138344-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138344-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,4 and 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138344-83:
(8*1)+(7*3)+(6*8)+(5*3)+(4*4)+(3*4)+(2*8)+(1*3)=139
139 % 10 = 9
So 138344-83-9 is a valid CAS Registry Number.
138344-83-9Relevant academic research and scientific papers
The First Solvent-directed Regioselective Ketal Reduction of Unsymmetrical Glycols
Hunter, Roger,Bartels, Birgit
, p. 2887 - 2888 (2007/10/02)
Borane-dimethyl sulphide/TMSOTf in THF reduces ketals of unsymmetrical vicinal diols with much higher regioselectivity than with CH2Cl2 as solvent.
