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1140906-45-1

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1140906-45-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1140906-45-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,0,9,0 and 6 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1140906-45:
(9*1)+(8*1)+(7*4)+(6*0)+(5*9)+(4*0)+(3*6)+(2*4)+(1*5)=121
121 % 10 = 1
So 1140906-45-1 is a valid CAS Registry Number.

1140906-45-1Relevant articles and documents

A flexible approach to methyl (5S)-5-alkyltetramate derivatives

Jiang, Li-Jiao,Lan, Hong-Qiao,Zheng, Jian-Feng,Ye, Jian-Liang,Huang, Pei-Qiang

, p. 297 - 301 (2009)

Regioselective Grignard reagent additions to 3-methoxymaleimides and subsequent diastereoselective reductive dehydroxylation of the resulting N,O-acetals were studied. On the basis of these studies, a flexible and highly regio- and diastereoselective approach to methyl 5-alkyltetramate derivatives was disclosed. The method is the first direct and flexible asymmetric cationic synthon-based approach, and allows for the synthesis of various methyl (5S)-5-alkyltetramate derivatives that are otherwise inaccessible by the commonly used methods based on α-amino acids. Georg Thieme Verlag Stuttgart.

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