METANILIC ACID
UNII OT03NUM20P

Substance Identification & Data

This profile provides standardized clinical and technical data for Metanilic Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) OT03NUM20P.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 121-47-1 and the RxNorm Concept ID (RxCUI) N/A. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
OT03NUM20P
CAS Registry Number
121-47-1
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
METANILIC ACID
Official standardized name for this substance within the FDA UNII nomenclature system.
InChIKey
C6H7NO3S
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
ZAJAQTYSTDTMCU-UHFFFAOYSA-N
Line notation for describing the chemical structure and connectivity of atoms.
PubChem CID
Unique identification number in the NCBI database of chemical substances.
Substance Type
chemical
ISO 11238 classification category (e.g., Chemical, Polymer, Protein).
Ingredient Role
c1(cc(ccc1)N)S(O)(=O)=O

Synonyms and Nomenclature

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

Common Names & Synonyms

AMINOBENZENESULFONIC ACID, M-
BENZENESULFONIC ACID, 3-AMINO-
METANILIC ACID
METANILIC ACID [MI]

Systematic Nomenclature

3-AMINOBENZENESULFONIC ACID
ANILINE-M-SULFONIC ACID
M-AMINOBENZENESULFONIC ACID
M-SULFANILIC ACID

Technical Codes

NSC-4504