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111075-16-2

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111075-16-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111075-16-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,0,7 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 111075-16:
(8*1)+(7*1)+(6*1)+(5*0)+(4*7)+(3*5)+(2*1)+(1*6)=72
72 % 10 = 2
So 111075-16-2 is a valid CAS Registry Number.

111075-16-2Downstream Products

111075-16-2Relevant articles and documents

Stereochemical Studies on Porphyrin a: Assignment of the Absolute Configuration of a Model Porphyrin by Degradation

Battersby, Alan R.,Cardwell, Kevin S.,Leeper, Finian J.

, p. 1565 - 1580 (2007/10/02)

The synthesis is described of a porphyrin alcohol (22) which has a structure very similar to that of porphyrin a (2).The model porphyrin was resolved by separation of its camphanate esters.Ozonolysis of the 2-nitrobenzoate of each enantiomer in tritiated form gave a derivative of 2-hydroxypentadioic acid whose configuration was determined by dilution analysis.It is demonstrated that correlation of the stereochemistry of porphyrin a with that of the model (22) will be possible by means of the (1)H and (19)F n.m.r. spectra of the corresponding esters with (-)-3,3,3-trifluoro-2-methoxy-2-phenylpropanoic acid.

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