19799-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19799-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,9 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19799-42:
(7*1)+(6*9)+(5*7)+(4*9)+(3*9)+(2*4)+(1*2)=169
169 % 10 = 9
So 19799-42-9 is a valid CAS Registry Number.
19799-42-9Relevant articles and documents
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.