ASPIRIN
UNII R16CO5Y76E

Substance Identification & Data

This profile provides standardized clinical and technical data for Aspirin, uniquely identified by the FDA Unique Ingredient Identifier (UNII) R16CO5Y76E.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 50-78-2 and the RxNorm Concept ID (RxCUI) 1191. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
R16CO5Y76E
CAS Registry Number
50-78-2
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
ASPIRIN
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
R16CO5Y76E
The specific atomic composition represented as a molecular structure string.
InChIKey
C9H8O4
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
BSYNRYMUTXBXSQ-UHFFFAOYSA-N
Line notation for describing the chemical structure and connectivity of atoms.
NCI Thesaurus
National Cancer Institute reference terminology for clinical and research data.
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
CC(=O)Oc1ccccc1C(=O)O

Synonyms and Nomenclature

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

FDA Official Name

ACETYLSALICYLIC ACID

Common Names & Synonyms

ACETYLSALICYLIC ACID (WHO-IP)
ACETYLSALICYLIC ACID [EMA EPAR]
ACETYLSALICYLIC ACID [EP MONOGRAPH]
ACETYLSALICYLIC ACID [GREEN BOOK]
ACETYLSALICYLIC ACID [WHO-DD]
ACETYLSALICYLICUM ACIDUM
ACETYLSALICYLICUM ACIDUM [HPUS]
ACIDUM ACETYLSALICYLICUM
ACIDUM ACETYLSALICYLICUM (WHO-IP)
AGGRENOX COMPONENT ASPIRIN
ASA
ASPIRIN
ASPIRIN [HSDB]
ASPIRIN [JAN]
ASPIRIN [MART.]
ASPIRIN [MI]
ASPIRIN [ORANGE BOOK]
ASPIRIN [USP MONOGRAPH]
ASPIRIN [USP-RS]
ASPIRIN [VANDF]
ASPIRIN-PC COMPONENT ASPIRIN
AXOTAL COMPONENT ASPIRIN
AZDONE COMPONENT ASPIRIN
BENZOIC ACID, 2-(ACETYLOXY)-
CARISOPRODOL COMPOUND COMPONENT ASPIRIN
CODOXY COMPONENT ASPIRIN
DARVON COMPOUND COMPONENT ASPIRIN
EQUAGESIC COMPONENT ASPIRIN
EXCEDRIN COMPONENT ASPIRIN
FIORINAL COMPONENT ASPIRIN
INVAGESIC COMPONENT ASPIRIN
INVAGESIC FORTE COMPONENT ASPIRIN
LANORINAL COMPONENT ASPIRIN
MEPRO-ASPIRIN COMPONENT ASPIRIN
MICRAININ COMPONENT ASPIRIN
NORGESIC COMPONENT ASPIRIN
ORPHENGESIC COMPONENT ASPIRIN
ORPHENGESIC FORTE COMPONENT ASPIRIN
PA-32540 COMPONENT ASPIRIN
PERCODAN COMPONENT ASPIRIN
PERCODAN-DEMI COMPONENT ASPIRIN
PL2200 COMPONENT ASPIRIN
PRAVIGARD PAC COMPONENT ASPIRIN
Q-GESIC COMPONENT ASPIRIN
ROBAXISAL COMPONENT ASPIRIN
ROXIPRIN COMPONENT ASPIRIN
SOMA COMPOUND COMPONENT ASPIRIN
SYNALGOS-DC COMPONENT ASPIRIN
TALWIN COMPOUND COMPONENT ASPIRIN
VICOPRIN COMPONENT ASPIRIN

Brand / Trade Names

CLOPIDOGREL/ACETYLSALICYLIC ACID COMPONENT ASPIRIN
DUOCOVER COMPONENT ASPIRIN
DUOPLAVIN COMPONENT ASPIRIN
DURLAZA
MEASURIN
YOSPRALA COMPONENT ASPIRIN

Systematic Nomenclature

2-(ACETYLOXY)BENZOIC ACID
2-ACETYLOXYBENZOIC ACID
ACETYL SALICYLATE
SALICYLIC ACID ACETATE

Technical Codes

BAY1019036
NSC-27223
NSC-406186

NDC Products Containing ASPIRIN

This unique ingredient identifier is listed as an ingredient or substance in the following products in the NDC directory: