1570-09-8
1570-09-8 structure
- Name: 5,7-Dihydroxy-3,4',8-trimethoxyflavone
- Chemical Name: 5,7-dihydroxy-3,8-dimethoxy-2-(4-methoxyphenyl)chromen-4-one
- CAS Number: 1570-09-8
- Molecular Formula: C18H16O7
- Molecular Weight: 344.32
- Catalog: Natural product Flavonoids
- Create Date: 2016-01-05 08:50:28
- Modify Date: 2025-08-25 12:02:47
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5,7-Dihydroxy-3,4',8-trimethoxyflavone (Substance E) can be isolated from Conyza stricta Willd[1].
| Name | 5,7-dihydroxy-3,8-dimethoxy-2-(4-methoxyphenyl)chromen-4-one |
|---|---|
| Synonyms |
5,7-Dihydroxy-3,4',8-trimethoxyflavone
5,7-Dihydroxy-3,8,4'-trimethoxyflavone 4H-1-Benzopyran-4-one, 5,7-dihydroxy-3,8-dimethoxy-2-(4-methoxyphenyl)- W1654 3,8,4'-Trimethylherbacetin 5,7-Dihydroxy-3,8-dimethoxy-2-(4-methoxyphenyl)-4H-chromen-4-one Herbacetin 3,8,4'-trimethyl ether |
| Description | 5,7-Dihydroxy-3,4',8-trimethoxyflavone (Substance E) can be isolated from Conyza stricta Willd[1]. |
|---|---|
| Related Catalog | |
| References |
| Density | 1.5±0.1 g/cm3 |
|---|---|
| Boiling Point | 577.3±50.0 °C at 760 mmHg |
| Molecular Formula | C18H16O7 |
| Molecular Weight | 344.32 |
| Flash Point | 212.2±23.6 °C |
| Exact Mass | 344.089600 |
| PSA | 98.36000 |
| LogP | 1.66 |
| Vapour Pressure | 0.0±1.7 mmHg at 25°C |
| Index of Refraction | 1.654 |
| Hazard Codes | Xi |
|---|---|
| HS Code | 2932999099 |
|
~31%
1570-09-8 |
| Literature: Horie, Tokunaru; Tsukayama, Masao; Kawamura, Yasuhiko; Seno, Masamichi Journal of Organic Chemistry, 1987 , vol. 52, # 21 p. 4702 - 4709 |
|
~%
1570-09-8 |
| Literature: Horie, Tokunaru; Tsukayama, Masao; Kawamura, Yasuhiko; Seno, Masamichi Journal of Organic Chemistry, 1987 , vol. 52, # 21 p. 4702 - 4709 |
|
~%
1570-09-8 |
| Literature: Horie, Tokunaru; Tsukayama, Masao; Kawamura, Yasuhiko; Seno, Masamichi Journal of Organic Chemistry, 1987 , vol. 52, # 21 p. 4702 - 4709 |
|
~%
1570-09-8 |
| Literature: Zapesochnaya, G. G.; Kurkin, V. A.; Shchavlinskii, A. N. Chemistry of Natural Compounds, 1985 , vol. 21, # 4 p. 464 - 473 Khimiya Prirodnykh Soedinenii, 1985 , vol. 21, # 4 p. 496 - 507 |
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |