109838-64-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109838-64-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,8,3 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 109838-64:
(8*1)+(7*0)+(6*9)+(5*8)+(4*3)+(3*8)+(2*6)+(1*4)=154
154 % 10 = 4
So 109838-64-4 is a valid CAS Registry Number.
109838-64-4Relevant academic research and scientific papers
Samarium-Promoted, Stereocontrolled Cyclopropanation Reactions
Molander, Gary A.,Etter, Jeffrey B.
, p. 3942 - 3944 (2007/10/02)
Samarium-based carbenoids have been found to be highly efficient cyclopropanation reagents for allylic alcohol substrates.Hydroxyl-directed cyclopropanations occur under very mild conditions with a high degree of selectivity.
