METHYLENE BLUE
UNII T42P99266K

Substance Identification & Data

This profile provides standardized clinical and technical data for Methylene Blue, uniquely identified by the FDA Unique Ingredient Identifier (UNII) T42P99266K.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 7220-79-3 and the RxNorm Concept ID (RxCUI) 6878. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code
T42P99266K
CAS Registry Number
7220-79-3
RxNorm Concept ID

Detailed Substance Profile

Preferred Name
METHYLENE BLUE
Official standardized name for this substance within the FDA UNII nomenclature system.
Molecular Formula
T42P99266K
The specific atomic composition represented as a molecular structure string.
InChIKey
C16H18N3S.Cl.3H2O
International Chemical Identifier digital signature for unique molecular identification.
SMILES String
XQAXGZLFSSPBMK-UHFFFAOYSA-M
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
[s+]1c2cc(N(C)C)ccc2nc3c1cc(N(C)C)cc3.[Cl-].O.O.O

Synonyms and Nomenclature

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

BASIC BLUE 9 TRIHYDRATE
C.I. BASIC BLUE 9 TRIHYDRATE
METHYLENE BLUE
METHYLENE BLUE [HPUS]
METHYLENE BLUE [IARC]
METHYLENE BLUE [II]
METHYLENE BLUE [ORANGE BOOK]
METHYLENE BLUE [USP MONOGRAPH]
METHYLENE BLUE [USP-RS]
METHYLENE BLUE [VANDF]
METHYLENE BLUE TRIHYDRATE
METHYLENE BLUE TRIHYDRATE [MI]
METHYLTHIONINII CHLORIDUM TRIHYDRATE [WHO-IP LATIN]
METHYLTHIONINIUM CHLORIDE TRIHYDRATE [WHO-IP]

Brand / Trade Names

PROVAYBLUE

Systematic Nomenclature

METHYLTHIONINIUM CHLORIDE TRIHYDRATE
PHENOTHIAZIN-5-IUM, 3,7-BIS(DIMETHYLAMINO)-, CHLORIDE, TRIHYDRATE
TETRAMETHYLTHIONINE CHLORIDE TRIHYDRATE

Technical Codes

NSC-759135

NDC Products Containing METHYLENE BLUE

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