Cas 1426657-65-9,6-(diethylaminomethyl)-(2R,3R)-dihydroquercetin

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Check Digit Verification of cas no

The CAS Registry Mumber 1426657-65-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,6,6,5 and 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1426657-65:
(9*1)+(8*4)+(7*2)+(6*6)+(5*6)+(4*5)+(3*7)+(2*6)+(1*5)=179
179 % 10 = 9
So 1426657-65-9 is a valid CAS Registry Number.

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1426657-65-9Relevant academic research and scientific papers

Study of skin anti-ageing and anti-inflammatory effects of dihydroquercetin, natural triterpenoinds, and their synthetic derivatives1

Lee, Chan Woo,Park, Nok Hyun,Kim, Jin Woong,Um, Byung Hun,Shpatov,Shults,Sorokina,Popov

, p. 328 - 334 (2012)

Accessible triterpenoids of ursane and lupane series, the flavonoid dihydroquercetin and their syn-thetic derivatives with polar substituents were tested in vitro for inhibition of collagenase 1 (MMP-1) in UVB irradiation assay. Ursolic acid and uvaol disuccinate were the most active inhibitors in the ursane series. In the lupane series, the best inhibition was manifested by carboxymethyl ester of betulonic acid and betulin succi-nates. Down-regulation of MMP-1 by dihydroquercetin and its synthetic derivatives surpassed the activity of a standard (retinoic acid). Pleiades Publishing, Ltd., 2012.

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