1983-81-9
1983-81-9 structure
- Name: 2H-1-Benzopyran-2-one,4,7-dihydroxy-
- Chemical Name: 4,7-dihydroxychromen-2-one
- CAS Number: 1983-81-9
- Molecular Formula: C9H6O4
- Molecular Weight: 178.14200
- Create Date: 2018-05-15 08:00:00
- Modify Date: 2025-08-20 20:01:38
| Name | 4,7-dihydroxychromen-2-one |
|---|---|
| Synonyms |
4,7-dihydroxy-2H-1-benzopyran-2-one
4,7-Dihydroxycoumarin Coumarin,4,7-dihydroxy 4,7-dihydroxy-2H-chromen-2-one 4,7-Dihydroxy-cumarin 4,7-Dihydroxy-coumarin 4,7-dihydroxy-chromen-2-one 4,7-Dihydroxy-2-oxo-2H-1-benzopyran 2H-1-BENZOPYRAN-2-ONE,4,7-DIHYDROXY 2,7-dihydroxychromen-4-one |
| Density | 1.612g/cm3 |
|---|---|
| Boiling Point | 390ºC at 760mmHg |
| Melting Point | 263 °C(dec.) |
| Molecular Formula | C9H6O4 |
| Molecular Weight | 178.14200 |
| Flash Point | 166.5ºC |
| Exact Mass | 178.02700 |
| PSA | 70.67000 |
| LogP | 1.20420 |
| Vapour Pressure | 0mmHg at 25°C |
| Index of Refraction | 1.711 |
| Symbol |
GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H302-H319 |
| Precautionary Statements | P305 + P351 + P338 |
| Hazard Codes | Xi |
| RIDADR | NONH for all modes of transport |
| HS Code | 2932209090 |
|
~88%
1983-81-9 |
| Literature: Hoechst Celanese Corp. Patent: US5726296 A1, 1998 ; |
|
~50%
1983-81-9 |
| Literature: Andres, Julien; Chauvin, Anne-Sophie Physical Chemistry Chemical Physics, 2013 , vol. 15, # 38 p. 15981 - 15994 |
|
~60%
1983-81-9 |
| Literature: Shen, Qiong; Shao, Jialiang; Peng, Quan; Zhang, Wanjin; Ma, Lin; Chan, Albert S. C.; Gu, Lianquan Journal of Medicinal Chemistry, 2010 , vol. 53, # 23 p. 8252 - 8259 |
|
~%
1983-81-9 |
| Literature: Xie, Lan; Takeuchi, Yasuo; Cosentino, L. Mark; Lee, Kuo-Hsiung Journal of Medicinal Chemistry, 1999 , vol. 42, # 14 p. 2662 - 2672 |
|
~%
1983-81-9 |
| Literature: Andres, Julien; Chauvin, Anne-Sophie Physical Chemistry Chemical Physics, 2013 , vol. 15, # 38 p. 15981 - 15994 |
|
~45%
1983-81-9 |
| Literature: Mizuno, Takumi; Nishiguchi, Ikuzo; Hirashima, Tsuneaki; Ogawa, Akiya; Kambe, Nobuaki; Sonoda, Noboru Synthesis, 1988 , # 3 p. 257 - 259 |
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |