Naphthol AS-D
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- Category :
Dyestuffs and Pigments/Others
- CAS NO : 135-61-5
- EC NO : 205-205-0
- Molecular Formula : C18H15NO2
- Main Specifications :
- Synonyms : C.I. 37520;C.I. Azoic Coupling Component 110;C.I. Azoic Coupling Component 18;C.I. Developer 21;naphthol as-D type iii repurified;3-hydroxy-2-methyl-2-naphthanilide;Azoic coupling component 18;Naphtol AS-D;2-Hydroxy-3-Naphthoyl-O-Toluidine;3-hydroxy-N-(2-methylphenyl)naphthalene-2-carboxamide;3-hydroxy-2-naphtol-o-toluidine;Grounder AS-D;
Molecular Structure:
Product description:
Product name: Naphthol AS-D
C.I. 37520
CAS: 135-61-5
Chemical name: 3-hydroxy-N - (2-methyl-phenyl) -2-naphthoformamide
Molecular formula: C18H15NO2
Formula:
Appearance: Light rice brown powder
Shade: approximate
Strength: 100 + / - 3%
Content: 98% or higher
Melting point: 190 ℃ or higher
Alkali insoluble substance: ≤0.5%
2,3 acid content: ≤0.2%
Sieve residue 60 mesh (or 80 mesh) ≤5%
Application: This product is mainly used as an intermediate of organic pigment, which can produce pigment red 12, 13, 14, 17, 19, 95, 112, 136, 148, 253, 267.This product can also be used for dyeing cotton yarn, cotton fabric, vinylon, viscidity, silk and vinegar fiber, as well as for direct printing, dye-proof printing and discharge printing of cotton cloth, and as an intermediate for fast pigment.The affinity to cotton is low, the coupling ability is medium.
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