|
HS Code |
208086 |
| Chemical Name | 2-Phthalimido-5-Amino Phenol |
| Molecular Formula | C14H10N2O3 |
| Molecular Weight | 254.24 g/mol |
| Cas Number | 101469-68-3 |
| Appearance | Off-white to light brown powder |
| Melting Point | 240-244 °C |
| Solubility | Slightly soluble in water; soluble in organic solvents |
| Purity | Typically ≥98% |
| Storage Conditions | Store in a cool, dry, well-ventilated place |
| Synonyms | 2-(1,3-Dioxoisoindolin-2-yl)-5-aminophenol |
As an accredited 2-Phthalimido-5-Amino Phenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 250g of 2-Phthalimido-5-Amino Phenol supplied in a sealed amber glass bottle with tamper-evident cap and clear labeling. |
| Shipping | **Shipping Description:** 2-Phthalimido-5-Amino Phenol is shipped in tightly sealed containers, protected from moisture and direct sunlight. The packaging is compatible with chemical regulations, labeled with hazard and handling information. Transportation complies with international safety standards to prevent leaks or contamination during transit. Store in a cool, dry location upon receipt. |
| Storage | 2-Phthalimido-5-Amino Phenol should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers and acids. Keep the storage area free from sources of heat and ignition. Protect the chemical from light to prevent degradation. Always label the container clearly and handle with appropriate personal protective equipment. |
Competitive 2-Phthalimido-5-Amino Phenol prices that fit your budget—flexible terms and customized quotes for every order.
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In our production hall, the real story behind 2-Phthalimido-5-Amino Phenol, often listed by its CAS number 67848-71-9 or referenced by specialists as PAPH, comes alive each day. While it’s easy to spot the technical jargon in catalogs, we focus on how this compound builds value straight from our reactors to the end processes in which it ends up. Some chemistries pass across our desks as commodities; 2-Phthalimido-5-Amino Phenol stands apart, mostly due to its well-defined mix of reactivity, molecular compatibility, and downstream versatility.
On our line, we often work with both standard and custom iterations, adjusting synthesis conditions based on our clients’ application requirements. Our regular output for 2-Phthalimido-5-Amino Phenol features a purity not less than 99%, as determined by HPLC. The crystalline solid typically presents itself as a pale off-white to light tan powder—this color variance reflects subtle differences in raw material provenance and process optimization, not irregularity. Every batch runs through repeated checks for moisture by Karl Fischer titration and residual solvents by gas chromatography.
Throughout manufacturing, we commit to minimizing isomer and dimer content, since these impurities can complicate steps downstream, especially in active pharmaceutical ingredient syntheses or dye intermediates, where reproducibility impacts yield and quality. Particle size hasn’t been a significant variable for our buyers to date, but we maintain a typical d50 in the range of 40-80 microns, favoring good dispersion into most reaction media.
We do not rely solely on textbook procedures for the synthesis route. The phthalimide protection on the amino group, for example, not only ensures improved stability during transport and storage, but also allows selective reactivity at the para-amino site. This logic, drawn from decades of bench and pilot work, guides our choice to start with 2-nitrophenol, proceeding through phthalimide formation and precise reduction controls. The experience gained from running hundreds of batches backs our tight process control—minimizing off-target side products, boosting throughput, and cutting purification time.
Whether we’re filling kilogram drums or multi-tonne orders, every step in the process undergoes scrutiny. From raw phthalic anhydride sourcing to ammonia quenching and even the final crystallization solvent system, every tweak comes from years of data, both from internal QC and customer feedback. We have weathered batches that failed analytical checks because an upstream supplier altered their process, and in turn, we now trace every material back through supplier audits and joint technical workshops. In the rare event a spec drifts, we are often the first to catch it, saving time and rework costs both for us and for downstream processors.
Ask the technical team here what 2-Phthalimido-5-Amino Phenol means for applicators, and you’ll hear varied answers shaped by years supporting R&D and scale-up projects. Several clients in pharmaceutical manufacturing rely on this compound as a protected amine intermediate. Its phthalimido group holds back premature reactions during multi-step builds, especially in the construction of complex molecular architectures, like certain anti-cancer or anti-inflammatory scaffolds. One customer’s team described how the compound kept their amine protected during Grignard-based substitutions—preventing byproduct headaches and reproducibility gaps.
In dyes and specialty pigments, the same protected amine structure grants process chemists the latitude to fine-tune color development. Typical resins or color bases built from this skeleton resist premature hydrolysis, leading to richer color payoff and longer shelf-life, both on store shelves and in industrial equipment. And for analytical or research chemists probing nucleophilic aromatic substitution mechanisms, the controlled reactivity means more predictable results, a rare commodity in exploratory synthesis.
Some plants test the adaptability of our product by swapping it into legacy processes previously reliant on less stable intermediates. The pay-off comes in higher process safety (fewer runaway reactions or hazardous byproducts thanks to lower free-amine volatility) and more straightforward regulatory review. In nearly every case, user feedback loops straight into our process improvement cycle, driving tweaks where needed.
Shifting regulations in pharmaceutical and pigment manufacturing place new emphasis on impurity profiles and traceability. As governments clamp down on uncontrolled impurities—especially residual metals and trace organic contaminants—buyers come to us looking for auditable assurances and transparent supply. The days of ‘good enough’ synthesis are over. Our experience at the interface of process safety and analytical rigor put us in the zone for meeting these raised standards, not only by keeping the product pure but by documenting every step.
