direct blue 218
post date: dec 15,2021 expiry date: jun 13,2022 detailed description: cas no. :10401-50-0 cas registry number: 10401-50-0 synonyms: ;sodium (3e,3’e)-3,3′-[(3,3′-dihydroxybiphenyl-4,4′-diyl)di(1e)hydrazin-2-yl-1-ylidene]bis(5-amino-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate) copper (4:1:2); molecular formula: c32h20cu2n6na4o16s4 molecular weight: 1091.8429 molecular structure:
