cephapirin sodium

CHEBI:3545 ·resolve ·ANTIBACTERIAL ·EXACT SEEDED

The sodium salt of cephapirin. A first-generation cephalosporin antibiotic, it is effective against gram-negative and gram-positive organisms. Being more resistant to β-lactamases than penicillins, it is effective agains most staphylococci, though not methicillin-resistant staphylococci. — ChEBI

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

Strictly broader compounds or drug classes this molecule belongs to.

cephalosporin CHEBI:23066
Label unavailable CHEBI:38700

Chemical structure

Computed structure properties
Molecular formula	C17H16N3O6S2.Na
Charge	0
Average mass	445.454 Da
Monoisotopic mass	445.03782 Da
Source	ChEBI
InChIKey	VGEOUKPOQQEQSX-OALZAMAHSA-M

SMILES

[H][C@]12SCC(COC(C)=O)=C(C(=O)[O-])N1C(=O)[C@H]2NC(=O)CSc1ccncc1.[Na+]

InChI

InChI=1S/C17H17N3O6S2.Na/c1-9(21)26-6-10-7-28-16-13(15(23)20(16)14(10)17(24)25)19-12(22)8-27-11-2-4-18-5-3-11;/h2-5,13,16H,6-8H2,1H3,(H,19,22)(H,24,25);/q;+1/p-1/t13-,16-;/m1./s1

Also called

sodium (6R,7R)-3-[(acetyloxy)methyl]-8-oxo-7-{[(pyridin-4-ylsulfanyl)acetyl]amino}-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate (EXACT_SYNONYM)— chebi
Cefapirin sodium (EXACT_SYNONYM)— chebi
Cephapirin sodium (EXACT_SYNONYM)— chebi
Sodium cefapirin (EXACT_SYNONYM)— chebi
monosodium (6R,7R)-3-(hydroxymethyl)-8-oxo-7-(2-(4-pyridylthio)acetamido)-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylate acetate (EXACT_SYNONYM)— chebi
sodium 7-(pyrid-4-ylthioacetamido)cephalosporanate (EXACT_SYNONYM)— chebi

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.

Drug registries

Identifiers that name a drug rather than a structure. One of these can cover a parent compound, its salts and its stereoisomers, which this corpus keeps as separate records, so it is not an equivalence of structure.

Patents and articles

Documents about this compound. A patent covers a class and an article covers a topic; neither identifies a structure.

Activity roles

Every antimicrobial role a source asserts for this compound — the unreduced evidence behind its antimicrobial_class.

antimicrobial agent CHEBI:33281
antibacterial drug CHEBI:36047

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
CHEBI	`CHEBI:3545`	cephapirin sodium	`antibioticmech:chebi-de1b30d07e`	2026-08-30

Mechanism summary

Clinical status: APPROVED

Curation history

SEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Seeded from data/raw/ inventories (CHEBI)
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
RESEEDED_FROM_SOURCES 2026-08-31 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-09-10 · 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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