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| | CROCEIN SCARLET 7B Basic information |
| Product Name: | CROCEIN SCARLET 7B | | Synonyms: | CI 27165;CI NO 27165;ACID RED 71;ACID ORANGE 12;CROCEIN SCARLET 7B C.I. NO. 27165;1-Naphthalenesulfonic acid, 7-hydroxy-8-2-methyl-4-(2-methyl-4-sulfophenyl)azophenylazo-, disodium salt;C.I. ACID RED 71);7-Hydroxy-8-[[2-methyl-4-[(2-methyl-4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt | | CAS: | 6226-76-2 | | MF: | C24H18N4Na2O7S2 | | MW: | 584.53 | | EINECS: | 612-981-8 | | Product Categories: | | | Mol File: | 6226-76-2.mol |  |
| | CROCEIN SCARLET 7B Chemical Properties |
| Melting point | 181-188℃ | | form | Powder | | Colour Index | 27165 | | Water Solubility | Soluble in water |
| | CROCEIN SCARLET 7B Usage And Synthesis |
| Uses | Crocein Scarlet 7B is used in Crowle’s reagent. The reagent is needed for observing latent fingerprints, particularly bloody prints. Dyes and metabolites. | | Preparation | 2′,3-Dimethyl-4-amino-4′-sulfoazobenzene?diazo, and 7-Hydroxynaphthalene-1-sulfonic acid coupling. | | Properties and Applications | red. Soluble in water for product red, soluble in ethanol for red orange. The strong sulfuric acid for blue, pink is diluted. In water solution to join strong hydrochloric acid for product red; Add thick sodium hydroxide solution for shallow red sauce.
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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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2-3
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2-3
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2
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1
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2-3
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| | CROCEIN SCARLET 7B Preparation Products And Raw materials |
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