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 95153 Volatile Mix #3 Price on request 8669.9-100MG Imidacloprid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 105827-78-9 Price on request 3461.4-100-CY Naled Price on request