139047-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139047-49-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,0,4 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139047-49:
(8*1)+(7*3)+(6*9)+(5*0)+(4*4)+(3*7)+(2*4)+(1*9)=137
137 % 10 = 7
So 139047-49-7 is a valid CAS Registry Number.
139047-49-7Relevant academic research and scientific papers
Use of 2,3-Bis(phenylsulfonyl)-1-propene as a Multicoupling Reagent
Padwa, Albert,Kline, Donald N.,Murphree, S. Shaun,Yeske, Philip E.
, p. 298 - 306 (2007/10/02)
2,3-Bis(phenylsulfonyl)-1-propene (1) reacts with various amines to afford products derived from addition across the double bond as well as SN2' displacement.When treated with 2-piperidinemethanol, bissulfone 1 gave the expected SN2'
