| Direct Blue 218 is an azo dye used in diagnostic imaging. Used in the prediction of rat carcinogenisis. Also used in textile dyes contributing to textile effluents and wastewaters. Environmental toxin on US EPA Toxic Release Inventory list (TRI) list. Synonyms: [Tetrahydrogen-3,3-[(3,3-dihydroxy-4,4-biphenylylene)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonato](4-)]di-Copper Tetrasodium Salt, [µ-[[3,3-[(3,3-Dihydroxy[1,1-biphenyl]-4,4-diyl)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonato]](8-)]]di-Cuprate(4-) Tetrasodium, [µ-[[3,3-[[3,3-Di(hydroxy-kappaO)[1,1-biphenyl]-4,4-diyl]bis(azo-kappaN1)]bis[5-amino-4-(hydroxy-kappaO)-2,7-naphthalenedisulfonato]](8-)]]di-Cuprate(4-) Tetrasodium, 3,3-[(3,3-Dihydroxy[1,1-biphenyl]-4,4-diyl)bis(azo)]bis[5-amino-4-hydroxy-2,7-Naphthalenedisulfonic Acid Copper Complex, Amanil Supra Blue 9GL, C.I. 24401, Carta Blue VP, Direct Blue 218, Fastusol Blue 9GLP, Intralite Blue 8GLL, Pontamine Bond Blue B, Pontamine Fast Blue 7GLN CAS No: 28407-37-6 Free Base: 289915-32-8 Molecular Formula: C32H16Cu2N6Na4O16S4 Molecular Weight: 1087.81 Purity: Purified Appearance: Black solid Solubility: DMSO (Slightly), Water (Slightly) Method for Determining Identity: Proton NMR, FT-IR Spectrometric Analysis TLC Conditions: C18, Acetonitrile: Acetic Acid=9:1, Visualized with AMCS and Naked Eye, Single Spot, Rf=0.75 Elemental Analysis: Calculated: %C: 35.33, %H: 1.48, %N: 7.73 Storage and Stability: May be stored at RT for short-term only. Long-term storage is recommended at 4C for 6 months after receipt. |
