133834-65-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133834-65-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,8,3 and 4 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 133834-65:
(8*1)+(7*3)+(6*3)+(5*8)+(4*3)+(3*4)+(2*6)+(1*5)=128
128 % 10 = 8
So 133834-65-8 is a valid CAS Registry Number.
133834-65-8Relevant academic research and scientific papers
Synthesis and Reactions of α-Methylene-β-keto Sulfones
Weichert, Andreas,Hoffmann, H. Martin R.
, p. 4098 - 4112 (2007/10/02)
Modified Jones oxidation of 2-(benzenesulfonyl)-2-alken-1-ols and rapid nonnucleophilic workup below 0 deg C yields a variety of α-methylene-β-keto sulfones 4, including crystalline parent 4a and also e-h, which can be stored at -20 deg C without change.I
