Naphthol AS-E 92-78-4 CAS NO.92-78-4

naphthol as-e

product name:

naphthol as-e

index no.:

azoic coupling component 10 (37510)

molecular formula:

c₁₇h₁₂o₂ncl

structural formula:

molecular weight:

297.5

appearance:

light beige powder

assay:

≥98.5%

color light:

near to standard substance

intensity, molecule:

100±3 of standard substance

melting point(dry product):

256°c

2.3 acid content:

≤0.2%

unsoluble substance content in basic liquor:

≤0.20%

use:

mainly used in the dyeing of cotton textiles, cotton yarns, visous fiber and silk etc.