CAS: 7057-57-0 Molecular Formula: C18H15ClN2O Molecular Weight (g/mol): 310.781 InChI Key: HWYNRVXFYFQSID-UHFFFAOYSA-M Synonym: basic blue 6,meldola's blue,phenylene blue,unii-cp2st8ed1o,c.i. basic blue 6,cp2st8ed1o,9-dimethylamino benzo a phenoxazin-7-ium chloride,benzo a phenoxazin-7-ium, 9-dimethylamino-, chloride,8-dimethylamino-2,3-benzophenoxazine hemi zinc chloride salt,n,n-dimethyl-10-oxa-5-azatetraphen-8-iminium chloride PubChem CID: 101929 IUPAC Name: benzo[a]phenoxazin-9-ylidene(dimethyl)azanium;chloride SMILES: C[N+](=C1C=CC2=NC3=C(C=CC4=CC=CC=C43)OC2=C1)C.[Cl-]