Description

3-Amino-4-Hydroxybenzoic Acid Hydrochloride is a high-purity organic salt derivative of para-aminosalicylic acid, serving as a critical pharmaceutical intermediate and fine chemical building block. Its value lies in its dual functional groups, making it a versatile precursor for synthesizing complex molecules in regulated industries. This compound is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical sectors seeking reliable, high-quality raw materials for advanced synthesis.

Application

• Pharmaceutical Intermediate: Key starting material (KSM) or building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in anti-tuberculosis and other therapeutic agents.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Serves as a precursor for azo dyes and other complex colorants.
• Research & Development: Valuable reagent in organic synthesis and medicinal chemistry research for creating novel compounds.
• Fine Chemical Production: Intermediate in the manufacture of complex specialty chemicals, including photographic chemicals and polymer additives.

Basic Information

Product Name	3-Amino-4-Hydroxybenzoic Acid Hydrochloride
CAS No.	1571-65-9
Molecular Formula	C7H8NO3·HCl
Molecular Weight	205.60 g/mol
Synonyms	4-Amino-3-hydroxybenzoic acid hydrochloride; 3-Amino-4-hydroxybenzoic acid HCl; 3-Amino-4-hydroxybenzoic acid monohydrochloride; 3-Amino-4-hydroxybenzoic acid hydrochloride salt; 4-Carboxy-2-aminophenol hydrochloride; PAS derivative hydrochloride; p-Aminosalicylic acid derivative hydrochloride; Benzoic acid, 3-amino-4-hydroxy-, hydrochloride (1:1)
EINECS	Contact for details

Quality Control

Our 3-Amino-4-Hydroxybenzoic Acid Hydrochloride is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for use as a pharmaceutical intermediate. Certificates of Analysis (COA) documenting all test results are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.