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30120-73-1

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30120-73-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 30120-73-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,1,2 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 30120-73:
(7*3)+(6*0)+(5*1)+(4*2)+(3*0)+(2*7)+(1*3)=51
51 % 10 = 1
So 30120-73-1 is a valid CAS Registry Number.

30120-73-1Relevant articles and documents

Unsymmetrical benzotristhiazole: A new electron-withdrawing core for octupolar chromophores

Fueloepova, Andrea,Magdolen, Peter,Karolyiova, Miroslava,Sigmundova, Ivica,Zahradnik, Pavol

, p. 563 - 567 (2013)

A six-step synthesis of the unsymmetrical trimethylbenzotristhiazole has been developed. Starting from 2-methylbenzothiazole following nitration, reduction, acetylation, thionation, and twofold cyclization, the desired trimethylbenzotristhiazole was obtained in good yield. Its condensation with donor-substituted benzaldehydes presents the way to new octupolar chromophores. The attempt to synthesize such benzotristhiazole from dinitroaniline failed; this procedure afforded a new benzimidazole derivative.

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