Mol.Formula: C5H5NO2S

Index of Refraction: 1.676

Molar Refractivity: 36.1±0.4 cm3

Average mass: 143.164 Da

Monoisotopic mass: 143.004105 Da

Molar Volume: 95.9±5.0 cm3

Density: 1.5±0.1 g/cm3

Surf.Tension: 67.7±5.0dyne/cm