103740-48-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103740-48-3 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 8 respectively.
Calculate Digit Verification of CAS Registry Number 103740-48:
(8*1)+(7*0)+(6*3)+(5*7)+(4*4)+(3*0)+(2*4)+(1*8)=93
93 % 10 = 3
So 103740-48-3 is a valid CAS Registry Number.
103740-48-3Relevant articles and documents
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.
