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67173-98-2

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67173-98-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67173-98-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,1,7 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 67173-98:
(7*6)+(6*7)+(5*1)+(4*7)+(3*3)+(2*9)+(1*8)=152
152 % 10 = 2
So 67173-98-2 is a valid CAS Registry Number.

67173-98-2Relevant articles and documents

Synthesis and antimicrobial activity of electron rich olefin derived cyclic ureas

Cetinkaya, Bekir,Cetinkaya, Engin,Kuecuekbay, Hasan,Durmaz, Riza

, p. 1154 - 1158 (2007/10/03)

Seventeen cyclic ureas containing imidazolidine and benzimidazoline nuclei were synthesised by the reaction of electron-rich olefins with appropriate group 16 elements (O, S, Se, Te). The compounds synthesised were identified by 1H, 13C-NMR, FT-IR and mass spectroscopic techniques and micro analysis. All compounds studied in this work were screened for their in vitro antimicrobial activity against standard strains: Enterococcus faecalis (ATCC 29212), Staphylococcus aureus (ATCC 29213), Escherichia coli (ATCC 25922) and Pseudomonas aeruginosa (ATCC 27853). Eight of the compounds were found effective to inhibit the growth of Gram-positive bacteria (Enterococcus faecalis and Staphylococcus aureus) at MIC values between 25-400 μg/ml. None of the compounds exhibit antimicrobial activity against gram-negative bacteria (Escherichia coli and Pseudmonas aeruginosa) at the concentrations studied (6.25-800 μg/ml).

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