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397869-22-6

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397869-22-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 397869-22-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,7,8,6 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 397869-22:
(8*3)+(7*9)+(6*7)+(5*8)+(4*6)+(3*9)+(2*2)+(1*2)=226
226 % 10 = 6
So 397869-22-6 is a valid CAS Registry Number.

397869-22-6Relevant articles and documents

Synthesis and antimicrobial activity of novel pyrazole, pyrazoline, pyrazolinone and pyrazolidinedione derivatives of benzimidazole

Soliman,Habib,Ashour,El-Taiebi

, p. 140 - 148 (2007/10/03)

Four novel series of pyrazolylbenzimidazole derivatives have been prepared, namely 2-[(1-substituted phenyl-3,5-dimethyl-4-pyrazolyl) methyl]benzimidazole 5a-d 2-[(1-substituted phenyl-3-methyl-5-oxo-4,5-dihydro-4-pyrazolyl-4-yl)methyl]benzimidazoles 6a-d; 2-[(1-substituted phenyl-3,5-dioxopyrazolidin-4-yl)methyl]benzimidazoles 7a-d and 2-{[4-(1-phenyl-5-aryl-4,5-dihydro-3-pyrazolyl) phenylaminoacetyl]thio-methyl}-benzimidazoles 12a-e. The antimicrobial testing of the prepared compounds was performed using Escherichia Coli (NCTC 5933) as Gram-negative bacteria, Staphylococcus aureus (NCTC 4163) as gram-positive bacteria and Candida albicans (NCTC 5310) as yeast like fungi. The most potent compound was the pyrazolone 6a which exhibits interesting antibacterial activity against the gram-negative bacteria E. coli.

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