EPA Method 609 - Analytes Back Catalog number: 40014 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended ND33891 Ciprofloxacin-piperazinyl-N-sulfate-d8, 1mg Price on request 83543 n-Butyraldehyde-DNPH Price on request 682133 Chlorthal-dimethyl, 100 µg/ml, Ethyl acetate, 5m Price on request