Molecular Formula C29H25N5O5 Molecular Weight 523.55 CAS Registry Number 31778-10-6 EINECS 250-800-0 IdentificationName Pigment Red 208Synonyms Butyl 2-[[3-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-hydroxy-1-naphthyl]azo]benzoate Molecular Structure Molecular Formula C29H25N5O5Molecular Weight 523.55CAS Registry Number 31778-10-6EINECS 250-800-0 Pigment Red 208 31778-10-6