3,3′-Dichlorobenzidine hydrochloride

​3,3′-Dichlorobenzidine Hydrochloride Chemical Formula: C₁₂H₁₀Cl₂N₂·HCl Structure: ​Chlorinated aromatic diamine with: ​Two benzene rings substituted with ​chlorine atoms at the 3-positions....

Category:Chemical Additives

Introduction

3,3′-Dichlorobenzidine Hydrochloride

Chemical Formula: C₁₂H₁₀Cl₂N₂·HCl
Structure: ​Chlorinated aromatic diamine with:

  • Two benzene rings substituted with ​chlorine atoms at the 3-positions.
  • A ​benzidine group (-NH-NH-) linking the rings.
  • A ​hydrochloride salt attached to one amino group.

Physical Properties

  • Appearance: Gray to white crystalline solid.

Applications

  1. Dye & Pigment Production:
    • Key intermediate for ​textile dyes, ​plastics, and ​printing inks.
  2. Polymer Synthesis:
    • Used in producing specialty polymers.
  3. Organic Chemistry:
    • Reagent for synthesizing nitrogen-containing compounds.

Safety Considerations ⚠️

  • Toxicity:
    • Potential carcinogen; toxic via inhalation, ingestion, or skin contact.
  • Handling:
    • Use ​PPE (gloves, goggles, respirator) and ensure ​adequate ventilation.
  • Storage:
    • Store in a ​cool, dry, airtight container away from ​moisture and incompatible substances.

Summary:
3,3′-Dichlorobenzidine hydrochloride’s role as a ​dye/pigment intermediate is critical in industrial chemistry. Its ​carcinogenic risk mandates strict adherence to safety protocols during handling and storage.

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