C.I. Disperse Red 86 (8CI)
N-(4-amino-9,10-dihydro-3-methoxy-9,10-dioxo-1-anthryl)-4-methylbenzenesulphonamide
CAS: 81-68-5
Molecular Formula: C22H18N2O5S
C.I. Disperse Red 86 (8CI) - Names and Identifiers
| Name | N-(4-amino-9,10-dihydro-3-methoxy-9,10-dioxo-1-anthryl)-4-methylbenzenesulphonamide |
| Synonyms | DISPERSE RED 86 C.I.DISPERSERED86 Disperse Red H-GLN C.I. Disperse Red 86 C.I. Disperse Red 86 (8CI) 1-amino-2-methoxy-4-p-tolylsulfonamidoanthraquinone N-(4-amino-9,10-dihydro-3-methoxy-9,10-dioxo-1-anthryl)-4-methylbenzenesulphonamide N-(4-Amino-9,10-dihydro-3-methoxy-9,10-dioxo-1-anthracenyl)-4-methyl-benzenesulfonamide Benzenesulfonamide, N-(4-amino-9,10-dihydro-3-methoxy-9,10-dioxo-1-anthracenyl)-4-methyl- |
| CAS | 81-68-5 |
| EINECS | 201-369-2 |
| InChI | InChI=1/C22H18N2O5S/c1-12-7-9-13(10-8-12)30(27,28)24-16-11-17(29-2)20(23)19-18(16)21(25)14-5-3-4-6-15(14)22(19)26/h3-11,24H,23H2,1-2H3 |
C.I. Disperse Red 86 (8CI) - Physico-chemical Properties
| Molecular Formula | C22H18N2O5S |
| Molar Mass | 422.45 |
| Density | 1.453 |
| Boling Point | 691.4±65.0 °C(Predicted) |
| Water Solubility | 3.26mg/L at 20℃ |
| Vapor Presure | 0Pa at 25℃ |
| pKa | 8.41±0.20(Predicted) |
| Physical and Chemical Properties | Pink powder. |
C.I. Disperse Red 86 (8CI) - Reference Information
| LogP | 1.98 at 20℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | disperse red 86(C.I. Discerse Red 86) for dyeing of polyester and its blended fabrics, can also be used for dyeing of triacetate and nylon, the hue is Blue pink. |
| preparation | CN200710190914.9 a method for preparing disperse red 86(C.I. Discpersered86) to improve the synthesis process, the synthesis of disperse red 86(C.I. The process of discpersered86) was studied, and the process of separating and washing with methanol was proposed to replace the original process of water separation and washing, the mother liquor and the washed methanol solution after filtration and separation of the product can recover part of the methanol by distillation, and the solution (containing potassium hydroxide and methanol) after distilling and recovering part of the methanol can be reacted with the intermediate again, the methanol and potassium hydroxide can be reused, the amount of wastewater is reduced, and the methanol and potassium hydroxide are reused, and the cost is reduced. Specific embodiments: 1. To the reaction kettle were added 900 L of methanol, 300kg of potassium hydroxide and 120kg of 1-amino -2 sulfonic acid group -4-p-toluenesulfonamido -9, 10-anthraquinone. 2. Slowly warm up to reflux, heat preservation for 8 hours, point plate control end point. 3. When the end point is reached, the temperature is lowered to below 60 degrees Celsius, and 900 liters of methanol is added dropwise for isolation, and the isolation time is about 2 hours. 4. After lowering to room temperature, it is filtered, washed twice with 500 L of methanol, and dried to obtain 90kg of the product. 5. The mother liquor and the washed methanol enter the distillation and concentration kettle, After concentration of a portion of the methanol, it may be reacted again with 1-amino -2 sulphonyl-4-p-toluenesulfonylamino-9, 10-anthraquinone. |
| Application | disperse pink R3L is mainly used for dyeing and printing of polyester and its blended fabrics, it can also be used for the dyeing of triacetate fiber and nylon. dyeing for polyester fiber |
| production method | with bromamine acid as the main raw material, it is first condensed with P-toluenesulfonamide, the product is then obtained by methoxylation with methanol under basic conditions. The final product was obtained by filtration, grinding and drying.. Add 10kg of bromamine acid (100%), 5kg of p-toluenesulfonamide (content not less than 98%), 98% kg of copper sulfate (more than 99%), 97±1kg of potassium carbonate () to the condensation pan and heat to (). The reaction was carried out for 12h at 2 °c, cooled to 30 °c, filtered, and the filter cake was washed with 2% saline until neutral, and dried to obtain about 13kg of condensation product (I). 15kg of the condensation product (I), 35.6kg of potassium hydroxide and 71.5kg of Methanol (industrial product) were added to the reaction pan, and the temperature was raised to 87-89 ° C. And the mixture was refluxed for 4 hours. The temperature was lowered to 30 °c, diluted with 100kg of water, filtered, washed with hot water at 80 °c until neutral, and dried to give about 11kg of product. |
Last Update：2024-04-09 15:16:53
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View History
C.I. Disperse Red 86 (8CI)
Menthoxypropanediol
CREATINE HYDROCHLORIDE
C(RGDf-Me-V)
TIN(+2)FLUORIDE
ISOPROPENYL CYANIDE
Acid Red 211
Ethylone
2-Fluoro-3-nitropyridine
Menthoxypropanediol
CREATINE HYDROCHLORIDE
C(RGDf-Me-V)
TIN(+2)FLUORIDE
ISOPROPENYL CYANIDE
Acid Red 211
Ethylone
2-Fluoro-3-nitropyridine