China Sell Phenolphthalein 99% CAS 77-09-8 for Car Cleaning & pH Indicator

China Sell Phenolphthalein 99% CAS 77-09-8 for Car Cleaning & pH Indicator. Pink Foam Indicator: Ideal for alkaline car wash shampoo, turning pink to deep-red above pH 9. No Residue Formula: Color fades completely after rinsing with no staining on paint or rubber. Excellent Solubility: Dissolves easily in ethanol and alkaline solutions without clogging spray guns. Long Shelf Life: Stable quality with a 2-year shelf life suitable for mass production. Versatile Applications: Used for car wash foam, water treatment, textile, and laboratory indicators. Factory Direct Supply: Manufacturer direct pricing with competitive costs and high quality assurance. Flexible Customization: OEM and ODM services available with flexible customization options.