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102717-31-7

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102717-31-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 102717-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,7,1 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 102717-31:
(8*1)+(7*0)+(6*2)+(5*7)+(4*1)+(3*7)+(2*3)+(1*1)=87
87 % 10 = 7
So 102717-31-7 is a valid CAS Registry Number.

102717-31-7Relevant articles and documents

A General Synthetic Route to A-Ring Hydroxylated Vitamin D Analogs from Pentoses

Moriarty, Robert M.,Kim, Joonggon,Brumer, Harry

, p. 51 - 54 (2007/10/02)

The enyne needed for coupling to a CD-ring fragment, namely, 3S,5R-oct-1-en-7-yne-3,5-diol, in the Trost-Dumas carbopalladation route to 1α,25-dihydroxyvitamin D3 was synthesized from D-xylose in 13 steps and 21percent yield.

The Synthesis of the δ-Lactone Portion of the Mevinic Acids; a New Non-acidic Method of Cyclic Lactone Expansion

Davidson, Alan H.,Floyd, Chris D.,Lewis, Christopher N.,Myers, Peter. L.

, p. 1417 - 1418 (2007/10/02)

An alkoxy-mercuration demercuration sequence has been used as the key step in an enantiospecific synthesis of a protected synthon for the lactone portion of the mevinic acids.

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