148731-40-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 148731-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,7,3 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 148731-40:
(8*1)+(7*4)+(6*8)+(5*7)+(4*3)+(3*1)+(2*4)+(1*0)=142
142 % 10 = 2
So 148731-40-2 is a valid CAS Registry Number.
148731-40-2Relevant academic research and scientific papers
α-lactam intermediates in base-promoted reactions of O-sulfonylated hydroxamic acids with nucleophiles
Hoffman, Robert V.,Nayyar, Naresh K.,Chen, Wenting
, p. 5031 - 5034 (2007/10/02)
The reaction of N-(sulfonyloxy) amides with bases proceeds by initial formation of an α-lactam intermediate. A primary kinetic deuterium isotope effect, kH/kD = 2.17, a leaving group effect, β1gCH3 = 0.50, and n
