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Mordant Red 7
Mordant Red 7
/ CAS : 3618-63-1| Appearance | Blue light red pulverulent. Soluble in water and slightly soluble in ethanol and acetone. Its aqueous solution turns yellow to brown light red, with dilute sulfuric acid to red light orange; The concentrated alkali turned bright red. Rose red in concentrated sulfuric acid, turning orange upon dilution; The color disappeared in concentrated nitric acid. Exposure to copper, iron and chromogenic light changes during staining. | Formula | C20H15N4NaO5S | Molecular Mass | 446.41200 |
| HS | 32041200 | UN | 0 | DG Class | 0 |
| Synonyms | Eriochrome Red B; Superchrome Red Ecb; Chrome Red; Acid Chrome Red; Fenakrom Red B; Ci No 18760; 1-Naphthalenesulfonic Acid, 4-[2-(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Diazenyl]-3-Hydroxy-, Sodium Salt (1:1); Chrome Fast Red B; Ci 18760; 1-Naphthalenesulfonicacid,4-[(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Azo]-3-Hydroxy-,Monosodiumsalt; Eriochromered; Acid Chrome Bordeaux Bn | ||||
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