Description

3-Amino-5-chloro-4-hydroxybenzenesulfonic acid (CAS No. 5857-94-3) is a high-purity sulfonic acid derivative with the molecular formula C₆H₆ClNO₄S. This compound is characterized by its aromatic structure featuring amino, chloro, hydroxy, and sulfonic acid functional groups, making it a versatile intermediate in organic synthesis and specialty chemical production. It is supplied as a fine powder or crystalline solid with excellent solubility in polar solvents, ensuring ease of handling in laboratory and industrial applications. Ideal for researchers and scientists, this product is rigorously tested for purity, consistency, and stability, meeting the highest standards for chemical research and development.

Properties

• CAS Number: 5857-94-3
• Complexity: 275
• IUPAC Name: 3-amino-5-chloro-4-hydroxy-benzenesulfonic acid
• InChI: InChI=1S/C6H6ClNO4S/c7-4-1-3(13(10,11)12)2-5(8)6(4)9/h1-2,9H,8H2,(H,10,11,12)
• InChI Key: QGTXBWMKRGHPDD-UHFFFAOYSA-N
• Exact Mass: 222.9706065
• Molecular Formula: C6H6ClNO4S
• Molecular Weight: 223.63
• SMILES: C1=C(C=C(C(=C1N)O)Cl)S(=O)(=O)O
• Topological: 109
• Monoisotopic Mass: 222.9706065
• Synonyms: 5857-94-3, 3-Amino-5-chloro-4-hydroxybenzenesulfonic acid, Benzenesulfonic acid, 3-amino-5-chloro-4-hydroxy-, UTG72D92WW, 3-Amino-5-chloro-4-hydroxybenzenesulphonic acid, DTXSID6064032, 1-AMINO-3-CHLORO-2-HYDROXY-5-BENZENESULFONIC ACID, DTXCID8042422, 227-482-7, METANILIC ACID, 5-CHLORO-4-HYDROXY-, 6-Chloro-2-aminophenol-4-sulfonic acid, BRN 3285003, 5-Chloro-4-hydroxymetanilic acid, EINECS 227-482-7, Kyselina 2-chlor-6-aminofenol-4-sulfonova [Czech], Kyselina 2-chlor-6-aminofenol-4-sulfonova, UNII-UTG72D92WW, SCHEMBL6935562, QGTXBWMKRGHPDD-UHFFFAOYSA-N, AKOS016010039, LS-13120, NS00020847

Application

3-Amino-5-chloro-4-hydroxybenzenesulfonic acid is primarily used as a key intermediate in the synthesis of dyes, pigments, and pharmaceutical compounds. Its reactive functional groups enable its incorporation into complex molecular architectures, particularly in the development of sulfonamide-based drugs. Additionally, it serves as a precursor in the production of specialty chemicals for agrochemical and material science applications. Researchers value this compound for its role in heterocyclic chemistry and as a building block for advanced organic transformations.

Safety and Hazards

GHS Hazard Statements

• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statements

• P264+P265, P280, P305+P351+P338, and P337+P317

Hazard Classes and Categories

• Eye Irrit. 2 (100%)

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