EPA Method 500 Series Internal Standard #5 Back Catalog number: 30004 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 3623.20-K-ME 17alpha-Ethynylestradiol,1000 µg/mL,MeOH,1mL, Price on request 15900-1764-10AN5 Dimethenamid-OA, 10µg/ml in Acetonitrile, 5ml Price on request 8228.10-100 Tri-allate, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2303-17-5 Price on request