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 71137 Dibromodifluoromethane Price on request 98263 VOC Standard Price on request 79513 Enflurane Price on request