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123994-04-7

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123994-04-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123994-04-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,9,9 and 4 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 123994-04:
(8*1)+(7*2)+(6*3)+(5*9)+(4*9)+(3*4)+(2*0)+(1*4)=137
137 % 10 = 7
So 123994-04-7 is a valid CAS Registry Number.

123994-04-7Downstream Products

123994-04-7Relevant articles and documents

A short asymmetric synthesis of 2,5-disubstituted pyrrolidines

Katritzky, Alan R.,Cui, Xi-Lin,Yang, Baozhen,Steel, Peter J.

, p. 1697 - 1700 (2007/10/03)

A novel approach to chiral 2,5-disubstituted pyrrolidines, starting from chiral 2-phenyl-glycimol, 1,5-dimethoxytetrahydrofuran, and benzotriazole, involves the diastereoselective substitution by Grignard reagents of a benzotriazolyl group in a crystalline intermediate obtained in high yield.

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