Sulfo Orange (Tropaolin O) 1% w/v Aqueous Indicator, 1 L

Sulfo Orange (Tropaeolin O) 1% w/v Aqueous Indicator by Exaxol, catalog number S66391-1, is a 1% w/v aqueous solution of sulfo orange (Tropaeolin O), a high-pH acid–base indicator. Available in 1 L from MBP, a registered vendor to many research institutes across the USA.