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1293997-44-0

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1293997-44-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1293997-44-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,3,9,9 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1293997-44:
(9*1)+(8*2)+(7*9)+(6*3)+(5*9)+(4*9)+(3*7)+(2*4)+(1*4)=220
220 % 10 = 0
So 1293997-44-0 is a valid CAS Registry Number.

1293997-44-0Downstream Products

1293997-44-0Relevant articles and documents

Highly diastereo-and enantioselective synthesis of 5-substituted 3-pyrrolidin-2-ones: Vinylogous michael addition under multifunctional catalysis

Huang, Huicai,Jin, Zhichao,Zhu, Kailong,Liang, Xinmiao,Ye, Jinxing

supporting information; experimental part, p. 3232 - 3235 (2011/05/15)

A direct line: A direct organocatalytic asymmetric vinylogous Michael addition of α,β-unsaturated γ-butyrolactams with α,β-unsaturated ketones has been developed (see scheme; Boc=tert-butoxycarbonyl, Trp=tryptophan, Ts=4-toluenesulfonyl). The resulting Mi

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