WS Amp 1 Trace Elements Back Catalog number: 52127 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678404 Etoxazole, 100 µg/ml, Acetonitrile, 5ml Price on request 679899 2-Nitrophenol, 100 µg/ml, Acetonitrile, 1ml Price on request 2377.10-K-IP 2-Naphthol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 135-19-3 Price on request