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750646-77-6

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750646-77-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 750646-77-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,0,6,4 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 750646-77:
(8*7)+(7*5)+(6*0)+(5*6)+(4*4)+(3*6)+(2*7)+(1*7)=176
176 % 10 = 6
So 750646-77-6 is a valid CAS Registry Number.

750646-77-6Relevant articles and documents

Metal complexation of 1-acyldipyrromethanes and porphyrins formed therefrom

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Page/Page column 7; 8, (2008/06/13)

A first aspect of the invention is a method of making a porphyrin-metal complex, comprising: (a) providing a first reagent selected from the group consisting of 1-acyldipyrromethanes, 1-acyldipyrrins, dipyrromethane-1-carbinols 1,9-diacyldipyrromethanes and 1,9-diacyldipyrrins; and then (b) condensing the first reagent with either itself (in the case of 1-acyldipyrromethanes, 1-acyldipyrrins, and dipyrromethane-1-carbinols) or a dipyrromethane (in the case of 1,9-diacyldipyrromethanes and 1,9-diacyldipyrrins) in a reaction mixture comprising a solvent and a second reagent selected from the group consisting of palladium and copper complexes to produce the porphyrin-metal complex (with the metal being palladium or copper). In preferred embodiments of the foregoing, the reaction mixture further comprises a base such as KOH or NaH.

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