Check the listing for details. Phenolphthalein Indicator [1% Solution] Reagent Grade 1 Oz in a Dropper Bottle. Condition: New. Listed at 9.99 USD. PHENOLPHTHALEIN 1%. Volume: 1 Fluid Ounce (30 mL) Strength: 1% Concentration Grade: Reagent Grade Texture: Colorless Liquid CAS Number: 77-09-8 You are buying 1 Fluid Ounce of 1% Phenolphthalein indicator solution. The item ships in a 1 Fluid Ounce Polypropylene bottle with precision dropper tip and separate screw cap. The dropper is calibrated to deliver 650 drops per ounce. Phenolphthalein (C20H14O4) pH INDICATOR pH < 0 pH 0-8.2 pH 8.2-12 pH > 13 Orange Colorless Purple Colorless Phenolphthalein (C20H14O4) has hundreds of uses. SHIPS FAST FROM CALIFORNIA, USA! 2-4 day transit time throughout the country. We ship three times a day; so your item is guaranteed to go out the very same day you place your order. Our bottles are made of sturdy polypropylene. To ensure a spill-free journey, we shrink-wrap the screw tops and seal the bottles in plastic.