Paraformaldehyde Powder, CAS No. : 30525-89-4

Paraformaldehyde is used as a disinfectant, hardening agent and waterproofing agent. It is also used to prepare adhesives, resins and in dentistry as an antiseptic. It is also employed as a thermoplastic. Paraformaldehyde is not a fixative; it must be depolymerized to formaldehyde in solution. In cell culture, a typical formaldehyde fixing procedure would involve using a 4% formaldehyde solution in  (PBS) on ice for 10 minutes. In histology and pathology specimens preparation, usually, the fixation step is performed using 10% Neutral Buffered Formalin (4% formaldehyde) for, at least, 24 hours.