cis-Tramadol HCl Back Catalog number: 96504 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52187 Internal Reference Standard Price on request 673281 Fenamiphos, 100 µg/ml, Acetonitrile, 5ml Price on request 51183 Retention Time Marker Solution Iowa OA-2 Price on request