Index of Refraction: 1.643

Molar Refractivity: 36.1±0.4 cm3

Average mass: 144.148 Da

Molecular Formula: C5H4O3S

Density: 1.5±0.1 g/cm3

Surface Tension:67.7±5.0dyne/cm

Molar Volume: 95.9±5.0 cm3