194019-50-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 194019-50-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,4,0,1 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 194019-50:
(8*1)+(7*9)+(6*4)+(5*0)+(4*1)+(3*9)+(2*5)+(1*0)=136
136 % 10 = 6
So 194019-50-6 is a valid CAS Registry Number.
194019-50-6Relevant articles and documents
Diastereoselective azomethine ylide cycloadditions to unsaturated, chiral bicyclic lactams
Fray,Meyers
, p. 3575 - 3578 (1992)
The levels of diastereoselection resulting from the 1,3-dipolar cycloaddition of chiral and achiral ylides (2(a-c) to chiral, unsaturated bicyclic lactams 1(a-f) are described in terms of steric factors.