Metals Mix #2 Back Catalog number: 50048 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended SC-492213 4'-Aminoazobenzene-4-sulphonic acid, 1g Price on request 682120 Desacetyl cephapirin sodium salt, 10mg Price on request 72288 D-Xylose Price on request