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 675710 Difenoconazole-alcohol, 10mg Price on request 58221 Scandium (Sc) Price on request C14950000 Metazachlor, certified, 0.1g Price on request