Aflatoxin & Ochratoxin Calibration Standard Back Catalog number: 98449 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681813 D4-Ethylene thiourea, 10mg Price on request 679249 Isoxaben, 100mg Price on request 673734 Atrazine, 10.0 µg/ml, Ethyl acetate, 10ml Price on request