1-NAPHTHOLPHTHALEIN excellent quality manufacturer, exporter and supplier. 1-Naphtholphthalein (C28H18O4) is a pH indicator with a visual transition from colorless/reddish to greenish blue at pH 7.3 – 8.7.
Technical Bulletin
Product Label
1-NAPHTHOLPHTHALEIN
pH Indicator pH 7.3 colorless to reddish; 8.7 greenish to blue
