125442-81-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 125442-81-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,4,4 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 125442-81:
(8*1)+(7*2)+(6*5)+(5*4)+(4*4)+(3*2)+(2*8)+(1*1)=111
111 % 10 = 1
So 125442-81-1 is a valid CAS Registry Number.
125442-81-1Relevant articles and documents
CONJUGATE ADDITIONS OF THE CROWN-POTASSIUM ENOLATE COMPLEXES
Takasu, Mayumi,Wakabayashi, Hiroaki,Furuta, Kyoji,Yamamoto, Hisashi
, p. 6943 - 6946 (2007/10/02)
Achiral and chiral crowns complexed with potassium bases catalyze the Michael additions of enolates to cycloalkenones.