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cyclo-(Val-Orn(Z)-Leu-D-Pya-Pro)2 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139740-92-4

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139740-92-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139740-92-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,7,4 and 0 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139740-92:
(8*1)+(7*3)+(6*9)+(5*7)+(4*4)+(3*0)+(2*9)+(1*2)=154
154 % 10 = 4
So 139740-92-4 is a valid CAS Registry Number.

139740-92-4Downstream Products

139740-92-4Relevant academic research and scientific papers

Synthesis of 4,4'>gramicidin S by Solid-Phase-Synthesis and Cyclization-Cleavage Method with Oxime Resin

Xu, Ming,Nishino, Norikazu,Mihara, Hisakazu,Fujimoto, Tsutomu,Izumiya, Nobuo

, p. 191 - 194 (1992)

Cyclic decapeptide 4,4'>gramicidin S has been efficiently synthesized via stepwise solid-phase-synthesis and cyclization-cleavage with the Kaiser's oxime resin in 45percent total yield.This analog showed the similar conformation to the natural gramicidin S in MeOH.The pyrene ring introduced into the peptide is a useful fluorescent probe for the study of the mechanism of the antimicrobial activity.

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