O-Tolidine

Product Description

O-Tolidine (Code: 06265) is a high-purity aromatic amine compound widely used as a colorimetric reagent and chemical intermediate. It appears as pale yellow to off-white crystalline solid and develops a deep blue color upon oxidation, making it valuable for analytical determination of chlorine, nitrates, and oxidizing agents.

In laboratories, O-Tolidine is primarily utilized in water analysis, textile testing, and histological staining. Industrially, it serves as a precursor in dye and pigment synthesis, particularly in producing benzidine-based and azo dyes.

Key Features

• Product Code: 06265
• Chemical Name: O-Tolidine
• Synonyms: 3,3′-Dimethylbenzidine; Orthotolidine
• Chemical Formula: C₁₄H₁₆N₂
• Molecular Weight: 212.29 g/mol
• CAS Number: 119-93-7
• Appearance: Pale yellow to off-white crystalline powder
• Purity: ≥99% (Analytical / Laboratory Reagent Grade)
• Melting Point: 126–128°C
• Boiling Point: Decomposes on heating
• Solubility: Slightly soluble in water; soluble in alcohol, ether, and dilute acids

Applications

Laboratory & Research

• Analytical Reagent: Used in colorimetric and spectrophotometric determination of chlorine, nitrates, and oxidants.
• Water Testing: Common reagent for detecting residual chlorine in drinking water and swimming pools.
• Histology & Microscopy: Used as a biological stain for tissue sections.
• Research Chemical: Precursor for synthesis of advanced organic and dye intermediates.

Industrial Uses

• Dye & Pigment Industry: Intermediate in manufacturing azo and benzidine dyes.
• Chemical Manufacturing: Used in preparation of polymers, coatings, and specialty colorants.
• Textile Applications: Employed in testing and dyeing processes for synthetic fibers.

Safety & Handling

• Hazard: Toxic by ingestion, inhalation, or skin contact; may cause irritation and is potentially carcinogenic.
• Precautions: Handle in a well-ventilated fume hood. Use protective gloves, goggles, and a laboratory coat. Avoid inhaling dust or vapors.
• Storage: Store in tightly closed containers in a cool, dry, and dark area away from strong oxidizing agents.
• Disposal: Treat as hazardous chemical waste and dispose of according to local environmental and safety regulations.

Price in Bangladesh

Available in 10 g, 25 g, 50 g, and 100 g laboratory-grade packs.
Bulk and institutional quantities available upon request.
Competitive pricing and reliable nationwide delivery.

Why Choose O-Tolidine 06265 from M/S Bright Scientific Co.?

• High-purity analytical grade O-Tolidine for precise colorimetric analysis.
• Reliable performance for chlorine and oxidant determination.
• Available in multiple laboratory pack sizes.
• Nationwide supply with prompt delivery and competitive rates.
• Trusted by research laboratories, water testing facilities, and universities across Bangladesh.

Contact Information

M/S Bright Scientific Co.
📞 Phone: 01711285976