SULFANILIC ACID
UNII 434Z8C2635

Substance Identification & Data

This profile provides standardized clinical and technical data for Sulfanilic Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 434Z8C2635.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 121-57-3 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
434Z8C2635
CAS Registry Number
121-57-3
RxNorm Concept ID
N/A

Detailed Substance Profile

Preferred Name
SULFANILIC 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
HVBSAKJJOYLTQU-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
c1cc(ccc1N)S(=O)(=O)O

Synonyms and Nomenclature

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

ANILINE-4-SULFONIC ACID
ANILINE-P-SULFONIC ACID
P-AMINOBENZENESULFONIC ACID
P-AMINOPHENYLSULFONIC ACID
P-ANILINESULFONIC ACID
P-SULFOANILINE
SULFADIAZINE IMPURITY B [EP IMPURITY]
SULFADIMETHOXINE IMPURITY D [EP IMPURITY]
SULFADIMETHOXINE SODIUM FOR VETERINARY USE IMPURITY D [EP IMPURITY]
SULFADIMIDINE IMPURITY F [EP IMPURITY]
SULFAMETHOXAZOLE IMPURITY D [EP IMPURITY]
SULFANILIC ACID [HSDB]
SULFANILIC ACID [MI]
SULFANILIC ACID [USP-RS]
SULPHANILIC ACID

Systematic Nomenclature

1-AMINOBENZENE-4-SULFONIC ACID
4-AMINOBENZENESULFONIC ACID
4-AMINOPHENYLSULFONIC ACID
4-SULFOANILINE
BENZENESULFONIC ACID, 4-AMINO-
MESALAZINE IMPURITY O [EP IMPURITY]
SULFANILIC ACID

Technical Codes

NSC-7170