Mixed Calibration Standard 1 Back Catalog number: 52053 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended D453145 (2R,3R)rel2,3Dihydroxy-2-methylbutanoic Acid,500mg Price on request HPCB-4009N 4-Hydroxy-2',3,5,5'-tetrachlorobiphenyl, 10mg Price on request 681729 Crotoxyphos, 10.0 µg/ml, Isooctane, 10ml Price on request