Allium Cepa Extract Onion Extract

Product Description

Onion Extract
KINGHERBS' Onion Extract aims at total polyphenol and main flavonoid antioxidants in the onion bulb. The main ingredients are as follows,
1. Spiraeoside (quercetin-4-O-β -D-glucoside),
2. Rutin
3. Quercetin
Spiraeoside:
Synonym(s): Quercetin 4'-glucoside. Spiraein. Spiraeoside. Spireoside
Chapman Hall Number: KWD91-S
CAS Number: 20229-56-5
Molecular Formula & weight: C21H20O12; 464.382
Accurate Mass: 464.09548
Percentage Composition: C 54.32%; H 4.34%; O 41.34%
Physical Description: Yellow needles (MeOH aq. )
Melting Point: MP 240-241 (209-210)
KINGHERBS choose the right species of onion, and after an intended storage in a special condition, we extract it with only grain ethanol. Thus assure the best quality.
We suggest onion paste extract instead of dry powder extract.