direct red 31 5001-72-9, China direct red 31 5001-72-9 Manufacturers, China direct red 31 5001-72-9 Suppliers

direct red 31

Category :

Dyestuffs and Pigments

EC NO : 225-669-8

Molecular Formula : C₃₂H₂₁N₅Na₂O₈S₂

Main Specifications :

Synonyms : C.I.Direct Red 31;Disodium 7,7'-iminobis(4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate);Direct Pink 5B;2-Naphthalenesulfonic acid, 7,7'-iminobis(4-hydroxy-3-(2-phenyldiazenyl)-, sodium salt (1:2);2-Naphthalenesulfonic acid, 7,7'-iminobis(4-hydroxy-3-(2-;EINECS 225-669-8;2-Naphthalenesulfonic acid, 7,7'-iminobis(4-hydroxy-3-(phenylazo)-, disodium salt;disodium (3E,3'E)-7,7'-iminobis[4-oxo-3-(2-phenylhydrazinylidene)-3,4-dihydronaphthalene-2-sulfonate];

Molecular Structure:

Send your inquiry to direct red 31 supplier

Company：	Hebei Dongguang Chemical No.2 Factory
Contact：
Phone：	86-317-7766011,7723757,7766082
Mobile phone：
Fax：	86-317-7766262,7692787
E-mail：	dgerh21@21cn.com
Website：	http://www.dgchem.com
Address：	South of the Nanxiakou Railway Station, Dongguang Hebei
Zip Code：	061600