PAH Standard (50 ppm) Back Catalog number: 98654 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C335052 Chlorhexidine-d8 Dihydrochloride, 1mg Price on request 93862 L-(+)-Arabinose Price on request 679076 Methoprene, 100 µg/ml, Acetonitrile, 1ml Price on request