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77568-43-5

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77568-43-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77568-43-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,6 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77568-43:
(7*7)+(6*7)+(5*5)+(4*6)+(3*8)+(2*4)+(1*3)=175
175 % 10 = 5
So 77568-43-5 is a valid CAS Registry Number.

77568-43-5Relevant articles and documents

A flexible asymmetric approach to methyl 5-alkyltetramates and its application in the synthesis of cytotoxic marine natural product belamide A

Lan, Hong-Qiao,Ye, Jian-Liang,Wang, Ai-E,Ruan, Yuan-Ping,Huang, Pei-Qiang

supporting information; experimental part, p. 958 - 968 (2011/03/20)

By using a methyl tetramate derivative (R)- or (S)-9 as a novel chiral building block, a direct, flexible, and highly enantioselective approach to methyl (R)- or (S)-5-alkyltetramates (2) is disclosed. Among the synthesized methyl 5-alkyltetramates 2, met

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