103740-44-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103740-44-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,7,4 and 0 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 103740-44:
(8*1)+(7*0)+(6*3)+(5*7)+(4*4)+(3*0)+(2*4)+(1*4)=89
89 % 10 = 9
So 103740-44-9 is a valid CAS Registry Number.
103740-44-9Relevant academic research and scientific papers
Condensation of Enolates with O-Ethyl Pyrrolidonium Salts: An Alternative to the Orthoamide Condensation
Mattson, Ronald J.,Sowell, J. Walter,Bryson, Thomas A.
, p. 973 - 975 (2007/10/02)
O-Ethyl-N-substituted pyrrolidonium fluoroborate salts were condensed under basic conditions with active methylene compounds to give vinylogous carbamates and cyanamides.
