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5-(2-Hydroxy-3-naphthoylamino)benzimidazol-2-one
Product Code:
ASBI
Product name:
5-(2-Hydroxy-3-naphthoylamino)benzimidazol-2-one
Category:
Dye intermediates
CAS NO.:
26848-40-8
Molecular formula:

 C18H13N3O3

Structural formula:
Quality Index:

① Appearance: Yellow powder
② Purity (%): ≥99.0
③ Loss on drying (%): ≤0.5
④Alkali insoluble matter (%): ≤1.0
⑤ABI Purity (%): ≤0.15
⑥2,3 acid (%): ≤0.1
⑦PH: 7-7.5 

Uses:
The product is the special intermediate for benzimidazolone series of organic pigments, mainly for the synthesis of dark high-grade azo pigments, including C. I. Pigment Red 171,176,185,208, Pigment Purple 32, Pigment Brown 25, and so on more than ten kinds of important products. 5-Amino-2 (3H) -benzimidazolone synthesis of ASBI, can be used for the synthesis of pigment red 171,175,176,185,208, purple 33, brown 25 and other important products.
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