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  • Naphthol Series
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  • Bases And Others
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  • Pigments
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  • Dyestuffs
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NAPHTHOL AS-BO

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Item：NAPHTHOL AS-BO

C.I. 37560

CAS: 132-68-3
Chemical Formula：C21H15NO2
Appearance: Beige powder
Color shade(with standard):similar
Strength:100±3%
Purity:≥98.5%
Melting point:≥215℃
Insoluble in Alkali:≤0.20%
BON acid content):≤0.20%
Reidue on 60 Msieve(or 80 Masrequest):≤5%



Usage: This product is mainly used for dyeing cotton yarn, cotton fabrics, cotton fabrics, corduroy, vinylon, viscose, silk and cotton fibers and it is generally not used for printing. It has high affinity to cotton, and the coupling ability is moderate. It can be used to make fast, neutral and organic pigments.
This product is also used as an intermediate of organic pigment, which can produce pigment red 16,134.