243975-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 243975-17-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,3,9,7 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 243975-17:
(8*2)+(7*4)+(6*3)+(5*9)+(4*7)+(3*5)+(2*1)+(1*7)=159
159 % 10 = 9
So 243975-17-9 is a valid CAS Registry Number.
243975-17-9Relevant articles and documents
Highly enantioselective catalytic conjugate additions to cyclohexadienones
Imbos, Rosalinde,Brilman, Mirjan H. G.,Pineschi, Mauro,Feringa, Ben L.
, p. 623 - 625 (1999)
(Matrix presented) Enantioselective copper phosphoramidite-catalyzed conjugate addition of dialkylzinc reagents (R2Zn) to several 4,4-disubstituted cyclohexadienones was achieved with dr's up to 99/1 and ee's up to 99%.
