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46815-85-4

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46815-85-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 46815-85-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,6,8,1 and 5 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 46815-85:
(7*4)+(6*6)+(5*8)+(4*1)+(3*5)+(2*8)+(1*5)=144
144 % 10 = 4
So 46815-85-4 is a valid CAS Registry Number.

46815-85-4Relevant articles and documents

Azo dyes containing 1,3,4-thiadiazole fragment: Synthesis and properties

Amosov, Evgeny,Bagryanskaya, Irina,Karpova, Elena,Selivanova, Galina,Shundrina, Inna,Skolyapova, Alexandrina,Wang, Jiaying

supporting information, p. 1929 - 1942 (2022/01/31)

New 1,3,4-thiadiazole derivatives containing a diazenyl group, as well as both a diazenyl and an imino group, were synthesized and their optical and thermal properties were investigated. Initially, new azo compounds containing an azo group directly in the thiadiazole block were obtained by the coupling of diazonium bisulfates based on the previously known 5-derivatives of 2-amino-1,3,4-thiadiazoles with N,N-dialkyl anilines (N(n-Bu)2, NEt2, and NEt(EtOH)). Schiff bases were obtained by the interaction of p-toluidine, p-phenylenediamine and p-aminophenol with azo compounds containing an aldehyde group in the 1,3,4-thiadiazole ring. The new dyes were characterized by spectral (IR, UV, 1H NMR, 13C NMR and mass spectra) and X-ray analyses. This journal is

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