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169676-25-9

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169676-25-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 169676-25-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,6,7 and 6 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 169676-25:
(8*1)+(7*6)+(6*9)+(5*6)+(4*7)+(3*6)+(2*2)+(1*5)=189
189 % 10 = 9
So 169676-25-9 is a valid CAS Registry Number.

169676-25-9Downstream Products

169676-25-9Relevant 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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