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1071-49-4

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1071-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1071-49-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,7 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1071-49:
(6*1)+(5*0)+(4*7)+(3*1)+(2*4)+(1*9)=54
54 % 10 = 4
So 1071-49-4 is a valid CAS Registry Number.

1071-49-4Relevant articles and documents

A rapid reaction releasing the carboxyl terminal residues of peptides

Yagisawa, Shiroki,Urakami, Masako

, p. 7557 - 7560 (2007/10/03)

Alcoholysis of peptide oxazolones in alcohols containing dilute acid, such as 0.02M HCl, gives the C-terminal amino acid and the ester of the shortened peptide within 10 minutes at room temperature in 30-70% yields. This together with the finding that the peptide oxazolones can be formed within 3 minutes with alkylchloroformates enables the rapid removal of peptide C-terminal residues.

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