We pursued analytical certifications—full residual solvent profiling, heavy metal panels, and even participation in international proficiency testing—to back customer claims during inspections. More than one customer in the last few years has faced failing batches from other sources during audits, later coming to us for reliable documentation and peer-reviewed validation.
Seasoned chemists looking at 2-Phthalimido-5-Amino Phenol often compare it to direct-amino analogues or simple nitro intermediates. There is a difference rooted in the function the phthalimido group provides. Without it, direct amines bring more volatility and lower shelf stability. Process safety officers in batch plants remember situations where early-stage amine exposure led to hazardous vapor generation or nocuous byproducts, especially under exothermic conditions. With phthalimide protection, much of this risk falls away.
The dual handle—protected and free-amino functionality—grants a flexibility that’s missing in the more basic analogues. Chemists appreciate the ability to deprotect under mild conditions, feeding the free-amine into delicate couplings or ring closures without risking side reactions from residual protecting group fragments. Other intermediates claim high reactivity but end up complicating the final purification stage or producing stubborn side-products that fail regulatory checks. We saw one competitor’s batch suffer a 20% yield loss from an unaddressed side-chain, and substituted our version to regain efficiency.
Another distinction lies in the ease of storage and long-term handling. Untreated amino phenols suffer from rapid oxidative degradation; our protected variant keeps active functional groups hidden from air and light, yielding robust shelf life under ambient conditions. Major clients reported noticeable improvements in warehouse batch consistency and lower reject rates as a direct result of these stability upgrades.
Some see chemical manufacturing as a closed recipe. We’ve learned this is rarely true. Even after years of scale-up, edge cases arise—unexpected lot-to-lot variation in moisture, subtle shifts in IR scanning from slight input variations, or feedback from polymer processors that texture or granule size could swing final properties. Direct phone calls from plant managers and scientists drive our process improvements—not market surveys or trend analysis reports.
Over the years, we’ve adjusted filtration techniques to reduce fine particulate carryover, updated internal storage protocols in response to shelf tests, and diversified our supply base for certain precursors when volatility in commodity markets spiked. We never see customer feedback as criticism; instead, it’s the spark for better productivity and fewer kinks in the end-users’ plants. We welcome plant tours, joint quality teams, and external analytical teams, because those insights yield direct points for action.
The chemicals sector never stands still. Looking ahead, regulatory requirements will tighten further, especially for pharmaceutical and pigment intermediates. On one front, more rigorous control over trace element and byproduct levels will define market entry. On another, sustainability pressures demand reduced solvent loads, improved raw material efficiency, and lower-energy processes—requirements that favor suppliers with adaptable, responsive production techniques.
Patterns from the last few years suggest that buyers value a partner who aids in formulation troubleshooting, not only ships product. Our technical service group regularly supports customers on deprotection procedures, reaction optimization, and impurity troubleshooting. As process complexity grows, this support only deepens—feedback keeps us a step ahead of generic providers who rarely stray outside standard specification.
We are also investing in root-cause analysis tools, process analytical technology for real-time monitoring, and advanced drying protocols to further pin down consistency. Every process variable, from effluent treatment to contamination risk, comes under review at routine intervals. We owe it to those who trust our intermediates in multi-million-dollar active ingredient campaigns or complex color pigment projects.
Relationship chemistry stands at the core of our operation. Over the last decade, we’ve watched batch operators, QA analysts, and researchers shape the fine details of our process. Their hands-on insights—sourced from both production shifts and line audits—drive tighter specifications, safer practices, and greater value to each container we ship.
From the long process of phthalimide protection to the gentle handling required to keep amino groups reactive yet shielded, 2-Phthalimido-5-Amino Phenol is a direct product of practical manufacturing science, not theory. Its differences from older intermediates extend beyond paperwork—they show up in every analysis report and every kilo that arrives on time, to the right purity, ready to drive innovation across pharmaceutical, dye, and research communities.
In our field, reputation rides not on a marketing claim, but on the track record of every lot delivered. Few things matter more in a regulated sector than being able to trace each compound’s journey from raw input to finished product. We’ve faced years where raw material lines dried up, forcing creative sourcing but never compromising on traceability. We built backup testing infrastructure, doubled routine verification, and invited customer quality teams for joint audits. That open-source approach raised our game in more ways than one.
Customers have stayed with us through shifts in pricing cycles, changes in regulation, and even global supply chain snarls—not because of shined-up web copy but because every container tells the continuous story of reliability and control. Each improvement in our 2-Phthalimido-5-Amino Phenol process is logged, audited, and referenced, giving confidence that, batch after batch, we stand behind this product with experience, not just claims.
Years spent producing 2-Phthalimido-5-Amino Phenol have given us more than process efficiency—they’ve grounded us in what matters for those who depend on reliable intermediates. Every tweak, from upstream raw material checks to advanced monitoring techniques, traces back to the real needs of industry users.
For buyers who want more than a checklist compound, working with a real manufacturing group changes the experience. They gain not just a product, but a collaborative partner keen on improving every link of the supply chain. The trust built through years of transparent, verifiable manufacturing stands as our ultimate differentiation.
2-Phthalimido-5-Amino Phenol, in our hands, means reliability shaped by experience, focus on real application, and a consistent push for higher standards. The journey continues, every shift and every batch, constantly improved by those who depend on the performance and accountability of their chemical partners.
