99834-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99834-44-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,3 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 99834-44:
(7*9)+(6*9)+(5*8)+(4*3)+(3*4)+(2*4)+(1*4)=193
193 % 10 = 3
So 99834-44-3 is a valid CAS Registry Number.
99834-44-3Relevant articles and documents
Une nouvelle synthese de β-enaminoindanones
Brunerie, Pascal,Celerier, Jean-Pierre,Lhommet, Gerard
, p. 447 - 448 (2007/10/02)
β-Enaminoindanones can be conveniently prepared in a single stage by treatment of ethyl o-chloromethylbenzoate with various cyclic or acyclic β-enaminoesters in the presence of sodium hydride in toluene.
