Dow FR-250, 35 µg/mL in Isooctane, 1ml Back Catalog number: B-250S-0.35X Availability: In the manufacturer's stock Price on request - + Recommended 70921 3,3’-Dimethoxybenzidine Price on request 0307.23-200-T 6-Methylanthanthrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 31927-64-7 Price on request 70224 Napropamide, 1000µg/ml in MeOH, 1ml Price on request