Details for Dihydromyricetin
Dihydromyricetin
111Category: Food and Feed additives
CAS NO: 27200-12-0 EC NO: Molecular Formula: C15H12O8 Molecular Weight: 320.251 Specification: 98% (HPLC) InChI: InChI=1/C15H12O8/c16-6-3-7(17)11-10(4-6)23-15(14(22)13(11)21)5-1-8(18)12(20)9(19)2-5/h1-4,14-20,22H/t14-,15+/m0/s1 Packing: Double food plastic container bag inside,aluminum foil bag outside,25kgs/drum Product description:
【Plant source】 Dihydromyricetin is purified from the leaves of Vine Tea (Teng Cha), which is one of a rare typical tea plant in China. The Botanical name of Vine tea is Ampolopsis grossedentata . The vine tea contains rich flavones, amino acids, vitamins and essential trace element, in which the content of dihydromyricetin is especially high. Use Vine Tea in traditional Chinese herbal medicine has a good effect in clearing heat, disinhibiting dampness, protecting liver, promoting blood circulation and regulating qi. 【Physicochemical property 】 Dihydromyricetin is white needle crystals powder, is the main active ingredient flavonoid in vine tea.Molecular formula is C15H12O8=320.25, and weight is 320.25,easy soluble in hot water,hot ethanol and acetone.soluble in ethanol,methanol.very slightly soluble Ethyl acetate,insoluble in chloroform,petroleum ether. Dihydromyricetin has good thermal stability, but irreversible oxidation reaction occurs with dihydromyricetin as the temperature increases above 100℃. Dihydromyricetin is stable under meutral and acidic conditions. Dihydromyricetin becomes unstable in the aqueous phase with increasing time and temperature,is oxidized and irreversible,and pH is an important factor affecting the stability of dihydromyricetin. The acidic and neutral conditions (Ph<；7.0) are the suitable pH conditions for the application and preservation of dihydromyricetin, Metal ions AL,Fe,Cu,etc.Have a great influence on the stability of dihydromyricetin.Uses: Food,beverage,cosmetic,chemical,medicine... Synonyms: (+)-Dihydromyricetin; Ampelopsin; (2R,3R)-3,5,7-Trihydroxy-2-(3,4,5-trihydroxyphenyl)chroman-4-one;(2R,3R)-3,5,7-trihydroxy-2-(3,4,5-trihydroxyphenyl)-2,3-dihydro-4H-chromen-4-one; Molecular Structure: 
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