Dextran, 40,000, Powder, CAS Number 9004-54-0, Molecular Weight Av. M.W. 35,000-50,000, Chemical Container Material Plastic, Chemical Container Type Bottle, Chemical Grade Lab, Chemical Container Size 1 kg, Chemical Family Type Analytical Reagents, Shelf Life 24 mo, Special Information Glucose polymer produced by the action of the bacteria, Less Thani Greater ThanLeuconostoc mesenteroides Less Thanp Greater Than on a sucrose substrate.