5-HYDROXY-3-METHYLINDOLE
UNII 21QUG33SLM

Substance Identification & Data

This profile provides standardized clinical and technical data for 5-hydroxy-3-methylindole, uniquely identified by the FDA Unique Ingredient Identifier (UNII) 21QUG33SLM.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 1125-40-2 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

21QUG33SLM

CAS Registry Number

1125-40-2

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

5-HYDROXY-3-METHYLINDOLE

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

InChIKey

C9H9NO

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

NPHFOFOYWYLBTF-UHFFFAOYSA-N

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

PubChem CID

192734

Unique identification number in the NCBI database of chemical substances.

Substance Type

5-HYDROXY-3-METHYLINDOLE

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

Ingredient Role

[nH]1cc(c2cc(ccc12)O)C

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for 5-hydroxy-3-methylindole. 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.