Description
1-Diazo-2-naphthol-4-sulfonic acid is a naphthalene-based diazo intermediate identified by CAS number 887-76-3 and empirical formula C₁₀H₆N₂O₄S. With a molar mass of 250,23 g/mol, the molecule combines a reactive diazo function with a sulfonic acid group on a naphthol core, making it valuable for azo-coupling chemistry, dye intermediate synthesis and related specialty organic transformations. The compound is Its defined structure supports controlled coupling to aromatic amines or phenols and the preparation of sulfonated azo colourants or analytical reagents. Physical and identity data from the manufacturer description aid reaction stoichiometry and process documentation. Typical applications include dye chemistry research, intermediate screening and teaching laboratories focused on diazo and azo compound formation. Observe standard precautions for diazo compounds and consult institutional safety guidance; the material is associated with UN number 2925.
This article is part of Organic building blocks & synthesis reagents, in Organic chemicals & synthesis reagents.
Key features
- Nitrogen content (N): 10.6 to 11.8 %
- Carbon (C): 45.6 to 50.4 %
- Colour: yellow to brown
- Form: powder
- Water content (KF): ≥ 7 %
- CAS number: 887-76-3
- Pack size: 50 g
- Pack size: 100 g
- Pack size: 250 g
- Empirical formula: C₁₀H₆N₂O₄S
- Molar mass: 250,23 g/mol
- Storage temperature: +2 to +8 °C
- UN nr.: 2925
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
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