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Direct Red 31

Direct Red 31

Category :

Dyestuffs and Pigments

CAS NO : 5001-72-9
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];
Direct Red 31
Molecular Structure:Direct Red 31 5001-72-9
If you are sourcing Direct Red 31 from China ,just feel free to inquire
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