Sigma-Aldrich
聚四氟乙烯, Polytetrafluoroethylene
Polyvinylfluoride
Polyvinylidenechloride
POPSO
Porous glass beads II (pore volume and width)
POTASSIUM 1-[4-(ACETYLAMINO)BENZOYL]-4,5,6,7-TETRAHYDRO-1H-BENZIMIDAZOL-2-YLSULFIDE