Molecular weight: 220
Molecular formula: C₇H₁₂N₂O₄S
Appearance: White With Slight-Red Crystal Powder
Purity(HPLC Area-Percent): 99.5% Min.
Ash: 0.2% Max.
Loss On Drying: 0.2% Max.
Fe Content: 20ppm Max.
Heavy Metal(Pb): 10ppm Max.
O-Toluidine: 10/25/50ppm Max.