13C6-Mefenamic acid, 10mg Back Catalog number: 679665 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 51043 TX 1005 Surrogate Standard Price on request 673274 Ethiofencarb-sulfoxide, 10.0 µg/ml, Acetonitrile, Price on request 96175 Caffeine Price on request