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72857-23-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72857-23-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,8,5 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 72857-23:
(7*7)+(6*2)+(5*8)+(4*5)+(3*7)+(2*2)+(1*3)=149
149 % 10 = 9
So 72857-23-9 is a valid CAS Registry Number.

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72857-23-9Relevant articles and documents

Preferential solvation and molecular orbital calculation studies of solvatochromic mesoionic 2,3-diaryl-2H-tetrazolium-5-thiolate derivatives

Taha,Kiwan

, p. 502 - 508 (2001)

Solvent effects on the electronic spectra of some mesoionic 2,3-diaryl-2H-tetrazolium-5-thiolate derivatives were investigated in thirteen pure solvents and eight water-organic solvent mixtures. In pure solvents, the solvatochromic shifts of the mesoionic

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