139952-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139952-13-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,5 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 139952-13:
(8*1)+(7*3)+(6*9)+(5*9)+(4*5)+(3*2)+(2*1)+(1*3)=159
159 % 10 = 9
So 139952-13-9 is a valid CAS Registry Number.
139952-13-9Relevant academic research and scientific papers
Evidence for stereoelectronic control in the epoxidation of sterically unbiased 3,3-diarylcyclopentenes
Halterman,McEvoy
, p. 753 - 756 (2007/10/02)
Epoxidations of the sterically unbiased olefin, 3-(4-X-phenyl)-3-phenylcyclopentene (X = NO2, Br, Cl, OCH3) with peracetic acid have been found to proceed with up to 73.27 stereoselectivity. Stereochemistry of the products was determ
