115943-74-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 115943-74-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,9,4 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 115943-74:
(8*1)+(7*1)+(6*5)+(5*9)+(4*4)+(3*3)+(2*7)+(1*4)=133
133 % 10 = 3
So 115943-74-3 is a valid CAS Registry Number.
115943-74-3Relevant articles and documents
Cycloadditions, 13. - Reactions of Ynamines with 1,1-Bis(phenylsulfonyl)olefines
Himbert, Gerhard,Kosack, Steffen
, p. 2053 - 2058 (2007/10/02)
Ynamines 1 and β,β-bis(phenylsulfonyl)styrene (2) or 1,1-bis(phenylsulfonyl)ethylene (5) react by regiospecific cycloaddition to give the 4,4-bis(phenylsulfonyl)-1-cyclobutenylamines 3 or 6, respectively.While the former spontaneously form the open-