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5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid]

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5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid] Basic information
Product Name:5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid]
Synonyms:5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid];C.I.43865;C.I.Mordant Violet 16;5-[(3-carboxy-4-hydroxy-5-methylphenyl)-(3-carboxy-5-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]-2-hydroxy-3-methylbenzoic acid;Mordant Violet 16;C.I.Mordant Violet 16:C.I.43865;Benzoic acid, 3,3'-[(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[6-hydroxy-5-methyl-
CAS:2947-64-0
MF:C25H20O9
MW:464.42
EINECS:
Product Categories:
Mol File:2947-64-0.mol
5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid] Structure
5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid] Chemical Properties
Boiling point 744.5±60.0 °C(Predicted)
density 1.515±0.06 g/cm3(Predicted)
pka2.26±0.20(Predicted)
Safety Information
MSDS Information
5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid] Usage And Synthesis
Preparation(a) 2-Hydroxy-3-methyl-5-formylbenzoic acid (1 Moore) and 2-Hydroxy-3-methylbenzoic acid (2 Moore) condensation, the product with Nitrosylsulfuric acid oxidation; (b) Formaldehyde (1 Moore) and 2-Hydroxy-3-methylbenzoic acid (2 Moore) condensation, its product in Nitrosylsulfuric acid with 2-Hydroxy-3-methylbenzoic acid common oxidation.
Properties and Applicationsbrilliant red light purple. Soluble in water for brilliant orange red, soluble in ethanol for magenta. In concentrated sulfuric acid to orange, dilution still for wheat color. Dye aqueous solution to join sodium hydroxide as brilliant magenta.
Standard Ironing Fastness Light Fastness Fulling Persperation Fastness Soaping Water
Alkali Acid
ISO 4 4 5 5 4
AATCC 4-5 4-5 2-3 4-5
5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid] Preparation Products And Raw materials
Raw materials5-formyl-3-methylsalicylic acid-->Formaldehyde-->3-Methylsalicylic acid
Tag:5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid](2947-64-0) Related Product Information
Benzoic acid, 5-[(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)[4-[(4-methylphenyl)amino]phenyl]methyl]-2-hydroxy-3-methyl-, sulfite (salt) Mordant Violet 12 N-[4-[(3-Carboxy-4-hydroxy-6-sulfonato-1-naphthalenyl)[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methylmethanaminium 5-[(3-Carboxy-4-hydroxyphenyl)(3-carboxy-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-2-hydroxy-3-methylbenzoic acid Mordant Violet 23 Mordant Violet 2 GALLEIN 5-[(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)[4-[(4-tolyl)amino]phenyl]methyl]-3-methylsalicylic acid 5,5'-[4-(dimethylamino)benzylidene]bis(3-methylsalicylic) acid