274902-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 274902-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,4,9,0 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 274902-20:
(8*2)+(7*7)+(6*4)+(5*9)+(4*0)+(3*2)+(2*2)+(1*0)=144
144 % 10 = 4
So 274902-20-4 is a valid CAS Registry Number.
274902-20-4Relevant academic research and scientific papers
Stereoselective radical bromination of α-chloro hydrocinnamic acid derivatives
See Wong, Leh,Chan, Bun,Wui Tan, Eng
, p. 2671 - 2674 (2007/10/03)
Reaction of (S)-2-chloro-3-phenylpropanoic acid derivatives with NBS gave the corresponding 3-bromo-2-chloro derivatives with a preference for the formation of the (2R,3S) isomers over the (2R,3R) isomers. The stereoselectivity was affected by the nature
