189497-29-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189497-29-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,4,9 and 7 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 189497-29:
(8*1)+(7*8)+(6*9)+(5*4)+(4*9)+(3*7)+(2*2)+(1*9)=208
208 % 10 = 8
So 189497-29-8 is a valid CAS Registry Number.
189497-29-8Relevant articles and documents
Construction of novel ditopic ligands bearing fused polyaromatic and alkyne spacers
El-Ghayoury, Abdelkrim,Ziessel, Raymond
, p. 2471 - 2474 (1997)
We report the preparation of multi-component molecules based on ethynyl-substituted 2,2'-bipyridine and 2,2':6',6''-terpyridine derivatives and para substituted phenyl, naphtalene and anthracene moieties. The triple bonds play the role of a wire while the
