METHICILLIN
UNII Q91FH1328A

Substance Identification & Data

This profile provides standardized clinical and technical data for Methicillin, uniquely identified by the FDA Unique Ingredient Identifier (UNII) Q91FH1328A.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 61-32-5 and the RxNorm Concept ID (RxCUI) 2181306. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

Q91FH1328A

CAS Registry Number

61-32-5

RxNorm Concept ID

2181306

Detailed Substance Profile

Preferred Name

METHICILLIN

Official standardized name for this substance within the FDA UNII nomenclature system.

InChIKey

C17H20N2O6S

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

RJQXTJLFIWVMTO-TYNCELHUSA-N

Line notation for describing the chemical structure and connectivity of atoms.

NCI Thesaurus

C61842

National Cancer Institute reference terminology for clinical and research data.

PubChem CID

6087

Unique identification number in the NCBI database of chemical substances.

INN ID

1103

Sequential identifier assigned via the WHO International Nonproprietary Name program.

Substance Type

chemical

ISO 11238 classification category (e.g., Chemical, Polymer, Protein).

Ingredient Role

N12[C@@](SC([C@@H]1C(O)=O)(C)C)([H])[C@@H](C2=O)NC(c3c(OC)cccc3OC)=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Methicillin. Identifiers are organized into official regulatory terms, commercial trade names, and technical systematic synonyms used to ensure accurate identification across clinical pharmaceutical databases, regulatory filings, and electronic health records.