bromophenol blue

noun

bro·mo·phe·nol blue | \ ˌbrō-mō-ˌfē-ˌnōl-

, -ˌnȯl-

, -fi-\

variants: also bromphenol blue \ (ˌ)brōm-

Medical Definition of bromophenol blue

: a dye C₁₉H₁₀Br₄O₅S obtained as pinkish crystals and used as an acid-base indicator