PA-PEG-PA: Propionic Acid PEG Propionic Acid, MW 338.3, MW 674.8 ITEM CODE | ITEM NUMBER | ITEM DESCRIPTION | PRICE (RMB) | A12021-500MG | PA-PEG4-PA,500mg | Propionic Acid PEG4 Propionic Acid, MW 338.3 | 电询 | A12021-1 | PA-PEG4-PA,1g | Propionic Acid PEG4 Propionic Acid, MW 338.3 | 电询 | A12018-500MG | PA-PEG12-PA,500mg | Propionic Acid PEG12 Propionic Acid, MW 674.8 | 电询 | A12018-1 | PA-PEG12-PA,1g | Propionic Acid PEG12 Propionic Acid, MW 674.8 | 电询 | |