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227961-42-4

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227961-42-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 227961-42-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,7,9,6 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 227961-42:
(8*2)+(7*2)+(6*7)+(5*9)+(4*6)+(3*1)+(2*4)+(1*2)=154
154 % 10 = 4
So 227961-42-4 is a valid CAS Registry Number.

227961-42-4Relevant articles and documents

Revisiting the 7,8-cis-Vitamin D3 derivatives: Synthesis, evaluating the biological activity, and study of the binding configuration

Sawada, Daisuke,Kakuda, Shinji,Kamimura-Takimoto, Midori,Takeuchi, Akiko,Matsumoto, Yotaro,Kittaka, Atsushi

, p. 2838 - 2848 (2016/05/19)

Four 7,8-cis-1α,25-dihydroxyVitamin D3 derivatives, 7,8-cis- and 7,8-cis-14-epi-1α,25-dihydroxy-19-norVitamin D3 as well as 7,8-cis- and 7,8-cis-14-epi-1α,25-dihydroxyVitamin D3 were synthesized, and their chemical stabili

Vitamin D3 analogs

-

, (2008/06/13)

Compounds of the formula wherein R1is hydrogen or an alkyl group; R2is hydrogen or an alkyl group; or R1, R2and C20together are cyclopropyl; R3is alkyl, hydroxy-alkyl or fluoroalkyl; and R

Vitamin D derivatives

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, (2008/06/13)

The present invention relates to vitamin D derivatives of the formula I STR1 wherein X is CCH2 or CH2 ; PA0 Y is hydrogen, fluorine or hydroxy PA0 Z is hydroxy PA0 n is 1 or 2 PA0 R1 is lower alkyl, PA0 R2 is a branched alkyl having 3 to 8 carbon atoms wh

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