EPA Method 515.2Methyl Derivatives Back Catalog number: 30074 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91976 Dimethyl endothall Price on request 10032.6-10MG Isonicotinaldehyde, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 872-5-5 Price on request 680186 2,4,6-Trinitrotoluene, 100 µg/ml, Acetonitrile, Price on request