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49759-56-0

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49759-56-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 49759-56-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,7,5 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 49759-56:
(7*4)+(6*9)+(5*7)+(4*5)+(3*9)+(2*5)+(1*6)=180
180 % 10 = 0
So 49759-56-0 is a valid CAS Registry Number.

49759-56-0Relevant articles and documents

α-chymotrypsin-catalysed peptide synthesis via the kinetically controlled approach using activated esters as acyl donors in organic solvents with low water content: Incorporation of non-protein amino acids into peptides

Miyazawa, Toshifumi,Nakajo, Shin'ichi,Nishikawa, Miyako,Hamahara, Kazumi,Imagawa, Kiwamu,Ensatsu, Eiichi,Yanagihara, Ryoji,Yamada, Takashi

, p. 82 - 86 (2007/10/03)

The α-chymotrypsin-catalyzed peptide synthesis via the kinetically controlled approach using activated esters as acyl donors in orgnanic solvents with low water content was presented. The methyl esters of N-Z derivatives of racemic non-protein amino acids were chosen as carboxy components. They allowed the peptide-bond formation and optical resolution simultaneously to yield homochiral peptides. This method is useful for the incorporation of non-protein amino acids into peptides.

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