About Direct Black 19
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Direct Black 19
Product Name: Direct Black 19
Synonyms:88694 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; Direct Black G
CAS RN.: 6428-31-5
EINECS: 229-208-1 Molecular Weight: 839.77 Molecular Formula: C34H27N13Na2S2O7 Density: 1.727g/cm3 refractive_index: 1.817 Hazard Symbols: Add Details 
Risk Codes:Add Details Safety Description: Add Details 
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