3-[(3-Carboxy-4-hydroxy-5-methylphenyl)(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-6-hydroxy-2,4-dimethylbenzoic acid

CAS No.
2305-53-5
Chemical Name:
3-[(3-Carboxy-4-hydroxy-5-methylphenyl)(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-6-hydroxy-2,4-dimethylbenzoic acid
Synonyms
C.I.43870;Mordant Violet 33;Chromoxan violet S;Chromoxane Violet 5B;C.I.Mordant Violet 33;C.I.Mordant Violet 33:C.I.43870;3-[(3-Carboxy-4-hydroxy-5-methylphenyl)(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-6-hydroxy-2,4-dimethylbenzoic acid;Benzoic acid, 3-[(3-carboxy-4-hydroxy-5-methylphenyl)(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-6-hydroxy-2,4-dimethyl-
CBNumber:
CB22385732
Molecular Formula:
C26H22O9
Molecular Weight:
478.45
MDL Number:
MOL File:
2305-53-5.mol

3-[(3-Carboxy-4-hydroxy-5-methylphenyl)(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-6-hydroxy-2,4-dimethylbenzoic acid Chemical Properties,Uses,Production

Preparation

Formaldehyde (1 Moore) and 2-Hydroxy-3-methylbenzoic acid (2 Moore) condensation, its product in Nitrosylsulfuric acid with 2-Hydroxy-4,6-dimethylbenzoic acid?common oxidation.

Properties and Applications

dark blue purple. Soluble in water for wine red, soluble in ethanol for red wine. In concentrated sulfuric acid for brilliant product red, red orange after diluted. Dye aqueous solution to join sodium hydroxide as wine red.

Standard Ironing Fastness Light Fastness Fulling Persperation Fastness Soaping Water
Alkali Acid
ISO 5 4 4 4 5 4-5 5

3-[(3-Carboxy-4-hydroxy-5-methylphenyl)(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-6-hydroxy-2,4-dimethylbenzoic acid Preparation Products And Raw materials

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3-[(3-Carboxy-4-hydroxy-5-methylphenyl)(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-6-hydroxy-2,4-dimethylbenzoic acid C.I.43870 C.I.Mordant Violet 33 Chromoxane Violet 5B Chromoxan violet S Benzoic acid, 3-[(3-carboxy-4-hydroxy-5-methylphenyl)(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-6-hydroxy-2,4-dimethyl- C.I.Mordant Violet 33:C.I.43870 Mordant Violet 33 2305-53-5