Name | 3',4',5,7-tetrahydroxy-3-methoxyflavone |
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Synonyms |
2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-methoxychromen-4-one
2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-3-methoxy-4H-chromen-4-one 3-methoxy-5,7,3',4'-tetrahydroxy-flavone 2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-3-methoxy-4H-1-benzopyran-4-one 3-O-Methylquercetin 4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-methoxy- |
Description | 3-O-Methylquercetin (3-MQ), a main constituent of Rhamnus nakaharai, inhibits total cAMP and cGMP-phosphodiesterase (PDE) of guinea pig trachealis. 3-O-Methylquercetin (3-MQ) exhibits IC50 values of 31.9 μM, 86.9 μM, 18.6 μM and 1.6 μM for PDE1, PDE5, PDE2 and PDE4, respectively[1]. |
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Related Catalog | |
References |
Density | 1.7±0.1 g/cm3 |
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Boiling Point | 643.0±55.0 °C at 760 mmHg |
Molecular Formula | C16H12O7 |
Molecular Weight | 316.262 |
Flash Point | 244.7±25.0 °C |
Exact Mass | 316.058289 |
PSA | 120.36000 |
LogP | 2.02 |
Vapour Pressure | 0.0±2.0 mmHg at 25°C |
Index of Refraction | 1.762 |
Symbol |
GHS06 |
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Signal Word | Danger |
Hazard Statements | H301 |
Precautionary Statements | P301 + P310 |
Hazard Codes | T |
Risk Phrases | 25 |
Safety Phrases | 45 |
RIDADR | UN 2811 6.1 / PGIII |
HS Code | 2914509090 |
Precursor 8 | |
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DownStream 4 | |
HS Code | 2914509090 |
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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% |