Internal Reference Standard Back Catalog number: 52187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675478 Acequinocyl-hydroxy, 100 µg/ml, Acetonitrile, 1m Price on request 677600 Pyridoxal hydrochloride, 100mg Price on request 10041.19 6-Acetylmorphine (free base), , Solvent-, Unit , # of units-, Cas.no. Price on request