EPA Method 601 Internal Standard Back Catalog number: 19094 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96160 Nitrosamines Standard Price on request 677939 Chlorpyrifos-methyl, 250mg Price on request BA057-10 Zilpaterol-13C3 hydrochloride, 10mg 562,61 €