Diphenhydramine hydrochloride, 100mg Back Catalog number: 680654 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended EC-4976-2 Method 1668A/B Calibration Solution [CS2], 5ng/ml in Nonane, 0,2ml Price on request 98655 PAH Standard (200 ppm) Price on request 72723 2-Ethylbutyraldehyde Price on request