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1428047-03-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1428047-03-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,8,0,4 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1428047-03:
143 % 10 = 3
So 1428047-03-3 is a valid CAS Registry Number.

1428047-03-3Relevant articles and documents

A traceless approach to amide and peptide construction from thioacids and dithiocarbamate-terminal amines

Chen, Wenteng,Shao, Jiaan,Hu, Miao,Yu, Wanwan,Giulianotti, Marc A.,Houghten, Richard A.,Yu, Yongping

, p. 970 - 976 (2013)

A novel and traceless strategy has been devised that allows a coupling of thioacids and dithiocarbamate-terminal amines. This strategy had been assumed to be dependent on the attachment of a functional equivalent of a cysteine side chain in earlier native chemical ligation approaches. This approach enables the traceless removal of CS2 to directly generate the desired amide bond and is compatible with a range of unprotected side chains of amino acid. The ability to produce amide or peptides by a traceless removal of the auxiliary is a significant virtue of the method. Meanwhile, the application of this new peptide-bond-forming reaction to the synthesis of novel endomorphin (EM) derivatives with various binding potencies was realized.

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