Naphthol AS-PH CAS NO.: 92-74-0 

Product name: Naphthol AS-PH CAS NO.: 92-74-0 Place of Origin: China Molecular Formula: C19H17NO3 EINECS number: 202-185-5 Appearance: Buff White Powder Strength:100% Purity: 99.0%min Melting Point: 155℃min Base Insoluble:0.15%max Application: It is mainly used for manufacturing organic pigments. Qingdao Langke Co., Ltd is one of the main supplier of pigment,dyestuff  and their intermediates. In the past 10 years, we have sold the products to more than 20 countries. Either acid dyes or direct dyes, or even pigment, they all gained good reputation. To choose us as the partner, you will not be disapointed.