Description

3-Amino-5-Sulfosalicylic Acid is a multifunctional aromatic compound that serves as a key intermediate and analytical reagent in advanced chemical synthesis. Its unique structure, featuring both amino and sulfonic acid groups on a salicylic acid backbone, provides excellent chelating properties and reactivity. This chemical is essential for manufacturers and R&D laboratories in the pharmaceutical, dye, and analytical chemistry sectors, where it is valued for its role in producing active pharmaceutical ingredients (APIs), complex dyes, and as a reagent in metal ion detection.

Application

• Pharmaceutical Intermediate: Used in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs), particularly those requiring a salicylate core.
• Analytical Chemistry Reagent: Functions as a sensitive chromogenic agent and chelator in spectrophotometric methods for the detection and quantification of metal ions like iron, copper, and aluminum.
• Dye and Pigment Manufacturing: Serves as a key precursor in the production of azo dyes and other complex colorants, contributing to color fastness and molecular stability.
• Chemical Research & Development: Employed as a building block in organic synthesis for creating novel compounds with specific functional groups.
• Complexometric Titration: Acts as an indicator or masking agent in titration processes involving polyvalent metal ions.

Basic Information

Product Name	3-Amino-5-Sulfosalicylic Acid
CAS No.	6201-86-1
Molecular Formula	C7H7NO6S
Molecular Weight	233.20 g/mol
Synonyms	5-Sulfosalicylic Acid-3-amine; 2-Hydroxy-5-sulfo-3-aminobenzoic Acid; 3-Amino-5-sulfosalicylic Acid; 3-Amino-5-sulphosalicylic Acid; 3-Amino-5-sulfobenzoic Acid, 2-Hydroxy-; 5-Sulfoanthranilic Acid, 3-Amino-; Benzoic acid, 2-hydroxy-3-amino-5-sulfo-; 3-Amino-5-sulfosalicylate
EINECS	Contact for details

Quality Control

Our 3-Amino-5-Sulfosalicylic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for industrial and laboratory use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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