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1093115-84-4

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1093115-84-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1093115-84-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,3,1,1 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1093115-84:
(9*1)+(8*0)+(7*9)+(6*3)+(5*1)+(4*1)+(3*5)+(2*8)+(1*4)=134
134 % 10 = 4
So 1093115-84-4 is a valid CAS Registry Number.

1093115-84-4Relevant articles and documents

Synthesis and antibacterial activities of N-Glycosylated derivatives of tyrocidine a, a macrocyclic peptide antibiotic

Honggang, Hu,Jie, Xue,Swarts, Benjamin M.,Qianli, Wang,Qiuye, Wu,Zhongwu, Guo

experimental part, p. 2052 - 2059 (2009/12/30)

An efficient and practical method for macrocyclic glycopeptide synthesis was developed and utilized to synthesize tyrocidine A and its glycosylated derivatives. The method is based on solid-phase peptide synthesis using 2-chlorotrityl resin as the solid-phase support and glycosyl amino acids as building blocks. After glycopeptides with fully protected glycans and side chains were released from the acid-labile resin, their Cand N-termini were intramolecularly coupled in solution to afford cyclic glycopeptides in quantitative yields. This synthetic method should be generally applicable to various macrocyclic glycopeptides. Biological studies of the synthetic tyrocidine A derivatives showed that linking glycans directly to the Asn residue of tyrocidine A diminished its antibacterial activity, but linking glycans to Asn via a simple spacer did not. These results Revealed the important impact of glycans on the activities, and probably the structures, of glycopeptide antibiotics.

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