Naphthol AS-D (CAS: 135-61-5) Items : Naphthol AS-D C.I. 37520 CAS: 135-61-5 Chemical Formula :C 18 H 15 NO 2 Appearance: Beige brown powder Color shade(with standard): similar Strength: 100±3% Purity: ≥98% Melting point: ≥190℃ Insoluble in Alkali: ≤0.5% BON acid content: ≤0.2% Reidue on 60...

Product Details

Naphthol AS-D (CAS: 135-61-5)

Items: Naphthol AS-D

C.I. 37520

CAS: 135-61-5

Chemical Formula:C18H15NO2

Appearance: Beige brown powder

Color shade(with standard):similar



Melting point:≥190℃

Insoluble in Alkali:≤0.5%

BON acid content:≤0.2%

Reidue on 60 Msieve(or 80 Masrequest):≤5%

Usage: This product is mainly used as organic pigment intermediate,.It can produce pigment red 12, 13, 14, 17, 19, 95, 112, 136, 148, 267. This product can also be used for dyeing cotton yarn, cotton fabric, vinylon, silk and viscose, acetate fiber, direct printing.It can also be used for cotton dyeing printing and printing, intermediates can be used as a fast pigment. The affinity of cotton is low and the coupling ability is moderate.

Our company:

Qingdao Longyuntong Corporation is a leading provider of pigment intermediates, pigments, dyestuffs, pharmaceutical and pesticide intermediates.. It contributes to value creation with innovative and sustainable colorant solutions for customers from various industries.


It provides high-performance organic and inorganic pigments to meet the high demand of industrial and architectural coatings, for the agricultures industry, for the plastics industry, for special applications as well as colorants used in different printing inks.

Qingdao Longyuntong Corporation has built up strong relationships with its customers from Europe, North America, South America, whole Asia, etc.


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