| Identification | Back Directory | [Name]
CI 50325 | [CAS]
6837-46-3 | [Synonyms]
CI 50325
C.I.Acid Violet 50
Acid Fast Violet B
Acid Violet 50 sodium salt
(71839-03-7) acid violet 50
C.I.Acid Violet 50:C.I.50325
9-Amino-11-methoxy-7-phenyl-5-phenylamino-4-sulfonato-8-sodiosulfobenzo[a]phenazin-7-ium
9-Amino-11-methoxy-7-phenyl-5-(phenylamino)-4,8-disulfobenzo[a]phenazinium inner salt sodium salt | [Molecular Formula]
C29H23N4NaO7S2 | [MOL File]
6837-46-3.mol | [Molecular Weight]
626.63 |
| Hazard Information | Back Directory | [Preparation]
6,8-Bis(phenylamino)naphthalene-1-sulfonic acid?and 2,5-Diamino-4-methoxybenzenesulfonic acid condensation, and then product (add) ammonia in the cuprous oxide catalyst for the air oxidation. | [Synthesis]
Wool Fast Violet B 21, C.I. 50 325 [6837-46- 3], from 1,3-bis(phenylamino)naphthalene-8- sulfonic acid and 2-methoxy-1,4-phenylenediamine- 5-sulfonic acid proceeds differently. In the cyclization step the methoxyl group is split off as methanol. Therefore, the dye can also be synthesized from 1,4-phenylenediamine-2-sulfonic acid.
| [Properties and Applications]
blue purple. Soluble in water and ethanol for red light purple. The strong sulfuric acid for green, purple for red after diluted. In water solution is a deep red to join sodium hydroxide, and precipitation.
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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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3
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3-4
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4
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4
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3-4
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