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320573-11-3

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320573-11-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 320573-11-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,0,5,7 and 3 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 320573-11:
(8*3)+(7*2)+(6*0)+(5*5)+(4*7)+(3*3)+(2*1)+(1*1)=103
103 % 10 = 3
So 320573-11-3 is a valid CAS Registry Number.

320573-11-3Relevant articles and documents

A highly regioselective Sonogashira coupling as a key step in the preparation of the first phenanthroline with two diverse reactive groups in 3,8-positions

Liu, Shi-Xia,Michel, Christoph,Schmittel, Michael

, p. 3959 - 3962 (2000)

(Matrix presented) The preparation of 3,8-unsymmetric phenanthrolines is described. Desymmetrization of 3,8-dibromophenanthroline was achieved after monoarylation followed by regioselective Pd-catalyzed monoalkynylation that was controlled by the methoxy

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