5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid]
- CAS NO.：2947-64-0
- Empirical Formula: C25H20O9
- Molecular Weight: 464.42
- SAFETY DATA SHEET (SDS)
![5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid] Structural](https://img.chemicalbook.in/CAS/GIF/2947-64-0.gif)
What is 5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid]?
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 Applications
brilliant 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 | |||
Properties of 5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid]
| Boiling point: | 744.5±60.0 °C(Predicted) |
| Density | 1.515±0.06 g/cm3(Predicted) |
| pka | 2.26±0.20(Predicted) |
Safety information for 5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid]
Computed Descriptors for 5,5'-[(3-Carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methylene]bis[2-hydroxy-3-methylbenzoic acid]
New Products
(S)-3-Aminobutanenitrile hydrochloride 4-Methylphenylacetic acid N-Boc-D-alaninol N-BOC-D/L-ALANINOL Tert-butyl bis(2-chloroethyl)carbamate 3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin- 2(1H)-one Furan-2,5-Dicarboxylic Acid Tropic acid S-2-CHLORO PROPIONIC ACID ETHYL ISOCYANOACETATE 2-Bromo-1,3-Bis(Dimethylamino)Trimethinium Hexafluorophosphate 4-IODO BENZOIC ACID 3-NITRO-2-METHYL ANILINE 1-(2,4-DICHLOROPHENYL) ETHANAMINE (2-Hydroxyphenyl)acetonitrile 4-Bromopyrazole 5,6-Dimethoxyindanone 2-(Cyanocyclohexyl)acetic acid 4-methoxy-3,5-dinitropyridine 1-(4-(aminomethyl)benzyl)urea hydrochloride 2-aminopropyl benzoate hydrochloride diethyl 2-(2-((tertbutoxycarbonyl)amino) ethyl)malonate tert-butyl 4- (ureidomethyl)benzylcarbamate Ethyl-2-chloro((4-methoxyphenyl)hydrazono)acetateRelated products of tetrahydrofuran
![5,5'-[4-(dimethylamino)benzylidene]bis(3-methylsalicylic) acid](https://img.chemicalbook.in/CAS/20180906/GIF/10143-03-0.gif)
![5-[(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)[4-[(4-tolyl)amino]phenyl]methyl]-3-methylsalicylic acid](https://img.chemicalbook.in/CAS/GIF/5852-33-5.gif)
![5-[(3-Carboxy-4-hydroxyphenyl)(3-carboxy-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-2-hydroxy-3-methylbenzoic acid](https://img.chemicalbook.in/CAS/GIF/10142-99-1.gif)
![N-[4-[(3-Carboxy-4-hydroxy-6-sulfonato-1-naphthalenyl)[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methylmethanaminium](https://img.chemicalbook.in/CAS/GIF/6797-96-2.gif)
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