Parathion ethyl, 1000µg/ml in MeOH, 1ml Back Catalog number: 70383 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 8231.14-50-IO 2-Chloroanthracene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 17135-78-3 Price on request 3128.3-K-IO Trianoic acid (Propionic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 79-09-4 Price on request 0276.24-200-T Naphtho[1,2-b]fluoranthene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 111189-32-3 Price on request