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403694-63-3

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403694-63-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 403694-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,3,6,9 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 403694-63:
(8*4)+(7*0)+(6*3)+(5*6)+(4*9)+(3*4)+(2*6)+(1*3)=143
143 % 10 = 3
So 403694-63-3 is a valid CAS Registry Number.

403694-63-3Relevant articles and documents

Asymmetric total synthesis of (+)-brefeldin A from (S)-lactate by triple chirality transfer process and nitrile oxide cycloaddition

Kim, Deukjoon,Lee, Jongkook,Phil, Jong Shim,Joong, Inn Lim,Jo, Hyunil,Kim, Sanghee

, p. 764 - 771 (2002)

A novel synthesis of (+)-brefeldin A (1) has been accomplished on the basis of triple chirality transfer methodology, intramolecular ester enolate alkylation, and both intra- and intermolecular nitrile oxide cycloaddition strategies.

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