C.I.Pigment Red 63

Pigment red 63 (C.I. 15880)

3-Hydroxy-4-[(1-sulfo-2-naphtyl)azo]-2-naphthalenecarboxylic acid disodium salt

3-Hydroxy-4-(1-sodiooxysulfonyl-2-naphtylazo)-2-naphthalenecarboxylic acid sodium salt