ChemNet > CAS > 5001-72-9 Direct Red 31

5001-72-9 Direct Red 31

product Name	Direct Red 31
CAS No	5001-72-9
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 Formula	C₃₂H₂₁N₅Na₂O₈S₂
Molecular Weight	713.6474
InChI	InChI=1/C32H23N5O8S2.2Na/c38-31-25-13-11-23(15-19(25)17-27(46(40,41)42)29(31)36-34-21-7-3-1-4-8-21)33-24-12-14-26-20(16-24)18-28(47(43,44)45)30(32(26)39)37-35-22-9-5-2-6-10-22;;/h1-18,33-35H,(H,40,41,42)(H,43,44,45);;/q;2*+1/p-2/b36-29-,37-30-;;
EINECS	225-669-8
Molecular Structure
Hazard Symbols
Risk Codes
Safety Description

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