EPA Method 611 - Analytes Back Catalog number: 19107 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681809 Valifenalate, 100 µg/ml, Acetonitrile, 1ml Price on request 72507 1,5-Pentamethylenetetrazole Price on request 10864.10-5MG Serotonin-13C2, 15N Price on request