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82475-16-9

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82475-16-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82475-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,4,7 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 82475-16:
(7*8)+(6*2)+(5*4)+(4*7)+(3*5)+(2*1)+(1*6)=139
139 % 10 = 9
So 82475-16-9 is a valid CAS Registry Number.

82475-16-9Downstream Products

82475-16-9Relevant articles and documents

BOTH-FACES HINDERED PORPHYRINS. PART 2. SYNTHESIS AND CHARACTERIZATION OF INTERNALLY FIVE-CO-ORDINATED IRON(II)BASKET-HANDLE PORPHYRINS DERIVED FROM 5,10,15,20-TETRAKIS(O-HYDROXYPHENYL)PORPHYRIN

Momenteau, Michel,Mispelter, Joel,Loock, Bernard,Lhoste, Jean-Marc

, p. 61 - 70 (2007/10/02)

Compounds (9), so-called ether 'hanging base' porphyrins, derived from 5,10,15,20-tetrakis(o-hydroxyohenyl)porphyrin in which one of the faces is hindered by a pyridine-3,5-diylbisalkylene bridge and the other face is protected by an alkylene or an p-arylenebisalkylene chain have been synthesized following the concept of the 'basket handle' porphyrins (BHP).From an analysis of the 1H n.m.r. spectra of the iron(II) derivatives (20) at 34 degC, it has been determined that ca. 85percent were high-spin five-coordinated complexes (s=2).Despite the steric hindrance of the distal face, bimolecular associations typical for this class of compounds have been detected except for the most hindered (20c).An additional bispyridine 'basket handle' porphyrin (21) has been synthesized in order to study the dynamics of the pyridine chain.

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