133308-58-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133308-58-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,3,0 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133308-58:
(8*1)+(7*3)+(6*3)+(5*3)+(4*0)+(3*8)+(2*5)+(1*8)=104
104 % 10 = 4
So 133308-58-4 is a valid CAS Registry Number.
133308-58-4Relevant academic research and scientific papers
Diporphyrinyl Derivatives of 1,10-Phenanthroline and 2,2'-Bipyridyl
Kus, Piotr,Knerr, Gary,Czuchajowski, Leszek
, p. 7 - 11 (2007/10/02)
The title derivatives were synthesized containing two meso-tri-p-tolylphenyleneporphyrin units attached via amide bridges to 4,7- and 4,4' positions of the respective heteroatomatic spacers.
