstream segment. 1. Oxidative Hair Dye FormulationThis compound functions as a key coupler in permanent and demi-permanent hair dye formulations. It enables production of brown and warm shades through controlled oxidative color development with primary intermediates. High-purity material ensures consistent shade formation and compatibility with peroxide-based developers. Our industrial partners incorporate this intermediate during the blending phase, achieving stable color results and minimized impurity-related side effects. Industry compliance standards
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2. Textile and Leather Dye ManufacturingIndustry dye manufacturers utilize 5-Amino-2-Methylphenol Sulfate as a diazo component in the synthesis of specialized azo and anthraquinone dyes for textiles and leather finishing. Its reactivity provides precise control over color fastness and tone strength, especially in brown, red, and chestnut shades for wool, silk, and leather substrates. Quality assurance teams favor this raw material for batch-to-batch reproducibility, enabling predictable performance in large-scale dyeing operations. Industry compliance standards
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3. Photographic Chemicals Production5-Amino-2-Methylphenol Sulfate serves as a core intermediate in manufacturing color developer agents for photographic films and papers. It contributes to dye image formation and provides improved stability to developer formulations under alkaline processing conditions. Producers of color photographic chemicals integrate this material during the synthesis of complex developer agents, ensuring precise chromatic yield under various exposure conditions and longevity of processed images. Industry compliance standards
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4. Analytical Reagent and Laboratory Chemical SynthesisAnalytical reagent manufacturers use 5-Amino-2-Methylphenol Sulfate for synthesis of indicator compounds and as a chromogenic agent in spectrophotometric assays. Its precise oxidative and coupling behavior supports laboratory methods for metal ion detection and colorimetric titrations. QC laboratories prefer high-purity grades to ensure minimal background interference in sensitive analytical environments. This material provides reproducibility in custom reagent formulations for research and quality monitoring. Industry compliance standards
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Every product that leaves our plant reflects long-term experience with handling aromatic amine chemistries. 5-Amino-2-Methylphenol Sulfate, a compound that has proven reliability in specialized industries, remains a staple because of its balanced reactivity and consistency. Over the years, process engineers and laboratory staff have worked together to fine-tune every batch, not just for specification compliance, but for practical performance. Unlike raw materials sourced from the trading market, ours represents the outcome of tight process control and repeatable outputs. This makes a practical difference, especially for buyers focused on formulation results and consistency in downstream applications.
5-Amino-2-Methylphenol Sulfate belongs to a group of substituted phenols. The molecular structure offers practical advantages, including good solubility in water and compatibility with a variety of processing environments. Typical product handled at our site features a light tan to brownish solid form—reflecting uncoated, real-world batches rather than laboratory-ideal powders. The sulfate counterion adds extra stability, which prevents unwanted oxidation and degradation during both storage and transport.
Specifically, our standard product grade achieves a content of active material above 98 percent by weight, with minimal free acids and negligible metal impurities. Lab technicians run real-time HPLC analysis and colorimetric tests to chart every lot, preventing out-of-spec product from reaching customers.
End-users seek out 5-Amino-2-Methylphenol Sulfate for one primary reason: reliability under harsh process conditions. In the hair colorant sector, for example, product purity and batch-to-batch color response both matter. Our clients in dye-making facilities report reduced batch failures when switching away from open-market variants to our in-house produced powder. Technicians cite reduced variance in oxidation behavior during formulation, leading to improved control of final shades.
Pharmaceutical and photographic chemical manufacturers put a premium on rapid dissolution, stable storage life and predictable reactivity. Here, too, stories from the local plant floor matter more than catalog claims. Many customers mention that products supplied directly from chemical traders or smaller resellers often suffer from unknown storage conditions, leading to caking, off-colors, or unwanted degradation. Our handling process features bulk transfer under nitrogen, prompt packing in airtight polymer drums, and shipment within days of production.
A lot of prospective users compare 5-Amino-2-Methylphenol Sulfate with related intermediates, such as p-phenylenediamine sulfate or ortho-aminophenol derivatives. While those compounds find their roles in dye chemistry and reduction reactions, our product strikes a balance of reactivity that suits both oxidative and reductive conditions. Where p-phenylenediamine sulfate tends to cause rapid, sometimes uncontrolled, reaction on exposure to oxidants, the methyl substitution at the 2-position slows down reaction kinetics. This offers more control, especially during long blending cycles or low-temperature applications.
Unlike simple aminophenols, 5-Amino-2-Methylphenol Sulfate does not degrade as quickly in the presence of air or minor metal impurities. By tying up the amine site with a sulfate salt, unwanted side reactions are minimized. Production staff at formulation plants have mentioned that this behavior means reduced gumming in pipelines and fewer equipment cleanup intervals—important when operating continuous batch reactors for hours or days at a time.
Producing a specialty aromatic amine salt is less about simply achieving numbers on a specification sheet, more about reproducing the subtle characteristics that chemical processors and formulators count on. Stainless steel reactors within our plant are fitted with oxygen-scrubbers to maintain a low-oxygen environment. Experience shows even small fluctuations in oxygen levels create higher-tint side products, visible in finished powder color and even more evident during dissolution. This is why we employ real-time feedback controls tied to both pH and redox measurement systems.
Production line operators undergo regular training focused on proactive monitoring of batch color, granule size and pourability, since these characteristics affect not just downstream process schedules but also worker handling and plant safety. In cases where lots show minor off-colors or fail pour tests, materials are reworked or downgraded internally, not released to the customer market. This level of self-imposed strictness comes from understanding the pain points users face when poor handling disrupts their blending operations down the line.
