137059-42-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137059-42-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,5 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 137059-42:
(8*1)+(7*3)+(6*7)+(5*0)+(4*5)+(3*9)+(2*4)+(1*2)=128
128 % 10 = 8
So 137059-42-8 is a valid CAS Registry Number.
137059-42-8Relevant articles and documents
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'
