EPA Method 524 & 624 - Internal Standard Back Catalog number: 19494 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3290.21-K-IO Methyl 5-cis-eicosenoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 20839-34-3 Price on request 676868 Isoconazole Nitrate, 10mg Price on request X9104 Endrin aldehyde Price on request