Trace Metals 1 Back Catalog number: 52092 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71994 Bis(4-hydroxyphenyl)methane Price on request M265135 5-Methyl Chrysene, 5mg Price on request 675092 Sodium p-n-decylbenzenesulfonate, 10mg Price on request