UNII 7QV8F8BYNJ
WATER O-18

Unique Ingredient Identifier: 7QV8F8BYNJ

The Unique Ingredient Identifier (UNII) is a unique alphanumeric code assigned to a specific substance or ingredient by the FDA (Food and Drug Administration). UNII codes are non-proprietary, free, unique, unambiguous and nonsemantic. Each UNII code consists of 10 characters with both letters and numbers. The first two characters represent the source of the substance while the remaining eight characters represent the specific substance. UNII codes are primarily used to identify and track substances in several drug databases and regulatory documents related to drugs, biologics, and medical devices.

Preferred Substance Name: WATER O-18

The Preferred Substance Name (PSN) is the official or preferred name of a substance or ingredient. The preferred name provides a standardized and consistent name for each substance is used in the UNII code system. The preferred name may differ from other names also commonly used to refer the same substance. The PSN is usually the name used by regulatory agencies like the FDA.

SMILES: H2O

The Simplified Molecular Input Line Entry System or SMILES is a format used to represent and describe the molecular structure of a substance or ingredient. SMILES uses a series of alphanumeric characters to represent the atoms and bonds in a molecule in conjunction with other symbols and operators to indicate the arrangement and connectivity of the atoms.

Registry Number: 14314-42-2

The Registry Number is the unique numerical identifiers assigned to a substance or ingredient by the Chemical Abstracts Service (CAS). The CAS registry number is a used and recognized standard identifier by many industries and regulatory agencies. The Registry Number facilitates cross-referencing substances between different databases that may use different naming conventions or identifiers.

UNII to RxNorm Crosswalk: 1551628 (RXCUI)

The RxNorm Ingredient Concept Code is the numeric code assigned to a specific substance or ingredient by the National Library of Medicine's RxNorm system. By including the RxNorm code in the UNII code system it is possible to crossover UNII codes to RxNom.

PubChem Compound ID: 105142

The PubChem Compound ID is a unique identifier for a specific substance or ingredient in the PubChem database which is the largest collection of freely accessible chemical information by the National Center for Biotechnology Information. The PubChem database is a resource for drug discovery, development, chemical research, and other applications.

Ingredient Type: XLYOFNOQVPJJNP-NJFSPNSNSA-N

Substance Type: INGREDIENT SUBSTANCE

The International Organization for Standardization - ISO 11238 substance type is used as a data element in the UNII code system to provide additional information about the type of substance being identified.

The following synonyms and mappings provide alternative ways to refer to the same substance or ingredient. Synonyms may include different names or spellings, alternate chemical names, trade names, or other common names.

• HEAVY WATER (H218O) - Common Name
• WATER (H218O) - Common Name
• WATER O-18 - Common Name
• WATER, HEAVY (H218O) - Common Name
• WATER, LABELED WITH OXYGEN-18 - Common Name
• WATER, O-18 - Common Name
• WATER-18O - Systematic Name (chemical and taxonomic names)

Common Chemistry

CAS Common Chemistry is an open community resource of the American Chemical Society for accessing chemical information. The chemical information in the CAS database is curated by expert scientists and includes information of common and frequently regulated chemicals and information applicable to high school and undergraduate chemistry classes.

Inxight Drugs

The National Center for Advancing Translational Sciences (NCATS) Inxight Drugs database has a comprehensive drug development information. The NCATS Inxight Drugs includes manually curated data provided by private companies and FDA. The database has marketing and regulatory status information, rigorous drug ingredient definitions, biological activity, clinical use, etc.

DailyMed Regulated Products

The National Library of Medicine DailyMed is a searchable database that includes the most recent product labeling information submitted to the FDA by private companies.

NCATS GSRS Full Record

The Global Substance Registration System (GSRS) was designed to facilitate global monitoring of human and animal medicinal, food, tobacco, and cosmetic products. GSRS includes unique substance identifiers consistent with the ISO 11238 standard.

PubChem

The PubChem database by the National Library of Medicine includes the chemical structures of small organic molecules and information on their biological activities.

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