Calibration Standard Mix 3 Back Catalog number: 52045 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676039 D5-Propachlor OA, 100 µg/ml, Acetonitrile, 1ml Price on request 70016R Aroclor 1221 Price on request 681247 Methylparaben, 100 µg/ml, Acetonitrile, 5ml Price on request