| Identification | Back Directory | [Name]
C.I. Acid Red 81 | [CAS]
6846-33-9 | [Synonyms]
C.I.68200
Acid Red 81
C.I. Acid Red 81
C.I.Acid Red 81:C.I.68200
4-[(2,7-Dihydro-3-methyl-2,7-dioxo-3H-dibenz[f,ij]isoquinolin-6-yl)amino]benzenesulfonic acid sodium salt | [Molecular Formula]
C23H15N2NaO5S | [MOL File]
6846-33-9.mol | [Molecular Weight]
454.43 |
| Hazard Information | Back Directory | [Preparation]
1-Bromo-4-(N-methylacetamido)anthraquinone?condensation into 6-Bromo-3-methyl-3H-naphtho[1,2,3-de]quinoline-2,7-dione, then with aniline condensation, again with hair smoke sulphonated sulfuric acid, and translated into sodium salt. | [Properties and Applications]
colourful red blue light. Soluble in alcohol. The strong sulfuric acid for blue-ray red, diluted into pink.
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Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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5-6
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3
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3-4
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3
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2-3
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3-4
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