HomeP-XYLENOL BLUE INDICATOR ARP-XYLENOL BLUE INDICATOR AR Product CodeB-02853BRANDBio-ChemGradeARCAS No125-31-5Molecular FormulaC23H22O5SMolecular Weight410.49H.S.Code3204.99900Shelf Life60 MonthsPurity99.5 % COAs MSDS Physical Properties Physical state at 20 °CSolidColorBrown powderMelting point/ Freezing point [°C]212 °COdourOdorless Packaging Specification AppearanceBrown powderActive range pH 1.2 – 3.8Red to yellowAlkaline range pH 8.0 – 9.6Yellow to blueSafety Information and Hazard Symbols Symbol: GHS07, GHS08Signal Word: Warning