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 64681 Malathion, 100µg/ml in MeOH, 1ml Price on request 30130 EPA Method 502/524 Phase V Additionals Price on request 83562 2,4-D Price on request