Direct Red 31
[CAS 5001-72-9]

Identification

• Classification: Dyes and pigments >> Dyes >> Direct dye
• Name: Direct Red 31
• Synonyms: Aizen Direct Rhoduline Red BH; Amanil Rhoduline Red B; Atlantic Brilliant Red 12B; Atul Direct Red 12B; Azine Fast Red 12BK; Belamine Fast Pink G; 7,7'-Iminobis[4-hydroxy-3-(2-phenyldiazenyl)-2-naphthalenesulfonic acid sodium salt
• Molecular Formula: C₃₂H₂₁N₅O₈S₂.₂Na
• Molecular Weight: 713.65
• CAS Registry Number: 5001-72-9
• EC Number: 225-669-8