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749828-81-7

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749828-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 749828-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,9,8,2 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 749828-81:
(8*7)+(7*4)+(6*9)+(5*8)+(4*2)+(3*8)+(2*8)+(1*1)=227
227 % 10 = 7
So 749828-81-7 is a valid CAS Registry Number.

749828-81-7Relevant articles and documents

Method for Preparing Unnatural Amino Acids

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Paragraph 0172; 0173; 0208; 0209, (2017/01/09)

The present invention relates to a manufacturing method of unnatural amino acids and unnatural amino acids manufactured thereby. Specifically, the present invention relates to an asymmetric synthesis method which can manufacture unnatural amino acids having significantly high optical purity, and to the unnatural amino acids manufactured thereby. A manufacturing method of unnatural amino acids represented by chemical formula 6 or chemical formula 7 comprises the steps of: synthesizing a compound represented by chemical formula 4 or chemical formula 5; manufacturing a diol compound; and manufacturing a carboxylic acid compound.COPYRIGHT KIPO 2016

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