3-PYRAZOLECARBOXYLIC ACID
UNII 4RC4WS4FSA

Substance Identification & Data

This profile provides standardized clinical and technical data for 3-pyrazolecarboxylic Acid, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 4RC4WS4FSA.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 1621-91-6 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

4RC4WS4FSA

CAS Registry Number

1621-91-6

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

3-PYRAZOLECARBOXYLIC ACID

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

InChIKey

C4H4N2O2

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

KOPFEFZSAMLEHK-UHFFFAOYSA-N

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

PubChem CID

574310

Unique identification number in the NCBI database of chemical substances.

Substance Type

chemical

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

Ingredient Role

c1c(C(O)=O)[nH]nc1

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for 3-pyrazolecarboxylic 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.