ceftiofur

CHEBI:31383 ·resolve ·ANTIBACTERIAL ·EXACT SEEDED

Ceftiofur is a third-generation broad spectrum cephalosporin and beta-lactam antibiotic predominantly used in veterinary medicine. It causes cell lysis by disrupting peptidoglycan cross-linkage and cell wall formation by binding to PBPs. — PMID:3631686

Machine-generated and unreviewed. Identity, structure and cross-references come straight from ChEBI's and CARD's own data; no curator has signed off on this record yet.

Classification

cephalosporinARO:0000032

Strictly broader compounds or drug classes this molecule belongs to.

cephalosporin ARO:0000032

Chemical structure

Computed structure properties
Molecular formula	C19H16N5O7S3.Na
Charge	0
Average mass	545.556 Da
Monoisotopic mass	545.01096 Da
Source	ChEBI
InChIKey	RFLHUYUQCKHUKS-JUODUXDSSA-M

SMILES

[H][C@]12SCC(CSC(=O)c3ccco3)=C(C(=O)[O-])N1C(=O)[C@H]2NC(=O)/C(=N\OC)c1csc(N)n1.[Na+]

InChI

InChI=1S/C19H17N5O7S3.Na/c1-30-23-11(9-7-34-19(20)21-9)14(25)22-12-15(26)24-13(17(27)28)8(5-32-16(12)24)6-33-18(29)10-3-2-4-31-10;/h2-4,7,12,16H,5-6H2,1H3,(H2,20,21)(H,22,25)(H,27,28);/q;+1/p-1/b23-11-;/t12-,16-;/m1./s1

Also called

Excenel (EXACT_SYNONYM)— aro
Naxcel (EXACT_SYNONYM)— aro

Cross-references

Identifiers for this same structure in other resources. An accession that lands on two different structures in this corpus is withheld from both rather than shown here, since it names at most one of them.

Source concepts

Every upstream concept that resolved to this record. The merge is the product: this is what shows ChEBI and CARD are describing the same structure.

Upstream concepts merged into this record
Source	Native ID	Label	Minted CURIE	Version
ARO	`ARO:3004006`	ceftiofur	`antibioticmech:aro-0ad6dfa51b`	2026-08-30

Molecular targets

The molecular entity or process this compound acts on. Each target carries evidence — this is a mechanistic claim, not a classification.

beta-lactam sensitive penicillin-binding protein PROTEIN DIRECT_BINDING_TARGET

ARO:3000749

CARD/ARO database assertion; target organism, strain, and assay are not specified. Penicillin-binding proteins are asserted as inhibited transpeptidases. Evidence status: PRIMARY_EVIDENCE_NEEDED. Source: CARD_ARO 2026-08-30 (retrieved 2026-08-30).

ARO:3000749 (CARD/ARO asserts targeted_by_antibiotic ARO:3004006 (ceftiofur); database assertion, not a primary citation.)

Resistance mechanisms

1 source-backed resistance determinants or associations, with ARO grounding where reported. Grouped by reported mechanism type.

ANTIBIOTIC_INACTIVATION 1

ANTIBIOTIC_INACTIVATION
Determinant	ARO ID	Organism	Gene families	Evidence
EBR-5	ARO:3007437	not organism-specific	—	ARO:3007437 (CARD/ARO asserts confers_resistance_to_antibiotic ARO:3004006 (ceftiofur); database assertion, not a primary citation.)

Curation history

SEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Seeded from data/raw/ inventories (ARO)
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-08-31 · seed_from_sources
Re-seeded from updated data/raw/ inventories

Provenance

Seeded by scripts/seed_from_sources.py from the committed inventories in data/raw/. View the record (YAML).

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