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73747-27-0

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73747-27-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73747-27-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,7,4 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 73747-27:
(7*7)+(6*3)+(5*7)+(4*4)+(3*7)+(2*2)+(1*7)=150
150 % 10 = 0
So 73747-27-0 is a valid CAS Registry Number.
InChI:InChI=1/C5H8N2O/c1-2-4(3-6)5(7)8/h4H,2H2,1H3,(H2,7,8)

73747-27-0Relevant articles and documents

Cephalosporin compounds

-

, (2008/06/13)

The present invention relates to new cephalosporin compounds of the formula(I), pharmaceutically acceptable non-toxic salts thereof, and physiologically hydrolyzable esters and solvates thereof, which have potent and broad antibacterial activities STR1 wherein R1 is a C1?4 alkyl, C3?4 alkenyl, C3?4 alkynyl group, or --C(Ra)(Rb)CO2 H1 wherein Ra and Rb are the same or different, and each is a hydrogen atom or a C1?4 alkyl group, or Ra and Rb form a C3?7 cycloalkyl group with the carbon atom to which they are linked; R2 is a C1?4 alkyl, C3?4 alkenyl or C3?4 cycloalkyl group, a substituted or unsubstituted amino group, or a substituted or unsubstituted phenyl group; R3 is hydrogen or a C1?4 alkyl group; and Q is N or CH. The invention further relates to a process for preparing said compounds, and to pharamaceutical compositions containing said compounds.

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