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 73790 1,3-Dioxane Price on request EPA-8280CCAV Calibration Kit; Alternate Volume, 5 x 200ul, nonane Price on request 11391.X-10ML Gasoline, Super 98 octane,neat,neat,10mL, Price on request