13C3-Caffeine, 10mg Back Catalog number: 680424 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 37031 EPA Method 525.2 - IS/SS Mix Price on request 53009 Mercury (Hg) Price on request 79371 2,3,4,6-Tetrachloroanisole Price on request