Calibration Standard Mix 4 Back Catalog number: 52046 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10434.15-K-ME Carbamazepine-10,11-epoxide-d10 Price on request 93819 4,4'-Dibromooctafluorobiphenyl Price on request 679283 Metoprolol acid, 25mg Price on request