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 677465 Fexofenadine hydrochloride, 10mg Price on request 3484.6-100-CY Picloram Price on request 675245 Picloram, 100 µg/ml, Acetonitrile, 5ml Price on request