Direct Black 19 6428-31-5, China Direct Black 19 6428-31-5 Manufacturers, China Direct Black 19 6428-31-5 Suppliers

Direct Black 19

Category :

Dyestuffs and Pigments

EC NO : 229-208-1

Molecular Formula : C₃₄H₂₇N₁₃Na₂S₂O₇

Main Specifications :

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:

If you are sourcing Direct Black 19 from China ,just feel free to inquire

Company：	Hangzhou Dingsheng Chemical Co ., Ltd.
Contact：
Phone：	+86-571-85284775 85284792
Mobile phone：
Fax：	+86-571-85183620
E-mail：	sharpchem@vip.sina.com
Website：	http://
Address：	Room 912, 2 Tents,Binjiang Xincheng Times Square,No.189 Fengqi Rd., Hangzhou,China
Zip Code：	310009