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 4.0E-5 dalton. Try search metabolite list with more accurate mass tolerance error 8.0E-6 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)