Cas 77544-34-4,C27H23N2O(1+)*CH3O4S(1-)

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Check Digit Verification of cas no

The CAS Registry Mumber 77544-34-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,4 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 77544-34:
(7*7)+(6*7)+(5*5)+(4*4)+(3*4)+(2*3)+(1*4)=154
154 % 10 = 4
So 77544-34-4 is a valid CAS Registry Number.

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77544-34-4Relevant academic research and scientific papers

HEMICYANINE AND AZAHEMICYANINE CATIONIC DYES CONTAINING AN ANTHRAPYRIDINIUM RING

Gorelik, M. V.,Arinich, A. K.

, p. 172 - 175 (1981)

Green dyes were obtained by the reaction of 2,3-dimethylanthrapyridinium methylsulfate with N,N-disubstituted p-aminobenzaldehydes and p-nitrosoanilines.The features of the electronic spectra of the dyes are discussed.

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