D3-(±)-Naproxen, 100 µg/ml, Methanol, 1ml Back Catalog number: 677719 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 681254 D4-1H-Benzotriazole, 10mg Price on request 19066 CLP - Purgeable Organic Matrix Spiking Solution Price on request MET-12848C-100MG 3-Phenoxybenzoic acid, 100mg Price on request