EPA Method 525 Standard Back Catalog number: 94574 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673249 Demeton-S-methyl-sulfone, 100 µg/ml, Acetonitrile Price on request 674874 Difloxacin hydrochloride, 100mg Price on request 1373.7-5ML 1-Heptanol, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 111-70-6 Price on request