ChemicalBook Product Catalog Dyes and Pigments dye Direct Dyes Direct Red 31

Direct Red 31

Direct Red 31 Basic information
Product Name:Direct Red 31
Synonyms:7,7'-iminobis[4-hydroxy-3-(phenylazo)-2-naphthalenesulfonic aci disodium sa;Benzo Rhoduline Red B;C.I. Direct red 31;C.I.Direct Red 31(29100);Chloramine Rose B,Pyrazol Pink 2B;Diphenyl Red RW;Direct pink;Nippon Fast Red 2B
CAS:5001-72-9
MF:C32H21N5Na2O8S2
MW:713.64738
EINECS:225-669-8
Product Categories:Organics;Dyes and Pigments
Mol File:5001-72-9.mol
Direct Red 31 Structure
Direct Red 31 Chemical Properties
EPA Substance Registry System2-Naphthalenesulfonic acid, 7,7'-iminobis[4-hydroxy-3-(phenylazo)-, disodium salt (5001-72-9)
Safety Information
MSDS Information
Direct Red 31 Usage And Synthesis
Properties and Applications

Standard

Acid Resistance

Alkali Resistance

Light Fastness

Soaping

Water

Fading

Stain

Fading

Stain

ISO

3-4

4

2

1-2

1-2

AATCC

3-4

4

1

1

1-2

Direct Red 31 Preparation Products And Raw materials
Raw materialsJ acid-->5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
Aluminum acetylacetonate METHYL ISOCYANOACETATE N-BUTYLISOCYANIDE PHENYLSELENOL Tris(2,4-pentanedionato)chroMiuM(III) DICHLORO(ETHYLENEDIAMINE)PLATINUM(II) SALCOMINE 2,4-PENTANEDIONE, SILVER DERIVATIVE 1,1,3,3-TETRAMETHYLBUTYL ISOCYANIDE Tosylmethyl isocyanide COBALT(II) ACETYLACETONATE Cupric acetylacetonate Ethyl isocyanoacetate TERT-BUTYL ISOCYANIDE Ferric acetylacetonate COBALT ETHYLENE DIAMINE CHLORIDE Benzyl isocyanide TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)DYSPROSIUM(III)
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