EPA Method 551.1 Internal Standard Back Catalog number: 32103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3679.9-K-IO Quinoline, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 91-22-5 Price on request 71890 3,4-Dichloro-1-butene Price on request 3357.14-K-ME 2,4'-DDD (=TDE) Price on request