143055-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143055-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,0,5 and 5 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 143055-68:
(8*1)+(7*4)+(6*3)+(5*0)+(4*5)+(3*5)+(2*6)+(1*8)=109
109 % 10 = 9
So 143055-68-9 is a valid CAS Registry Number.
143055-68-9Relevant academic research and scientific papers
Alexandre,Belkadi,Maignan
, p. 547 - 548 (1992)
A novel chiral intermediate, 2-ethoxyethyl p-tolyl sulfoxide (4), permits access in one step to optically active α-methylene-β-oxo sulfoxides, which are very useful dienophiles.
