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NAPHTHOL AS-BS

C.I.:37515
CAS:135-65-9
Molecular formula: C₁₇H₁₂N₂O₄
Appearance: yellow powder
Shade: Approximate
Intensity: 100±3%
Content: ≥98.5%
Melting point: ≥243℃
Alkali-insoluble: ≤0.2%
2,3 acid content: ≤0.15%
The sieve residue 60 mesh (or 80 mesh)≤5%
Uses: This product is mainly used as an intermediate of organic pigments, and can be used to produce Pigment Red 18, 23, 31, 114, 157, 212. It can also be used for dyeing of cotton yarn, cotton fabric, vinylon, viscose and silk and discharge printing of cotton fabric. It can be used to manufacture fast pigments, neutral pigments and organic pigments. This product has a high affinity for cotton fabrics and a medium coupling ability.