N-(2,5-Dimethoxyphenyl)-2-hydroxydibenzofuran-3-carboxamide
N-(2,5-Dimethoxyphenyl)-2-hydroxydibenzofuran-3-carboxamide
CAS: 132-62-7
Molecular Formula: C21H17NO5
N-(2,5-Dimethoxyphenyl)-2-hydroxydibenzofuran-3-carboxamide - Names and Identifiers
| Name | N-(2,5-Dimethoxyphenyl)-2-hydroxydibenzofuran-3-carboxamide |
| Synonyms | NSC50560 Naphthol As-Bt Naphthol AS-DB (C.I. 37605) Azoic Coupling Component 16 Azoic Acid Component 16 (37605) 2-hydroxy-2',5'-dimethoxydibenzofuran-3-carboxanilide N-(2,5-Dimethoxyphenyl)-2-hydroxydibenzofuran-3-carboxamide N-(2,5-dimethoxybenzene-1-yl)-4-hydroxy-3-dibenzofuranamide |
| CAS | 132-62-7 |
| EINECS | 205-069-2 |
N-(2,5-Dimethoxyphenyl)-2-hydroxydibenzofuran-3-carboxamide - Physico-chemical Properties
| Molecular Formula | C21H17NO5 |
| Molar Mass | 363.36 |
| Physical and Chemical Properties | Gray white powder, melting point 217 ℃. Soluble in pyridine, insoluble in water and sodium carbonate solution, yellow in sulfuric acid and yellow in sodium hydroxide solution. |
N-(2,5-Dimethoxyphenyl)-2-hydroxydibenzofuran-3-carboxamide - References
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | is mainly used as a priming agent for dyeing and printing of cotton and viscose fabrics. |
| production method | O-chloroaniline, p-benzoquinone and 2, 5-dimethoxyaniline are used as main raw materials. After diazotization with O-chloroaniline, it is condensed with p-benzoquinone, and then reduced by sodium hydrosulfite, closed-loop by the action of potassium hydroxide, carboxylated by carbon dioxide, and then with the participation of phosphorus trichloride, 5-dimethoxyaniline is condensed, then neutralized with sodium carbonate, distilled off chlorobenzene, and finally filtered and dried to obtain a finished product. Product requirements of phenol content is greater than or equal to 94%, melting point is greater than or equal to 213. Raw material consumption (kg/t) O-chloroaniline (98%) 1060 p-benzoquinone (99%) 6202, 5-dimethoxyaniline (99%) 500 sodium nitrite (90%) 500 hydrochloric acid (30%) 2500 phosphorus trichloride (95%) 235 sodium bicarbonate 1200 sodium hydrosulfite (85%) 1650 potassium hydroxide (90%) 1100 |
Last Update：2024-04-09 21:01:54
