91502-54-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91502-54-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,0 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91502-54:
(7*9)+(6*1)+(5*5)+(4*0)+(3*2)+(2*5)+(1*4)=114
114 % 10 = 4
So 91502-54-4 is a valid CAS Registry Number.
91502-54-4Relevant academic research and scientific papers
PREPARATION OF CHIRAL SULFONES BY ASYMMETRIC ADDITION OF ARENESULFONYL CARBANIONS TO ACETONE
Akiyama, Takahiko,Shimizu, Makoto,Mukaiyama, Teruaki
, p. 611 - 614 (2007/10/02)
In the presence of a chiral diamine, the magnesium salt of tolyl sulfone reacts with acetone at the α-carbon to afford the corresponding β-hydroxy adduct in good optical purity.
