197807-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197807-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,8,0 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 197807-83:
(8*1)+(7*9)+(6*7)+(5*8)+(4*0)+(3*7)+(2*8)+(1*3)=193
193 % 10 = 3
So 197807-83-3 is a valid CAS Registry Number.
197807-83-3Relevant articles and documents
Soluble thienylenevinylene oligomers end-capped with 1,3-dithiole-2-ylidene groups
Elandaloussi, El Hadj,Frere, Pierre,Roncali, Jean
, p. 6121 - 6124 (1996)
The synthesis of thienylenevinylene oligomers end-capped with 1,3-dithiole-2-ylidene is described. CV analysis shows that these compounds can be oxidized up to their tetracationic state within a narrow potential window.