N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecaroxamide

C₁₈H₁₃N₃O₃

1.Appearance: Yellow powder
2.Content: ≥99.0%
3.Loss on drying: ≤0.5%
4.Alkali insoluble: ≤1.0%
5.ABI Content: ≤0.1%
6.2,3 Acid Purity: ≤0.1%
7.PH: 7-7.5

The special intermediate for Benzimidazolone series of organic pigments,including C.I., pigment Red 171, 175, 176, 185, 208, pigment purple 32, 33, pigment brown 25 and so on.