Exact Mass: 546.0991

Exact Mass Matches: 546.0991

Found 8 metabolites which its exact mass value is equals to given mass value 546.0991, within given mass tolerance error 0.0002 dalton. Try search metabolite list with more accurate mass tolerance error 4.0E-5 dalton.

Ceftazidime

(6R,7R)-7-{[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-{[(2-carboxypropan-2-yl)oxy]imino}acetyl]amino}-8-oxo-3-(pyridinium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

C22H22N6O7S2 (546.0991)

Ceftazidime is only found in individuals that have used or taken this drug. It is a semisynthetic, broad-spectrum antibacterial derived from cephaloridine and used especially for Pseudomonas and other gram-negative infections in debilitated patients. [PubChem]The bactericidal activity of ceftazidime results from the inhibition of cell wall synthesis via affinity for penicillin-binding proteins (PBPs). J - Antiinfectives for systemic use > J01 - Antibacterials for systemic use > J01D - Other beta-lactam antibacterials > J01DD - Third-generation cephalosporins D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D002511 - Cephalosporins D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D047090 - beta-Lactams D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D007769 - Lactams

Ceftazidime anhydrous

1-({7-[2-(2-amino-1,3-thiazol-4-yl)-2-[(1-carboxy-1-methylethoxy)imino]acetamido]-2-carboxylato-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl}methyl)pyridin-1-ium

C22H22N6O7S2 (546.0991)

Ceftazidime

C22H22N6O7S2 (546.0991)

A cephalosporin bearing pyridinium-1-ylmethyl and {[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-{[(2-carboxypropan-2-yl)oxy]imino}acetamido groups at positions 3 and 7, respectively, of the cephem skeleton. J - Antiinfectives for systemic use > J01 - Antibacterials for systemic use > J01D - Other beta-lactam antibacterials > J01DD - Third-generation cephalosporins D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D002511 - Cephalosporins D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D047090 - beta-Lactams D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents > D007769 - Lactams CONFIDENCE standard compound; EAWAG_UCHEM_ID 3238

1-[[(6R,7R)-7-[[(2E)-(2-Amino-4-thiazolyl)[(1-carboxy-1-methylethoxy)imino]acetyl]amino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-pyridinium inner salt

C22H22N6O7S2 (546.0991)

2-Ceftazidime

C22H22N6O7S2 (546.0991)

7-{[(2E)-2-(2-amino-1,3-thiazol-4-yl)-2-{[(2-carboxypropan-2-yl)oxy]imino}acetyl]amino}-8-oxo-3-(pyridinium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

C22H22N6O7S2 (546.0991)

1-{[(6R,7R)-2-carboxy-7-[(2Z)-2-[(1-carboxylato-1-methylethoxy)imino]-2-(2-imino-2,3-dihydro-1,3-thiazol-4-yl)acetamido]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl}pyridin-1-ium

C22H22N6O7S2 (546.0991)

1-{[(6r,7r)-2-carboxy-7-{[(2z)-2-[(1-carboxylato-1-methylethoxy)imino]-1-hydroxy-2-(2-imino-3h-1,3-thiazol-4-yl)ethylidene]amino}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl}pyridin-1-ium

C22H22N6O7S2 (546.0991)