EPA Method 515.1Methyl Derivatives Back Catalog number: 30044 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73576 DL-Lactic acid Price on request 0144.18-500-IO 4-Phenyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 104601-39-0 Price on request L17451000AL Thiacloprid, 10μg/ml in Acetonitrile, 10ml Price on request