Description

5-Chloroorthanilic Acid is a specialized aromatic sulfonic acid derivative, serving as a key intermediate in the synthesis of dyes, pigments, and fine chemicals. Its value lies in the reactive sulfonic acid and chloro functional groups, which enable precise chemical modifications to create complex molecular structures. This compound is essential for manufacturers in the dye and pigment industry, as well as for research and development of advanced organic materials.

Application

• Primary intermediate in the synthesis of azo dyes and pigments.
• Building block for sulfonamide-based pharmaceuticals and active pharmaceutical ingredients (APIs).
• Precursor in the production of optical brighteners and fluorescent agents.
• Key raw material for manufacturing liquid crystal display (LCD) chemicals.
• Intermediate in agrochemical synthesis for herbicides and pesticides.
• Used in research laboratories for organic synthesis and material science studies.
• Component in the preparation of corrosion inhibitors and specialty surfactants.

Basic Information

Product Name	5-Chloroorthanilic Acid
CAS No.	133-74-4
Molecular Formula	C6H6ClNO3S
Molecular Weight	207.63 g/mol
Synonyms	2-Amino-4-chlorobenzenesulfonic Acid; 4-Chloro-2-aminobenzenesulfonic Acid; 5-Chloro-2-aminobenzenesulfonic Acid; 2-Amino-4-chlorobenzene-1-sulfonic Acid; 4-Chloroanthranilic-6-sulfonic Acid; Orthanilic Acid, 5-chloro-; 5-Chloro-2-anilinesulfonic Acid
EINECS	205-124-6

Quality Control

Our 5-Chloroorthanilic Acid is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for industrial and research applications. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 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.