118143-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118143-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,1,4 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 118143-72:
(8*1)+(7*1)+(6*8)+(5*1)+(4*4)+(3*3)+(2*7)+(1*2)=109
109 % 10 = 9
So 118143-72-9 is a valid CAS Registry Number.
118143-72-9Relevant academic research and scientific papers
HIGHLY ENANTIOSELECTIVE AMIDE LIGATION BY PRIOR THIOL CAPTURE
Kemp, D. S.,Buckler, David R.
, p. 3013 - 3016 (2007/10/02)
The mixed disulfides from (R,S)-1-(Cbz-L-alanyloxy)-9-mercapto-phenoxathiin-10-sulfoxide and H-L-Cys-OMe undergo O,N-acyl transfer in DMSO at 23 deg C with rate constants of 7.0 h-1 and 0.048 h-1, and a rate ratio of 146; EM values of 0.2 M and 0.015 M.
