137043-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137043-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,4 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137043-71:
(8*1)+(7*3)+(6*7)+(5*0)+(4*4)+(3*3)+(2*7)+(1*1)=111
111 % 10 = 1
So 137043-71-1 is a valid CAS Registry Number.
137043-71-1Relevant articles and documents
An acid labile arginine derivative for peptide synthesis: N(G)-2,2,5,7,8-pentamethylchroman-6-sulphonyl-L-arginine
Ramage,Green,Blake
, p. 6353 - 6370 (2007/10/02)
A trifluoroacetic acid (TFA) labile protecting group for the guanidine side chain function of arginine has been developed. N(G)-(2,2,5,7,8-Pentamethylchroman-6-sulphonyl-L-arginine is cleaved rapidly in TFA or 50% TFA in dichloromethane at room temperatur
