polo188Variability in poloxamer 188 (P188) raw material, which is routinely used in cell culture media to protect cells from hydrodynamic forces, plays an important role in the process performance.Poloxamer 188 10%, sterile-filtered, BioReagent, suitable for insect cell culture; CAS Number: 9003-11-6; Synonyms: Poloxamer 188 at Sma-Aldrich