137091-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137091-70-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,9 and 1 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137091-70:
(8*1)+(7*3)+(6*7)+(5*0)+(4*9)+(3*1)+(2*7)+(1*0)=124
124 % 10 = 4
So 137091-70-4 is a valid CAS Registry Number.
137091-70-4Relevant 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'
