EPA Method 601 Internal Standard Back Catalog number: 19094 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680925 Antipyrine, 10.0 µg/ml, Acetonitrile, 10ml Price on request 2091.13-K-5IP 2,4,6-Tribromophenol-PFB, 1000µg/mL, Solvent-isopropanol, Unit 5mL, # of units-1, Cas.no. Price on request 18000-0495-100AN5 Gabapentin, 100µg/ml in Acetonitrile, 5ml Price on request