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255391-09-4

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255391-09-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 255391-09-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,5,3,9 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 255391-09:
(8*2)+(7*5)+(6*5)+(5*3)+(4*9)+(3*1)+(2*0)+(1*9)=144
144 % 10 = 4
So 255391-09-4 is a valid CAS Registry Number.

255391-09-4Downstream Products

255391-09-4Relevant articles and documents

Synthesis and in vitro antibacterial activity of 5-halogenomethylsulfonyl- benzimidazole and benzotriazole derivatives

Ochal, Zbigniew,Bretner, Maria,Wolinowska, Renata,Tyski, Stefan

, p. 1129 - 1136 (2014/01/06)

A series of 5-halogenomethylsulfonylbenzimidazole and benzotriazole derivatives was synthesized as potential antibacterial agents. A new method of synthesis of benzimidazoles was developed. The antimicrobial activities of these compounds were tested against a series of reference and clinical strains. The reference strains include Gram-positive bacteria (S. aureus, S. epidermidis, B. subtilis, B. cereus, E. hirae, M. luteus) and Gram-negative rods (E. coli, P. vulgaris, P. aeruginosa, B. bronchiseptica). The clinical strains include six methicillin-resistant (MRSA) and two methicillin-sensitive (MSSA) S. aureus strains, one methicillin-resistant S. epidermidis, three E. faecalis and two E. faecium strains. Compound with trifluoromethyl- substituent at C-2 position (4) displayed significant antibacterial activities comparable with nitrofurantoin against four strains, and higher against Micrococcus luteus. MIC values for clinical Staphylococci strains (MRSA) were 12.5-25 μg/mL; for Enterococcus strains these values were 50-100 μg/mL. MIC values for reference and clinical strains of Staphylococcus and Enterococcus group were similar, respectively.

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