1. Vitamin PP White Crystalline Powder 2.Appearance:White Crystalline Powder 3.Melting Point:128~131 PH value:5.5-7.5 Vitamin PP White Crystalline Powder CAS NO:98-92-0Molecular Weight:122.13EC NO:202-713-4Molecular Formula:C6H6N2OInChI:InChI=1/C6H6N2O/c7-6(9)5-2-1-3-8-4-5/h1-4H,(H2,7,9)Constitutional Formula: Vitamin PP White Crystalline Powder