EPA Method 551.1 Internal Standard Back Catalog number: 32103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70774 Oxamyl oxime Price on request 1282.34-10MG Betulin diacetate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1721-69-3 Price on request 675201 Zoxamide, 100mg Price on request