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1289425-26-8

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1289425-26-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1289425-26-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,4,2 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1289425-26:
(9*1)+(8*2)+(7*8)+(6*9)+(5*4)+(4*2)+(3*5)+(2*2)+(1*6)=188
188 % 10 = 8
So 1289425-26-8 is a valid CAS Registry Number.

1289425-26-8Downstream Products

1289425-26-8Relevant articles and documents

Synthesis and antimicrobial and pharmacological properties of new thiosemicarbazide and 1,2,4-triazole derivatives

Popiolek, Lukasz,Dobosz, Maria,Chodkowska, Anna,Jagiello-Wojtowicz, Ewa,Kosikowska, Urszula,Malm, Anna,Mazur, Liliana,Rzaczynska, Zofia

, p. 339 - 346 (2011/06/19)

Reaction of 4-phenyl-4H-1,2,4-triazole-3-thione with ethyl bromoacetate has led to the formation of ethyl [(4-phenyl-4H-1,2,4-triazol-3-yl)sulfanyl]acetate 1, the structure of which was confirmed by X-ray analysis. In the next reaction with 80% hydrazide hydrate, appropriate hydrazide 2 was obtained, which in reaction with isothiocyanates was converted to new acyl derivatives of thiosemicarbazides 3a-3h. The cyclization of these compounds in alkaline media has led to formation of new derivatives of 5-{[(4-phenyl-4H-1,2,4-triazole-3-yl) sulfanyl]methyl}-4H-1,2,4-triazole-3(2H)-thiones 4a-4g, 4j. The structure of the compounds was confirmed by elementary analysis and IR, 1H-NMR, 13C-NMR, and MS spectra. Compounds 3a-3h and 4a-4g were screened for their antimicrobial activities, and the influence of the compounds 4a, 4b, and 4e-4g on the central nervous system of mice in behavioral tests was examined.

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