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 19407 TCLP - Base/Neutrals Price on request 10704.22-100MG di C6-8 branched C7 rich phthalate Price on request C13342000 2-Ethylhexyl 4-methoxycinnamate, certified, 0.1g Price on request