EPA Method 1666Labeled Standard Back Catalog number: 82491 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended V152700 Des-[(S)-3-Methyl-2-pentanamidobutanoic Acid] Vals Price on request 1024.18-100-TX10 Chrysene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1719-03-5 Price on request 678213 Benzobicyclon, 100 µg/ml, Acetonitrile, 1ml Price on request