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152972-17-3

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152972-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 152972-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,2,9,7 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 152972-17:
(8*1)+(7*5)+(6*2)+(5*9)+(4*7)+(3*2)+(2*1)+(1*7)=143
143 % 10 = 3
So 152972-17-3 is a valid CAS Registry Number.

152972-17-3Relevant articles and documents

TANDEM GENERATION AND INTRAMOLECULAR TRAPPING OF CHIRAL STABILISED AZOMETHINE YLIDS WITH ALKYNE DIPOLAROPHILES

Harwood, Laurence M.,Kitchen, Lara C.

, p. 6603 - 6606 (1993)

Due to steric contraints imposed upon the bridging chain by the three-carbon linear unit associated with the alkyne, hex-5-ynal condenses with (5R)-phenylmorpholin-2-one (1) and undergoes intramolecular 3+2 dipolar cycloaddition via the syn-azomethine yli

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