40133-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40133-45-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,1,3 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40133-45:
(7*4)+(6*0)+(5*1)+(4*3)+(3*3)+(2*4)+(1*5)=67
67 % 10 = 7
So 40133-45-7 is a valid CAS Registry Number.
40133-45-7Relevant academic research and scientific papers
De novo synthesis of thiophenes on a polymeric support
Traversone, Antonio,Brill, Wolfgang K.-D.
, p. 3535 - 3538 (2008/02/06)
The Hinsberg thiophene synthesis was expanded to support bound thioglycolic acid derived synthons, which reacted with arils to give thiophenes in high purity.
