Fluorescent Brightener Agent OB-2 [4,4''-Bis(5-methyl-2-benzoxazolyl)stilbene], 97%, 5g Back Catalog number: Q147 Availability: In the manufacturer's stock Price on request - + Recommended 63196 2,2',3,3',4,4',5,6'-Octachlorobiphenyl (196) Price on request H268700 Heptadecafluorooctanesulfonic Acid Potassium Salt, 500mg Price on request 79091 Pyridine Price on request