Brilliant Blue G

Overview

Brilliant Blue G is a small molecule active pharmaceutical ingredient (ChEMBL CHEMBL4173394).

Patent & exclusivity (US)

Per the FDA Orange Book (1 approved US product), the latest listed US patent on Brilliant Blue G expires — and exclusivity 20 Dec 2026. Generic API sourcing typically opens up once these lapse.

Chemical identity

IUPAC name

sodium 3-[[4-[[4-(4-ethoxyanilino)phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-3-methylanilino]methyl]benzenesulfonate

Canonical SMILES

CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC(=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3C)C5=CC=C(C=C5)NC6=CC=C(C=C6)OCC)C.[Na+]

InChIKey

RWVGQQGBQSJDQV-UHFFFAOYSA-M