14549-84-9
14549-84-9 structure
- Name: 4H-1-Benzopyran-4-one,2-(3,4-dimethoxyphenyl)-5,7-dihydroxy-3-methoxy-
- Chemical Name: 2-(3,4-dimethoxyphenyl)-5,7-dihydroxy-3-methoxychromen-4-one
- CAS Number: 14549-84-9
- Molecular Formula: C18H16O7
- Molecular Weight: 344.31500
- Create Date: 2019-02-16 23:50:16
- Modify Date: 2025-08-25 22:25:07
| Name | 2-(3,4-dimethoxyphenyl)-5,7-dihydroxy-3-methoxychromen-4-one |
|---|---|
| Synonyms |
UNII-429X56Q8K5
quercetin 3,3',4'-tri-O-methyl ether Quercetin 3,3',4'-trimethyl ether 2-(3,4-Dimethoxy-phenyl)-5,7-dihydroxy-3-methoxy-chromen-4-on 5,3',4'-trimethoxy flavone 5,7-Dihydroxy-3,3',4'-trimethoxyflavone 2-(3,4-dimethoxy-phenyl)-5,7-dihydroxy-3-methoxy-chromen-4-one |
| Density | 1.45g/cm3 |
|---|---|
| Boiling Point | 571.1ºC at 760mmHg |
| Molecular Formula | C18H16O7 |
| Molecular Weight | 344.31500 |
| Flash Point | 209.7ºC |
| Exact Mass | 344.09000 |
| PSA | 98.36000 |
| LogP | 2.89700 |
| Vapour Pressure | 1.21E-13mmHg at 25°C |
| Index of Refraction | 1.653 |
| HS Code | 2914509090 |
|---|
|
~74%
14549-84-9 |
| Literature: SHENOGEN PHARMA GROUP LTD. Patent: WO2009/129372 A1, 2009 ; Location in patent: Page/Page column 37 ; |
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14549-84-9 |
| Literature: Daskiewicz, Jean-Baptiste; Depeint, Flore; Viornery, Lionel; Bayet, Christine; Comte-Sarrazin, Geraldine; Comte, Gilles; Gee, Jennifer M.; Johnson, Ian T.; Ndjoko, Karine; Hostettmann, Kurt; Barron, Denis Journal of Medicinal Chemistry, 2005 , vol. 48, # 8 p. 2790 - 2804 |
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14549-84-9 |
| Literature: Lynch et al. Journal of the Chemical Society, 1952 , p. 2063,2067 |
| Precursor 3 | |
|---|---|
| DownStream 1 | |
| HS Code | 2914509090 |
|---|---|
| Summary | HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |