| Catalogue Number： | D492950 |
| Chemical Name： | Direct Blue 6 (Technical Grade) |
| Synonyms | 3,3'-[[1,1'-Biphenyl]-4,4'-diylbis(azo)]bis[5-amino-4-hydroxy-,7-naphthalenedisulfonic Acid Tetrasodium Salt; C.I. Direct Blue 6; C.I. Direct Blue 6 Tetrasodium Salt; Airedale Blue 2BD; Aizen Direct Blue 2BH; Amanil Blue 2BX; Atlantic Blue 2B; Atul Direct Blue 2B; Azocard Blue 2B; Azomine Blue 2B; Belamine Blue 2B; Bencidal Blue 2B; Benzanil Blue 2B; Benzo Blue 2B; Benzo Blue BBA-CF; Benzo Blue BBN-CF; Benzo Blue GS; Blue 2B; Blue 2B salt; Brasilamina Blue 2B; C.I. 22610; Calcomine Blue 2B; Chloramine Blue 2B; Chlorazol Blue B; Chlorazol Blue BP; Chrome Leather Blue 2B; Cresotine Blue 2B; Diacotton Blue BB; Diamine Blue; Diamine Blue 2B; Diamine Blue BB; Diaphtamine Blue BB; Diazine Blue 2B; Diazol Blue 2B; Diphenyl Blue 2B; Diphenyl Blue KF; Diphenyl Blue M 2B; Direct Blue 2B; Direct Blue |
| CAS Number | 2602-46-2 |
| Alternate CAS # | Free Base: 16780-28-2 |
| Molecular Formula： | C₃₂H₂₀N₆Na₄O₁₄S₄ |
| Appearance | Very Dark Blue to Black Solid |
| Molecular Weight | 932.74 |
| Storage | Refrigerator |
| Solubility | Methanol (Slightly), Water (Slightly) |
| Category | Standards; Dyes; |
| Applications | Direct Blue 6 is a deep blue azo dye used in textiles however contributes to environmental pollution and potentially reproductive toxicity. Environmental toxin on US EPA Toxic Release Inventory list (TRI) list. |
| References | Wu, S. et al.: Chem. Res. Toxicol., 26, 1840 (2013); Wang, P. et al.: J. Alloys. Comp., 701, 759 (2017); |
