100% 2-Amino-4-chloro-5-methylbenzenesulfonic acid

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Product Category:	o-Toluidine series
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Yixing Wencheng Chemical Co., Ltd.

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Description

Additional Information

Category
o-Toluidine series
Describe
2-Amino-4-chloro-5-methylbenzenesulfonic acid is a white to light brown powder, slightly soluble in water, and an aromatic organic intermediate, mainly used in the synthesis of red azo pigments.
Cas No.
88-51-7
Purity
100%
Synonym(s)
5-amino-4-chloro-2-methylbenzenesulfonic acid

Physical and chemical properties

1. Physical and Chemical Properties
- 1.1. Chemical Identity
  - Chemical Name: 4-amino-6-chlorotoluene-3-sulphonic acid
  - IUPAC Name: 2-amino-4-chloro-5-methylbenzenesulfonic acid
  - Synonyms: CLT Acid; 2-Amino-4-chloro-5-methylbenzenesulphonic acid; 6-Chloro-4-aminotoluene-3-sulfonic acid.
  - CAS Number: 88-51-7
  - EC Number: 201-837-1
  - Molecular Formula: $C_7H_8ClNO_3S$
  - Molecular Weight: 221.66 g/mol
- 1.2. Physical Properties
  - Appearance: Off-white to light gray or pinkish crystalline powder.
  - Odor: Odorless or very faint characteristic odor.
  - Melting Point: >300 °C (May decompose before melting).
  - Density: ~1.6 g/cm³
  - Solubility:
    - In Water: Slightly soluble in cold water; more soluble in hot water.
    - In Alkaline Solutions: Highly soluble (readily forms water-soluble salts like sodium or potassium salts).
    - In Organic Solvents: Poorly soluble in most common organic solvents (e.g., ethanol, ether).
  - pH: Acidic in aqueous suspension.
- 1.3. Chemical Properties and Stability
  - Stability: Stable under normal temperatures and pressures.
  - Incompatibilities: Incompatible with strong oxidizing agents, strong bases, and acid chlorides.
  - Hazardous Polymerization: Will not occur.
  - Hazardous Decomposition Products: Thermal decomposition can produce toxic fumes of nitrogen oxides ($NO_x$), sulfur oxides ($SO_x$), hydrogen chloride ($HCl$), and carbon oxides ($CO$, $CO_2$).
- 1.4. Other Key Data
  - Flash Point: Not applicable (solid).
  - Autoignition Temperature: Not determined.