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| C.I. Acid Red 81 Basic information |
Product Name: | C.I. Acid Red 81 | Synonyms: | C.I. Acid Red 81;4-[(2,7-Dihydro-3-methyl-2,7-dioxo-3H-dibenz[f,ij]isoquinolin-6-yl)amino]benzenesulfonic acid sodium salt;C.I.68200;C.I.Acid Red 81:C.I.68200;Acid Red 81 | CAS: | 6846-33-9 | MF: | C23H15N2NaO5S | MW: | 454.43037 | EINECS: | | Product Categories: | | Mol File: | 6846-33-9.mol | |
| C.I. Acid Red 81 Chemical Properties |
| C.I. Acid Red 81 Usage And Synthesis |
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.
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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| C.I. Acid Red 81 Preparation Products And Raw materials |
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