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120389-73-3

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120389-73-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120389-73-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,3,8 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 120389-73:
(8*1)+(7*2)+(6*0)+(5*3)+(4*8)+(3*9)+(2*7)+(1*3)=113
113 % 10 = 3
So 120389-73-3 is a valid CAS Registry Number.

120389-73-3Downstream Products

120389-73-3Relevant articles and documents

Complex formation and spectral properties of meso- phenyltetrabenzoporphyrins in pyridine and N,N-dimethylformamide

Berezin,Toldina,Kudrik

, p. 1309 - 1314 (2003)

Contributions of structural (macroring distortion) and polarization (in asymmetrically substituted derivatives) effects into the reactivity and chromophoric properties of substituted porphyrins were revealed on the basis of the kinetics of complex formation of nona-, deca-, undeca-, and dodecasubstituted porphyrins (meso-phenyltetrabenzoporphyrins) with Zn(OAc) 2 in pyridine and the electronic absorption spectra of the ligands and their complexes with Zn(II) and Cu(II) in pyridine and N,N-dimethylformamide (DMF). Dodecaphenyl substitution produces a weaker ring distortion in the more aromatic tetrabenzoporphyrin compared with porphyrins themselves. Irrespective of the degree of macroring nonplanarity, the Zn (II) and Cu complexes of tetrabenzoporphyrins with increasing degree of meso-phenyl substitution meet a spectral stability criterion.

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