ACETOHYDROXAMIC ACID
UNII 4RZ82L2GY5

Substance Identification & Data

This profile provides standardized clinical and technical data for Acetohydroxamic Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 4RZ82L2GY5.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 546-88-3 and the RxNorm Concept ID (RxCUI) 16728. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

4RZ82L2GY5

CAS Registry Number

546-88-3

RxNorm Concept ID

16728

Detailed Substance Profile

Preferred Name

ACETOHYDROXAMIC ACID

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

Molecular Formula

4RZ82L2GY5

The specific atomic composition represented as a molecular structure string.

InChIKey

C2H5NO2

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

RRUDCFGSUDOHDG-UHFFFAOYSA-N

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

NCI Thesaurus

C47381

National Cancer Institute reference terminology for clinical and research data.

PubChem CID

1990

Unique identification number in the NCBI database of chemical substances.

INN ID

5491

Sequential identifier assigned via the WHO International Nonproprietary Name program.

USAN ID

U-57

Identifier assigned by the United States Adopted Names Council.

Substance Type

chemical

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

Ingredient Role

C(=O)(NO)C

Synonyms and Nomenclature

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