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911709-56-3

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911709-56-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 911709-56-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,1,7,0 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 911709-56:
(8*9)+(7*1)+(6*1)+(5*7)+(4*0)+(3*9)+(2*5)+(1*6)=163
163 % 10 = 3
So 911709-56-3 is a valid CAS Registry Number.

911709-56-3Downstream Products

911709-56-3Relevant academic research and scientific papers

Methods and intermediates for the synthesis of porphyrins

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Page/Page column 18-20, (2008/06/13)

A method of making a porphyrin (I) is carried out by condensing (i) a bis(imino)dipyrromethane of Formula II: with (ii) a dipyrromethaneto produce a reaction product; then (b) optionally oxidizing said reaction product with an oxidizing agent; and then (c) optionally demetallating said reaction product to produce the porphyrin. Methods of making compounds of Formula II are also described.

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