Methylene Blue

Overview

Methylene Blue is a small molecule active pharmaceutical ingredient (ChEMBL CHEMBL550495).

API suppliers (1)

Suppliers of Methylene Blue backed by a verifiable FDA Type II Drug Master File. Source: FDA quarterly DMF list.

• PROVEPHARM SAS1 active DMF

Patent & exclusivity (US)

Per the FDA Orange Book (12 approved US products), the latest listed US patent on Methylene Blue expires — and exclusivity 8 Jan 2027. Generic API sourcing typically opens up once these lapse.

Chemical identity

IUPAC name

[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;trihydrate

Canonical SMILES

CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.O.O.O.[Cl-]

InChIKey

XQAXGZLFSSPBMK-UHFFFAOYSA-M