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626200-80-4

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626200-80-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 626200-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,6,2,0 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 626200-80:
(8*6)+(7*2)+(6*6)+(5*2)+(4*0)+(3*0)+(2*8)+(1*0)=124
124 % 10 = 4
So 626200-80-4 is a valid CAS Registry Number.

626200-80-4Relevant articles and documents

Synthesis of A-ring synthon of 2α-substituted vitamin d3 analogues utilizing Grignard reaction towards methyl 2,3-anhydro-4,6-o-benzylidene-α-D-manno-pyranoside

Honzawa, Shinobu,Yamamoto, Yasuhiro,Hirasaka, Koshiro,Takayama, Hiroaki,Kittaka, Atsushi

, p. 327 - 338 (2007/10/03)

A concise route to the Trost A-ring precursor enyne for synthesizing 2α-substituted 1α,25-dihydroxyvitamin D3 (1) is described, in which the 2α-substituents could be introduced via addition reaction of Grignard reagent towards the sugar epoxide

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