MEZLOCILLIN
UNII OH2O403D1G

Substance Identification & Data

This profile provides standardized clinical and technical data for Mezlocillin, uniquely identified by the FDA Unique Ingredient Identifier (UNII) OH2O403D1G.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 51481-65-3 and the RxNorm Concept ID (RxCUI) 6927. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

OH2O403D1G

CAS Registry Number

51481-65-3

RxNorm Concept ID

6927

Detailed Substance Profile

Preferred Name

MEZLOCILLIN

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

InChIKey

C21H25N5O8S2

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

YPBATNHYBCGSSN-VWPFQQQWSA-N

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

NCI Thesaurus

C653

National Cancer Institute reference terminology for clinical and research data.

PubChem CID

656511

Unique identification number in the NCBI database of chemical substances.

INN ID

3898

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([C@H](NC(N3C(N(S(=O)(=O)C)CC3)=O)=O)c4ccccc4)=O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Mezlocillin. 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.

FDA Official Name

MEZLOCILLIN

Common Names & Synonyms

4-THIA-1-AZABICYCLO(3.2.0)HEPTANE-2-CARBOXYLIC ACID, 3,3-DIMETHYL-6-(((((3-(METHYLSULFONYL)-2-OXO-1-IMIDAZOLIDINYL)CARBONYL)AMINO)PHENYLACETYL)AMINO)-7-OXO-, (2S-(2.ALPHA.,5.ALPHA.,6.BETA.(S*)))

MEZLOCILLIN [INN]

MEZLOCILLIN [MART.]

MEZLOCILLIN [MI]

MEZLOCILLIN [USAN]

MEZLOCILLIN [VANDF]

MEZLOCILLIN [WHO-DD]

Systematic Nomenclature

(2S,5R,6R)-3,3-DIMETHYL-6-((R)-2-(3-(METHYLSULFONYL)-2-OXO-1-IMIDAZOLIDINECARBOXAMIDO)-2-PHENYLACETAMIDO)-7-OXO-4-THIA-1-AZABICYCLO(3.2.0)HEPTANE-2-CARBOXYLIC ACID

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