75233-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75233-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,3 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 75233-20:
(7*7)+(6*5)+(5*2)+(4*3)+(3*3)+(2*2)+(1*0)=114
114 % 10 = 4
So 75233-20-4 is a valid CAS Registry Number.
75233-20-4Relevant articles and documents
Lewis Acid Catalyzed Ene Reactions of Ethynyl p-Tolyl Sulfone
Snider, Barry B.,Kirk, Thomas C.,Roush, David M.,Gonzalez, Domingo
, p. 5015 - 5017 (2007/10/02)
Ethynyl p-tolyl sulfone undergoes EtAlCl2-catalyzed ene reactions with alkenes to give 1,4-dienyl p-tolyl sulfones in good yield.