P-Aminobenzoic Acid(PABA)

Appearance:White to off white crystalline powderMolecular Weight:137.14Density:1.374Boiling Point:339.9 °C at 760 mmHgMelting Point:186-189℃Flash Point:159.4 °CStorage Temperature:2-8°CRefractive index:1.5795Solubility:H2O:4.7 g/L (20 oC)Stability:Stable. Incompatible with strong oxidizing agents. Combustible. Sensitive to light and air. May discolour on exposure to light.Usage:

Widely distributed in nature as a B complex factor. Baker’s yeast contains 5 to 6 ppm, brewer’s yeast from 10 to 100 ppm. Occurs free and in ester form.