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162131-80-8

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162131-80-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 162131-80-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,2,1,3 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 162131-80:
(8*1)+(7*6)+(6*2)+(5*1)+(4*3)+(3*1)+(2*8)+(1*0)=98
98 % 10 = 8
So 162131-80-8 is a valid CAS Registry Number.

162131-80-8Relevant articles and documents

An efficient route to a key A-ring synthon for 1α,25-dihydroxyvitamin D3 and its analogs

Hatakeyama, Susumi,Irie, Hiroshi,Shintani, Takashi,Noguchi, Yohko,Yamada, Hidetoshi,Nishizawa, Mugio

, p. 13369 - 13376 (2007/10/02)

An efficient and highly stereoselective route to the Roche's A-ring synthon of 1α,25-dihydroxyvitamin D3 from R-(-)-epichlorohydrin has been developed utilizing double propargylation of R-(-)-epichlorohydrin and palladium(0) catalyzed intramole

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