Zolpidem tartrate, 100 µg/ml, Methanol, 1ml Back Catalog number: 680434 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended C16175500 Phthalic acid, bis-n-pentyl ester, 250mg Price on request DF-IS-C200 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 54015 Alkalinity as Calcium Carbonate Price on request