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LC4708 Phthalein purple
metal indicator Reag. Ph Eur


Order number Packaging Quantity Price €
AC31708 Glass bottle 1 g 29.7
AC31708 Glass bottle 10 g 189.9


Product information
Grade Reag. Ph Eur
Synonyms Xylenolphthalein-bis(iminodiacetic acid), Metal phthaleine, Cresol phthalexone
Hill Formula C32H32N2O12
HS Code 2932 29 85
EC number 219-318-8
Molar mass 636.62 g/mol
CAS number 2411-89-4


Chemical and physical data
Solubility (20 °C) insoluble
Melting point 186 °C
Molar mass 636.62 g/mol
Bulk density 50 kg/m3


Safety information
Storage class 10 – 13 Other liquids and solids
WGK WGK 3 highly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C



Identity (UV/VIS-Spectrum) passes test
Absorption maximum (Sodium hydroxide solution 0.1 mol/l) 577 – 580 nm
Spec. Absorptivity A 1%/1cm (λ7m7ax; 0.005 g/l; Sodium hydroxide solution 0.1 mol/l calc. on anhydrous substance) ≥ 750
Water (according to Karl Fischer) ≤ 10 %
Suitability as indicator (for metal titration) passes test