Calibration Standard Mix 2 Back Catalog number: 53034 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4543-20-DCX10 Naphthalene Mix, 20µg/mL in dichlorometh., 10 x1ml Price on request 681830 4-Epioxytetracycline, 10mg Price on request 679542 Cephapirin, 10mg Price on request