Molecular Structure:

Product description: Product name: Naphthol AS-BS C.I. 37515 CAS: 135-65-9 Molecular formula: C17H12N2O4 Appearance: Yellow powder Shade:approximate Strength: 100 + / - 3% Content: 98.5% or higher Melting point: 243 ℃ or higher Alkali insoluble substance: ≤0.2% 2,3 acid content: ≤0.15% Sieve residue 60 mesh (or 80 mesh) ≤5% Application: This product is mainly used as an intermediate of organic pigment, and can be used in the production of pigment red 18, 23, 31, 114, 157, 212.It can also be used for dyeing cotton yarn, cotton fabric, vinylon, viscose and silk and discharge printing of cotton fabric.It can be used to make fast pigments, neutrins and organic pigments.The affinity of this product to cotton fabric is higher, the coupling ability is medium