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63133-61-9

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63133-61-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 63133-61-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,1,3 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 63133-61:
(7*6)+(6*3)+(5*1)+(4*3)+(3*3)+(2*6)+(1*1)=99
99 % 10 = 9
So 63133-61-9 is a valid CAS Registry Number.

63133-61-9Downstream Products

63133-61-9Relevant articles and documents

Radical cyclization in heterocycle synthesis. 12. Sulfanyl radical addition-addition-cyclization (SRAAC) of unbranched diynes and its application to the synthesis of A-ring fragment of 1 α,25-dihydroxyvitamin d3

Miyata,Nakajima,Naito

, p. 213 - 224 (2007/10/03)

Sulfanyl radical addition-addition-cyclization (SRAAC) of unbranched diynes proceeded smoothly to give cyclized exo-olefins, while the sulfanyl radical addition-cyclization-addition (SRACA) of diynes having a quaternary carbon gave cyclized endo-olefins. This method was successfully applied to the synthesis of A-ring fragment of 1 α,25-dihydroxyvitamin D3.

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