Product Name: H-Pen-OH 

CAS No.: 1113-41-3 

Store at: Cool dry place(<4oC) 

Molecular Formula: C5H11NO2S 

Molecular Weight: 149.20 

 Appearance White to off white powder 

Assay ≥98.5% 

Loss on drying ≤2% 

Residue on ignition ≤0.3%