21784-71-4
21784-71-4 structure
- Name: 2H-1-Benzopyran-2-one,7,8-bis(acetyloxy)-
- Chemical Name: (8-acetyloxy-2-oxochromen-7-yl) acetate
- CAS Number: 21784-71-4
- Molecular Formula: C13H10O6
- Molecular Weight: 262.21500
- Create Date: 2016-09-16 08:15:48
- Modify Date: 2024-06-19 18:34:09
| Name | (8-acetyloxy-2-oxochromen-7-yl) acetate |
|---|---|
| Synonyms |
Diacetyl-daphnetin
Daphnetindiacetat 7,8-diacetoxy-chromen-2-one 7,8-Diacetoxy-cumarin 7,8-diacetoxy-coumarin DAPHNETIN DIACETATE 7,8-diacetoxy-4-methylcoumarin |
| Density | 1.363g/cm3 |
|---|---|
| Boiling Point | 445.7ºC at 760mmHg |
| Molecular Formula | C13H10O6 |
| Molecular Weight | 262.21500 |
| Flash Point | 201.5ºC |
| Exact Mass | 262.04800 |
| PSA | 82.81000 |
| LogP | 1.64360 |
| Vapour Pressure | 3.86E-08mmHg at 25°C |
| Index of Refraction | 1.562 |
| HS Code | 2932209090 |
|---|
|
~%
21784-71-4 |
| Literature: Gattermann; Koebner Chemische Berichte, 1899 , vol. 32, p. 287 |
|
~%
21784-71-4 |
| Literature: Stuenkel Chemische Berichte, 1879 , vol. 12, p. 112 |
|
~%
21784-71-4 |
| Literature: Gandini Gazzetta Chimica Italiana, 1940 , vol. 70, p. 611,613 |
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |