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172617-59-3

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172617-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172617-59-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,6,1 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 172617-59:
(8*1)+(7*7)+(6*2)+(5*6)+(4*1)+(3*7)+(2*5)+(1*9)=143
143 % 10 = 3
So 172617-59-3 is a valid CAS Registry Number.

172617-59-3Downstream Products

172617-59-3Relevant articles and documents

Addition of dimethyloxosulfonium methylide to enantiomerically pure sulfinimines: Asymmetric synthesis of 2-substituted aziridines

Davis,Zhou,Liang,Reddy

, p. 1511 - 1514 (1995)

Diastereoselective addition of dimethyloxosulfonium methylide to chiral nonracemic pure sulfinimines 1 affords N-sulfinyl aziridines 3 in 58-70% de which are readily separated. The N-sulfinyl auxillary in 3 was removed, without ring-opening, by treatment

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