quinacillin

CHEBI:192379 ·resolve ·ANTIBACTERIAL ·EXACT SEEDED

A semisynthetic penicillase-resistant penicillin with antibacterial activity; it binds to and inactivates penicillin-binding proteins (PBPs) located on the inner membrane of the bacterial cell wall. — 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.

penicillin CHEBI:17334
Label unavailable CHEBI:38771

Chemical structure

Computed structure properties
Molecular formula	C18H16N4O6S
Charge	0
Average mass	416.415 Da
Monoisotopic mass	416.07906 Da
Source	ChEBI
InChIKey	GPMSLJIYNWBYEL-TYNCELHUSA-N

SMILES

[H][C@]12SC(C)(C)[C@H](C(=O)O)N1C(=O)[C@H]2NC(=O)c1nc2ccccc2nc1C(=O)O

InChI

InChI=1S/C18H16N4O6S/c1-18(2)12(17(27)28)22-14(24)11(15(22)29-18)21-13(23)9-10(16(25)26)20-8-6-4-3-5-7(8)19-9/h3-6,11-12,15H,1-2H3,(H,21,23)(H,25,26)(H,27,28)/t11-,12+,15-/m1/s1

Also called

quinacilina (INN)— chebi
quinacilline (INN)— chebi
quinacillinum (INN)— chebi
3-{[(2S,5R,6R)-2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-6-yl]carbamoyl}quinoxaline-2-carboxylic acid (EXACT_SYNONYM)— chebi
(2S,5R,6R)-6-[(3-carboxyquinoxaline-2-carbonyl)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (EXACT_SYNONYM)— chebi
(3-carboxy-2-quinoxalinyl)penicillin (EXACT_SYNONYM)— chebi
3-carboxy-2-quinoxalinylpenicillanic acid (EXACT_SYNONYM)— chebi
6-(3-Carboxy-2-chinoxalinecarboxamido)-3,3-dimethyl-7-oxo-4-thia-azabicyclo(3.2.0)heptan-2-carbonsaeure (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.

cas:1596-63-0

Patents and articles

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

wikipedia.en:Quinacillin

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:192379`	quinacillin	`antibioticmech:chebi-76418de2e8`	2026-08-30

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 2026-09-10 · 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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