Mono-ethyl phthalate (ring-1,2-13C2,99%, dicarboxyl-13C2,99%) 100 µg/mL in MTBE Back Catalog number: CLM-4586-MT-1.2 Availability: In the manufacturer's stock Price on request - + Recommended 92699 Pesticide Standard Price on request 2517.8-K-ME Caffeine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-08-2 Price on request 682069 o-Toluidine, 100 µg/ml, Methanol, 5ml Price on request