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402741-11-1

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402741-11-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 402741-11-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,7,4 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 402741-11:
(8*4)+(7*0)+(6*2)+(5*7)+(4*4)+(3*1)+(2*1)+(1*1)=101
101 % 10 = 1
So 402741-11-1 is a valid CAS Registry Number.

402741-11-1Relevant articles and documents

The proline-catalyzed direct asymmetric three-component Mannich reaction: Scope, optimization, and application to the highly enantioselective synthesis of 1,2-amino alcohols

List, Benjamin,Pojarliev, Peter,Biller, William T.,Martin, Harry J.

, p. 827 - 833 (2002)

We have developed proline-catalyzed direct asymmetric three-component Mannich reactions of ketones, aldehydes, and amines. Several of the studied reactions provide β-amino carbonyl compounds (Mannich products) in excellent enantio-, diastereo-, regio-, an

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