Chemists in dye companies often mention a clear reduction in the number of adjustment cycles required to hit final product shades, once switching to a more uniform grade of 5-Amino-2-Methylphenol Sulfate. Downstream testers in pharmaceutical labs have commented on predictable purity and less sample-to-sample variation. Their experience highlights a central point: even with identical chemical specifications, small unnoticed process changes at the manufacturing stage leave big fingerprints on final product usability.
Several paper and textile industry users tell us that variability in finer properties like grain size and moisture content makes a visible difference in both coloration and process yield. Those buying through distribution chains often receive mixed-origin material, with subtle but process-disruptive changes batch-to-batch. Our ability as a manufacturer to trace product right back to the shift and reactor run helps maintain process reliability. When problems occur, technical staff can consult our process records in detail—histories that third-party handlers rarely possess.
Operators working the reactors and drying lines draw on years of on-floor experience. They know that visual checks and sample pulls are just as crucial as analytical instruments. For example, a trained operator can catch hue shifts that precede molecular degradation—long before standard test results reveal a problem. Continual coaching and sharing of ‘what went wrong’ scenarios, collected over years of operation, form the backbone of our process reliability.
Daily routine at the plant doesn’t end at the reactors. Storage staff maintain batch segregation to avoid cross-contamination, labeling every drum by time, reactor, and shift. Weekly quality circles debate not just outlier results but recurring process blips. Every time a product drum fails to meet our minimum color or granule criteria, it triggers both a technical review and a discussion among process staff. By keeping the entire plant team invested in the outcome, we build up an institutional base of knowledge that quietly improves every drum shipped.
Not all 5-Amino-2-Methylphenol Sulfate on the market receives full batch analytics before shipment. Each batch on our line undergoes spectroscopic analysis, moisture testing, and physical flow property checks before packaging. We use results not only to clear lots for sale, but to continuously adjust feedstock handling, reactor cleaning, and minor parameter tweaks. This iterative feedback loop, shared regularly among operating staff, drives down reject rates and improves lot clarity.
Tracking every batch from raw materials through finished packaging reduces the risk of error—a fact echoed by customers who’ve suffered from supply chain intermediaries losing track of product histories. When a user needs help troubleshooting plant problems, data on lot genealogy, reaction records, and environmental conditions offers the deep traceability that matters in real process bottlenecks.
Value in the specialty chemical business rests not just on the chemical’s name but on regular delivery of a predictable experience. End users in regulated fields, such as pharmaceuticals and food colorants, prize single-manufacturer provenance. When customer audits arrive, detailed batch records and plant visit opportunities support compliance with stringent quality measures—many customers relate smoother regulatory inspections simply by sourcing directly from a verified plant.
Clients balancing lean inventory pressures have commented on the benefit of reduced lead time and emergency restocking. Real-time production schedules allow us to fill urgent lots rapidly, avoiding the typical multi-week lags that follow distribution channel breakdowns. This ability also extends to minor customizations—whether supplying larger or smaller granule sizes, modified moisture levels, or batch labeling tailored to unique site requirements.
Running an aromatic amine chemistry site brings strict environmental scrutiny. Waste handling and emissions receive daily attention, and this is a point often raised by our customers during audits—many of whom have dealt with regulatory challenges stemming from imported, lower-quality intermediates. On-site effluent control, closed system gas handling, and regular waste stream testing have become routine. Investing in these systems means waste stays within permitted parameters long-term, protecting local water tables and air quality.
Customers tell us that community and downstream partner reputation matters. By manufacturing responsibly, we help reinforce positive outcomes not only in safety data sheets but in the relationships among our users, their regulators, and their communities. In contrast, companies relying on third-party suppliers frequently risk exposure to non-compliance incidents and disruptions that ripple through their own production cycles.
Not every season runs smoothly. Unforeseen disruptions—raw material shortages, new regulatory changes, or even unexpected process upsets—test both our resolve and our systems. Years in specialty chemical manufacturing teach lessons in both contingency planning and flexibility. Accepting production delays and tackling them openly with customers has, in many cases, made relationships stronger.
Some competitors rely heavily on lowest-bid sourcing or unsupervised batch processing in distant plants. Experience shows that saving a few points on up-front cost too often results in hidden costs later: more frequent formulation errors, added re-work cycles, and longer troubleshooting sessions. By focusing on long-term plant knowledge and strong supply chain traceability, we support our users through both strong and weak markets.
5-Amino-2-Methylphenol Sulfate will remain important across colorant, pharmaceutical, and specialty chemical sectors. Demand patterns reflect real developments in end-user markets—rising in sync with new dye formulations and shifting regulation. Process improvements on our production line aim to push both purity and shelf stability higher, driven by regular feedback from industry users.
Production teams watch trends not just in their own sector, but in adjacent industries, seeking opportunities to enhance usability. Outreach to plant customers, both through regular technical visits and ongoing remote support, opens channels for continued learning. Each quality or process issue raised, from caking complaints to dissolving problems, becomes a catalyst for practical changes on the floor. Investment in better environmental control, smarter process automation, and improved drum handling all feed back into the reliability end users expect.
Plant-level production teams see 5-Amino-2-Methylphenol Sulfate not just as a commodity, but as a calling card for ongoing business relationships. Within the community of chemical users and processors, trust depends on visible proof of manufacturing oversight—and on keeping supply chains tight, transparent, and resilient. Our operations revolve around listening closely to end-user experience and keeping technical dialogue active. Success, measured by customer satisfaction and repeat orders, comes only from holding fast to the core tenets of process control, openness, and a readiness to learn.
In a world where global events can upend the most carefully planned supply chains, users tell us they look for more than a product—they need a partner. We aim to fill that role for every customer of 5-Amino-2-Methylphenol Sulfate who values reliability, safety, and real-world manufacturing experience.