195371-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 195371-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,5,3,7 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 195371-28:
(8*1)+(7*9)+(6*5)+(5*3)+(4*7)+(3*1)+(2*2)+(1*8)=159
159 % 10 = 9
So 195371-28-9 is a valid CAS Registry Number.
195371-28-9Relevant articles and documents
A simple reduction of α-bromosulfones by cat.(PhSe)2/NaBH4
Yoshimatsu, Mitsuhiro,Ohara, Megumi
, p. 5651 - 5654 (2007/10/03)
Reduction of α-bromosulfones 1, 5, 13-16 by cat.(PhSe)2/NaBH4 occurred site-selectively in high yields. This reduction of 1,3- or 1,4-dibromobis(sulfone) 21 and 25 was applied to intramolecular coupling reactions to give the three- and four-membered carbocycles 26-28.
