Caffeine-13C3, 5mg Back Catalog number: C080101 Manufacturer: TORONTO RESEARCH CHEMICALS Availability: In the manufacturer's stock Price on request - + Recommended 19130 EPA Method 507 - Performance Check Solution Price on request 682993 Dicamba-desmethyl, 50mg Price on request 95410 Aroclors 1016/1260 & Tetrachloro-m-xylene Price on request