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2-Aminophenol Hydrochloride forms by reacting 2-aminophenol with hydrochloric acid, leading to a stable salt favored in chemical synthesis. Its molecular formula, C6H8ClNO, reflects its straightforward composition. In labs and manufacturing lines, it shows up as a solid, mainly in white or off-white flakes, powders, or sometimes crystalline granules. Density averages at around 1.2 g/cm³, enough for reliable dosing but light enough for safe handling and transport in bulk. I’ve noticed in my own chemistry work how important it is to have bulk raw materials that handle well, don’t clump, and dissolve smoothly—2-Aminophenol Hydrochloride fits these requirements across a range of preparations, including dye intermediates, pharmaceutical raw materials, and specialty chemicals.
Under the microscope, 2-Aminophenol Hydrochloride features simple monoclinic crystal habits, offering solid packing and minimal dusting for bench work. Its physical state resists air moisture uptake, making it more stable on storage shelves. It rates as a solid raw material rather than a volatile liquid, meaning no heady vapor risks or headaches with spillage compared to more fragrant amine compounds. On the bench, it dissolves easily in water, giving a transparent solution, which matters most when preparing concentrated stock for high-throughput synthesis or batch reactors. My experience tells me that its reliable melting point, usually just above room temperature (around 207°C decomposed), means it won't melt in the hand or in normal storerooms.
2-Aminophenol Hydrochloride’s structure consists of a benzene ring linking an amino group and a hydroxyl group in the ortho position, with hydrochloride as the counterion. This arrangement gives it reactivity in both nucleophilic and electrophilic substitutions on the ring—prime for downstream organic chemistry. I’ve seen its reaction pathway allow cost-effective synthesis for key intermediates like paracetamol or azo dyes. It keeps its integrity under standard storage, but real-world practice insists on keeping moisture exposure low to limit any risk of hydrolysis or slow degradation.
In the business of raw materials, knowing the HS Code (29222900 for aromatic amines including aminophenols and their derivatives) speeds up shipment and border documentation. This code lines up with customs needs for both Asian and global movement, reducing clearance delays and headaches. Industrial use covers pharmaceuticals, hair dye precursors, and metal complex dyes. High purity requirements demand low impurity content; manufacturers guarantee this through tight specs, often exceeding 98% assay. In my work supplying specialty formulas, I’ve depended on well-documented COAs and MSDS data, confirming the product meets these essential specs for consistency and traceability.
No one should overlook the hazards—2-Aminophenol Hydrochloride is harmful by ingestion, inhalation, or skin contact, with acute toxicity in high doses but manageable in ventilated, gloved operations. Its MSDS lists it as hazardous, but good housekeeping, solid ventilation, and personal protective equipment prevent most risks. Spillage gets mopped up as a powder—you don’t want to wash this down the drain. Long-term, I’ve learned never to relax with even the seemingly mild chemicals, as repeated, casual exposure ups the allergic and chronic risk factor.
The solid typically comes in double-layered PE-lined fiber drums, resistant to both humidity and light. Keeping the lid tight extends shelf life, and warehouse conditions favor cool, dry environments out of sunlight. Bulk buyers—think paint, pharma, or dye plants—specifically check packaging integrity, since nobody wants cake-forming powders or shed crystals that gum up feeders and dilute batches. Distribution chains track molecular batch numbers, making traceability possible in recalls or quality investigations, another real-world safeguard against contamination or mislabeling.
Production efficiency scales with knowledge—the more a tech knows about density, crystal form, reactivity, and safe limits, the fewer accidents, recalls, or rework batches there’ll be. For years, I’ve seen predictable performance matter more than headline specs—2-Aminophenol Hydrochloride works best for serious producers who prioritize certified material data, solid supplier relationships, and regular lab verifications. Open sharing of MSDS sheets, batch certificates, ASTM or ISO specs, and up-to-date regulatory documentation meets both E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) and real-world risk management. These practices reinforce a culture of transparency, lowering the odds of hazardous mishandling and unwanted health issues on-site.
Chemical Name: 2-Aminophenol Hydrochloride
Molecular Formula: C6H8ClNO
Molecular Weight: 145.59 g/mol
Appearance: White to slight yellow solid: flakes, powder, or small crystals
Density: ~1.2 g/cm³
Melting Point: ~207°C with decomposition
Solubility: High in water, low in nonpolar solvents
HS Code: 29222900
Storage: Cool, dry, sealed containers away from strong oxidizers
Safety: Harmful by ingestion/inhalation, hazardous per SDS guidance, avoid direct skin/eye contact
A product like 2-Aminophenol Hydrochloride doesn't just flow from catalog to production line without questions; it carries a responsibility for clean handling, conscientious sourcing, and steady oversight. Whether processing it into a finished pharmaceutical agent, stabilizing a dye batch, or supporting research with crystal-clear spec sheets, those who engage directly with this material depend on solid chemical knowledge, careful supply chain checks, and constant awareness of hazards and safe limits. That level of engagement, in my experience, is what keeps both workers and end-users safe, supporting efficient production and high-quality output in every batch that leaves the warehouse.
