128916-70-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128916-70-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,1 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128916-70:
(8*1)+(7*2)+(6*8)+(5*9)+(4*1)+(3*6)+(2*7)+(1*0)=151
151 % 10 = 1
So 128916-70-1 is a valid CAS Registry Number.
128916-70-1Relevant 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.
