MERCURIC OXIDE
UNII IY191986AO

Substance Identification & Data

This profile provides standardized clinical and technical data for Mercuric Oxide, uniquely identified by the FDA Unique Ingredient Identifier (UNII) IY191986AO.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 21908-53-2 and the RxNorm Concept ID (RxCUI) 221122. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
IY191986AO
CAS Registry Number
21908-53-2
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
MERCURIC OXIDE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
IY191986AO
The specific atomic composition represented as a molecular structure string.
InChIKey
Hg.O
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
QYZBCWXZSYTIOY-UHFFFAOYSA-N
Line notation for describing the chemical structure and connectivity of atoms.
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
[O-2].[Hg+2]

Synonyms and Nomenclature

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

Common Names & Synonyms

HONGFEN
HYDRARGYRI OXYDUM RUBRUM
HYDRARGYRI OXYDUM RUBRUM [CHP]
MERCURIC OXIDE
MERCURIC OXIDE (PURIFIED)
MERCURIC OXIDE [HSDB]
MERCURIC OXIDE [ISO]
MERCURIC OXIDE [VANDF]
MERCURIC OXIDE RED
MERCURIC OXIDE, RED
MERCURIC OXIDE, RED (WHO-DD)
MERCURIC OXIDE, RED [MI]
MERCURIC OXIDE, RED [WHO-DD]
MERCURIC OXIDE, YELLOW
MERCURIC OXIDE, YELLOW (WHO-DD)
MERCURIC OXIDE, YELLOW [MI]
MERCURIC OXIDE, YELLOW [WHO-DD]
MERCURIC OXIDE,YELLOW
MERCURIC OXIDE,YELLOW [VANDF]
MERCURIUS PRAECIPITATUS RUBER
MERCURIUS PRAECIPITATUS RUBER [HPUS]
MERCURY OXIDE (HGO)
RED MERCURIC OXIDE
YELLOW MERCURIC OXIDE

Systematic Nomenclature

MERCURY(II) OXIDE

NDC Products Containing MERCURIC OXIDE

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