| 中文名 | 直接黑19 |
| 英文名 | Direct Black 19 |
| 别名 | 直接黑 19 4-氨基-3,6-双[[4-[(2,4-二氨基苯基)偶氮]苯基]偶氮]-5-羟基萘-2,7-二磺酸二钠盐 直接耐晒黑G C.I.直接黑19 直接耐晒黑 直接耐晒黑L-3BG |
| 英文别名 | C.I. 35255 C.I. Direct Black 19 C.I. Direct Black 19 (VAN) C.I. Direct Black 19, disodium salt Direct Fast Black G C.I.Direct Black 19 disodium (3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate (3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid |
| CAS | 6428-31-5 |
| EINECS | 229-208-1 |
| 化学式 | C34H27N13Na2S2O7 |
| 分子量 | 839.77 |
| inchi | InChI=1/C34H29N13O7S2.2Na/c35-18-1-11-26(24(37)15-18)44-40-20-3-7-22(8-4-20)42-46-32-28(55(49,50)51)13-17-14-29(56(52,53)54)33(34(48)30(17)31(32)39)47-43-23-9-5-21(6-10-23)41-45-27-12-2-19(36)16-25(27)38;;/h1-16,48H,35-39H2,(H,49,50,51)(H,52,53,54);;/q;2*+1/p-2/b44-40+,45-41+,46-42+,47-43+; |
| 密度 | 1.727g/cm3 |
| 折射率 | 1.817 |