EPA Method 509 Internal Standard Back Catalog number: 30097 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3684.18-K-IO 3-n-Tetradecylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 110851-66-6 Price on request 681684 2-Chlorophenol, 100 µg/ml, Methanol, 5ml Price on request 72293 Methyl nonanoate Price on request