China Suppliers > NEW DRAGON CO., LTD > DIRECT BLACK 19
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- Region :China/Zhejiang
- Tel : +86-574-87716276 87721076 87703994
- Fax : +86-574-87715576
- Email :information@newdragondyes.com
- URL :www.newdragondyes.com
- Add :RM.1909-1910 VENTURE TOWER,NO.16 BUZHENGXIANG HAISHU DISTRICT,NINGBO,CHINA
- Details for DIRECT BLACK 19
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DIRECT BLACK 19
Category : Dyestuffs and Pigments
CAS NO : 6428-31-5 EC NO : 229-208-1 MF : C34H27N13Na2S2O7 MW : 839.77 Synonyms : 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; Molecular Structure : 
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