13C3-Caffeine, 100 µg/ml, Methanol, 1ml Back Catalog number: 681491 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 677299 Tepraloxydim, 100mg Price on request 3329.12-100-AN Carbaryl, 100μg/mL in Acetonitrile, 1ml Price on request CBP-236 2,3,6-Trichlorobiphenylene, 1.2ml x 50ug/ml, nonane Price on request