THYMINE
UNII QR26YLT7LT

Substance Identification & Data

This profile provides standardized clinical and technical data for Thymine, uniquely identified by the FDA Unique Ingredient Identifier (UNII) QR26YLT7LT.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 65-71-4 and the RxNorm Concept ID (RxCUI) 1368871. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

QR26YLT7LT

CAS Registry Number

65-71-4

RxNorm Concept ID

1368871

Detailed Substance Profile

Preferred Name

THYMINE

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

Molecular Formula

QR26YLT7LT

The specific atomic composition represented as a molecular structure string.

InChIKey

C5H6N2O2

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

RWQNBRDOKXIBIV-UHFFFAOYSA-N

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

NCI Thesaurus

C881

National Cancer Institute reference terminology for clinical and research data.

PubChem CID

1135

Unique identification number in the NCBI database of chemical substances.

Substance Type

chemical

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

Ingredient Role

[nH]1c(c(C)c[nH]c1=O)=O

Synonyms and Nomenclature

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