EPA Method 551.1 Internal Standard Back Catalog number: 32103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended E589402-2.5MG trans-trans-10,11-Epoxy Farnesenic Acid-d3Methyl Ester, 2,5mg Price on request 673113 Thiamine mononitrate, 250mg Price on request 0356.9-K-IO 5-Methylbenzothiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 14315-14-1 Price on request