Mono-n-butyl phthalate (ring-1,2-13C2, dicarboxyl-13C2, 99%) 100 µg/mL in MTBE, 1,2ml Back Catalog number: CLM-4590-MT-1.2 Availability: In the manufacturer's stock Price on request - + Recommended 32521 m-Xylene Price on request 2772.6-100-AN Atrazine-desethyl, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 6190-65-4 Price on request 2766.11-100-IO 7-Methyl-2-naphthol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 26593-50-0 Price on request