1. A dye used as an acid-base indicator
   - bromophenol blue, bromphenol blue

Type of: acid-base indicator, dye, dyestuff

• suborder Oscines
• suborder Osteostraci
• suborder Otides
• suborder Pachycephalosaurus
• suborder Passeres
• suborder Percoidea
• suborder Petromyzoniformes
• suborder Pinnipedia
• suborder Plesiosauria
• suborder Prosauropoda
• suborder Prosimii
• suborder Reptantia
• suborder Ruminantia
• suborder Sauria
• suborder Sauropoda
• suborder Sauropodomorpha
• suborder Sciuromorpha
• suborder Scombroidea
• suborder Scorpaenoidea
• suborder Serpentes
• suborder Strepsirhini
• suborder Tarsioidea
• suborder Theropoda
• suborder Thyreophora
• suborder Tyranni