Calibration Standard Mix 4 Back Catalog number: 53013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 57113 Aluminum (Al) Price on request 673026 Amoxicillin trihydrate, 250mg Price on request 674815 Prothoate, 10 µg/ml, Ethyl acetate, 10ml Price on request