Quercetin NEW

Quercetin CAS:117-39-5 Sophora Japonica Extract Powder

Product Name:Quercetin

Synonyms:3,3',4',5,7-Pentahydroxyflavone 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one;MELETIN;FLAVIN MELETIN;LABOTEST-BB LT00455149;CI NO 75670;XANTHAURINE;QUERCETINE;QUERTINE

CAS:117-39-5

MF:C15H10O7

MW:302.24

EINECS:  204-187-1

Melting point:316.5 °C

Boiling point:363.28°C (rough estimate)

density:1.3616 (rough estimate)

refractive index:1.4790 (estimate)

storage temp.:room temp

solubility:insoluble in H2O; ≥15.1 mg/mL in DMSO; ≥3.28 mg/mL in EtOH

Uses:1. It can be used as a kind of antioxidant which is mainly used for oil, drinks, cold drinks, meat processing products.

2. It has good effects of expectorant, anti-cough, anti-asthma and can be used for treating chronic bronchitis as well as for adjuvant therapy of coronary heart disease and high blood pressure.

3. It can also be used as analytical standards

Description   

The name of quercetin has been used since 1857, which is derived from quercetum (oak forest) after Quercus. Quercetin is widely found in flowers, leaves, and fruits of various plants. Vegetables (such as onions, ginger, celery, etc.), fruits (such as apples, strawberries, etc.), beverages (such as tea, coffee, red wine, fruit juice, etc.), and more than 100 kinds of Chinese herbal medicines (such as Threevein Aster, mountain white chrysanthemum, Huai rice, Apocynum, Ginkgo biloba, etc.) contain this ingredient.

Threevein Aster is a Chinese herbal medicine and used in Jiangxi province, China, for more than 30 years. Its plant name is three veins Mala, Compositae. It is rich in drug sources, which can be found in Southern provinces of China. Clinical practice proved that it has significant anti-inflammatory and expectorant effects, and it is a good prescription for the treatment of elderly chronic bronchitis.