51161-84-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51161-84-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,1,6 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 51161-84:
(7*5)+(6*1)+(5*1)+(4*6)+(3*1)+(2*8)+(1*4)=93
93 % 10 = 3
So 51161-84-3 is a valid CAS Registry Number.
51161-84-3Relevant articles and documents
Microwave assisted Mannich reaction of terminal alkynes on alumina
Sharifi, Ali,Farhangian, Hossein,Mohsenzadeh, Farshid,Naimi-Jamal
, p. 199 - 204 (2002)
Terminal alkynes, secondary amines, and formaldehyde undergo a Mannich reaction at room temperature in the presence of CuCl on Al2O3 without any organic solvent as reaction medium. The reaction can be promoted by microwave irradiatio