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
4-(Dimethylamino)tetrahydro-2H-pyran-4-carbonitrile 4-AMINO-TETRAHYDRO-PYRAN-4-CARBOXYLIC ACID 4-Aminotetrahydropyran-4-carbonitrile Hydrochloride (R)-3-Aminobutanenitrile Hydrochloride 4-AMINO-TETRAHYDRO-PYRAN-4-CARBOXYLIC ACID HCL 3-((Dimethylamino)methyl)-5-methylhexan-2-one oxalate 5-Bromo-2-nitropyridine Nimesulide BP Aceclofenac IP/BP/EP Diclofenac Sodium IP/BP/EP/USP Mefenamic Acid IP/BP/EP/USP Ornidazole IP Diclofenac Potassium SODIUM AAS SOLUTION ZINC AAS SOLUTION BUFFER SOLUTION PH 10.0(BORATE) GOOCH CRUCIBLE SINTERED AQUANIL 5 BERYLLIUM AAS SOLUTION Methylcobalamin (vitamin B12) SODIUM METHYL PARABEN SODIUM VALPROATE AMOXICILLIN (AMOXYCILLIN) TRIHYDRATE ACICLOVIRRelated 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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