Chemicals and Drugs

Penicillanic Acid

A building block of penicillin, devoid of significant antibacterial activity. (From Merck Index, 11th ed)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A building block of penicillin, devoid of significant antibacterial activity. (From Merck Index, 11th ed)

Chemical Identity

Chemical Information

Molecular Formula
C8H11NO3S
Molecular Weight
201.25 g/mol
CAS Registry No.
87-53-6
IUPAC Name
(2S,5R)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
InChIKey
RBKMMJSQKNKNEV-RITPCOANSA-N
SMILES
CC1([C@@H](N2[C@H](S1)CC2=O)C(=O)O)C
MeSH Unique ID
D010397
Source
PubChem CID 6891

MeSH Record

Classification

Broader headings

Narrower headings

Related Concepts

Knowledge Graph

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

1 entry terms
  • Acid, Penicillanic

MeSH Record

Aspects Covered

25 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analogs & derivatives, analysis, antagonists & inhibitors, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, economics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

Indexing Annotation

do not confuse with PENICILLIC ACID

MeSH Record

History Note

94,73-74(71-72); was PENICILLANIC ACIDS 1975-93

MeSH Record

Previous Indexing

  • Penicillins (1966-1970)
  • Thiazoles (1966-1970)

MeSH Hierarchy

Tree Numbers

MeSH Record

NLM Classification

QV 354

AMA Style

References

  1. National Library of Medicine. Penicillanic Acid. Medical Subject Headings (MeSH). 2026. Unique ID D010397. http://id.nlm.nih.gov/mesh/2026/D010397
  2. Penicillanic Acid. In: Wikidata. https://www.wikidata.org/wiki/Q27117271
  3. Penicillanic Acid. In: PubChem Compound. CID 6891. https://pubchem.ncbi.nlm.nih.gov/compound/6891