192993-38-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 192993-38-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,2,9,9 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 192993-38:
(8*1)+(7*9)+(6*2)+(5*9)+(4*9)+(3*3)+(2*3)+(1*8)=187
187 % 10 = 7
So 192993-38-7 is a valid CAS Registry Number.
192993-38-7Relevant academic research and scientific papers
An Improved Synthesis of Homochiral Octalones from (-)-Carvone
Tenius, Beatriz S. M.,Oliveira, Eduardo R. de,Ferraz, Helena M. C.
, p. 633 - 636 (2007/10/02)
A novel diastereoselective route to octalones 3 and 4 has been developed.The key step involves an asymmetric Michael addition of the corresponding chiral imine, derived from R-(+)-dihydrocarvone, to methyl vinyl ketone.
