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144889-39-4

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144889-39-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144889-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,8,8 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 144889-39:
(8*1)+(7*4)+(6*4)+(5*8)+(4*8)+(3*9)+(2*3)+(1*9)=174
174 % 10 = 4
So 144889-39-4 is a valid CAS Registry Number.

144889-39-4Relevant articles and documents

Versatile selective α-carboxylic acid esterification of N-protected amino acids and peptides by alcalase

Nuijens, Timo,Cusan, Claudia,Kruijtzer, John A. W.,Rijkers, Dirk T. S.,Liskamp, Rob M. J.,Quaedflieg, Peter J. L. M.

experimental part, p. 809 - 814 (2009/07/11)

Under continuous removal of water, the industrial protease Alcalase allows selective synthesis of α-carboxylic acid methyl, ethyl, benzyl, allyl, 2-(trimethylsilyl)ethyl, and tert-butyl esters of amino acids and peptides under mild conditions in very high

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