1137831-11-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1137831-11-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,7,8,3 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1137831-11:
(9*1)+(8*1)+(7*3)+(6*7)+(5*8)+(4*3)+(3*1)+(2*1)+(1*1)=138
138 % 10 = 8
So 1137831-11-8 is a valid CAS Registry Number.
1137831-11-8Relevant articles and documents
Regio- and chemoselective one-step 3-O-alkylenation of unprotected ascorbic acid using ω-iodoalkanols
Muller, Thierry,Heuschling, Paul,Luu, Bang
, p. 217 - 220 (2009)
A regio- and chemoselective alkylenation employing unprotected ascorbic acid and a series of unprotected iodoalkanols in the presence of sodium hydrogen carbonate in dimethyl sulfoxide is described. This atom economic high yielding procedure delivers the