Basic information
- Standard SMILES
CO/N=C(\C(=O)N[C@@H]1C(=O)N2C(C(=O)O)=C(COC(C)=O)CS[C@H]12)c1csc(N)n1- InChIKey
GPRBEKHLDVQUJE-QSWIMTSFSA-N- Molecular formula
- C16H17N5O7S2
- Average molar mass
- 455.5 g/mol
- Monoisotopic mass
- 455.05693988
Overview
Cefotaxime is a cephalosporin compound having acetoxymethyl and [2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side groups. It has a role as an antibacterial drug and a drug allergen. It is a cephalosporin, an oxime O-ether and a member of 1,3-thiazoles. It is a conjugate acid of a cefotaxime(1-).
Names & identifiers
- Preferred name
- Cefotaxime
- IUPAC
- (6R,7R)-3-(acetyloxymethyl)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
- English name
- (6R,7R)-3-(Acetoxymethyl)-8-oxo-7-[(2-amino-4-thiazolyl)(methoxyimino)acetylamino]-5-thia-1-azabicyclo[4.2.0]octa-2-ene-2-carboxylic acid
- Molecular formula
- C16H17N5O7S2
- Molecular weight
- 455.47
Names & synonyms
Show more names
Database identifiers
- CAS
60846-21-1、63527-52-6- PubChem CID
- 5742673
- DTXSID
DTXSID6022761- ChEMBL
CHEMBL1730- ChEBI
CHEBI:204928- UNII
- N2GI8B1GK7
- EC Number
- 264-299-1
- Nikkaji
- J18.743G
Properties
Computed structural properties
- XLogP
- -1.4
- Topological polar surface area
- 227 Ų
- Hydrogen bond donors
- 3
- Hydrogen bond acceptors
- 12
- Rotatable bonds
- 8
- Heavy atoms
- 30
- Formal charge
- 0
- Complexity
- 833
Experimental & physicochemical properties
Drugs
Pharmaceuticals -> Listed in ZINC15
Pharmaceuticals -> Antibiotics
Pharmaceuticals -> Antibiotics
Solubility
Soluble
1.46e-01 g/L
Human Drugs
Breast Feeding; Lactation; Milk, Human; Anti-Infective Agents; Antibacterial Agents; Cephalosporins
Watch group antibiotics
Physicochemical properties
- Density
- 1.802 · 1.802±0.14 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted)
- pka
- 2.66 · 2.660±0.50(predicted)
Safety & regulation
GHS classification
GHS Classification
Danger
H315 (58.8%): Causes skin irritation [Warning Skin corrosion/irritation]
P233, P260, P261, P264, P264+P265, P271, P272, P280, P284, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P333+P317, P337+P317, P342+P316, P362+P364, P403, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 17 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Toxicology
Toxicity Summary
Cefotaxime is metabolized by the liver and excreted through the kidneys, and dysfunctions may result in decreased drug clearance leading to increased plasma concentrations. About 50 to 60% of the agent is excreted unchanged, and 15 to 20% is excreted as a desacetyl metabolite desacetylcefotaxime. Toxicity may result in convulsions, dyspnea, hypothermia, cyanosis, reversible encephalopathy, and death. Mortality has occurred with dosages of 6000 mg/kg/day. Treatment for cefotaxime toxicity requires supportive management.
Drug Induced Liver Injury
Drug-Induced Liver Injury Severity and Toxicity (DILIst)
cefotaxime
DILI Positive
Intravenous
DOI:10.1016/j.drudis.2019.09.022
Chemistry & industry
Pharmacology
ATC Code
J - Antiinfectives for systemic use
QJ - Antiinfectives for systemic use
J01DD01
Pharmacodynamics
Cefotaxime is a third generation intravenous cephalosporin antibiotic. It has broad spectrum activity against Gram positive and Gram negative bacteria. It does not have activity against <i>Pseudomonas aeruginosa</i>. Cefotaxime works by inhibiting bacterial cell wall biosynthesis. A positive feature of cefotaxime is that it display a resistance to penicillinases and is useful to treat infections that are resistant to penicillin derivatives.
Mechanism of Action
The bactericidal activity of cefotaxime results from the inhibition of cell wall synthesis via affinity for penicillin-binding proteins (PBPs). Cefotaxime shows high affinity for penicillin-binding proteins in the cell wall including PBP Ib and PBP III.
Metabolism/Metabolites
Approximately 20-36% of an intravenously administered dose of 14C-cefotaxime is excreted by the kidney as unchanged cefotaxime and 15-25% as the desacetyl derivative, the major metabolite. The desacetyl metabolite has been shown to contribute to the bactericidal activity. Two other urinary metabolites (M2 and M3) account for about 20-25%. They lack bactericidal activity.
FDA Pharmacological Classification
N2GI8B1GK7
CEFOTAXIME
Established Pharmacologic Class [EPC] - Cephalosporin Antibacterial
Chemical Structure [CS] - Cephalosporins
Cefotaxime is a Cephalosporin Antibacterial.
CEFOTAXIME
Absorption, Distribution and Excretion
Rapidly absorbed following intramuscular injection.
Approximately 20-36% of an intravenously administered dose of 14C-cefotaxime is excreted by the kidney as unchanged cefotaxime and 15-25% as the desacetyl derivative, the major metabolite.
Uses & manufacturing
Suppliers50 total
Additional notes
DefinitionChEBI: Cefotaxime is a cephalosporin compound having acetoxymethyl and [2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side groups. It has a role as a drug allergen and an antibacterial drug. It is a member of 1,3-thiazoles, an oxime O-ether and a cephalosporin. It is a conjugate acid of a cefotaxime(1-).
Related reactions
Linked notes
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