EPA 525 Cal Mix 1 Back Catalog number: 94192 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 74031 Benzovindiflupyr, 1000µg/ml in Acetonitrile, 1ml Price on request MBHCH b-1,2,3,4,5,6-Hexachloro(13C6)cyclohexane, 1.2mL x 100ug/mL, nonane Price on request 9245.8-100-ME Acetaminophen-d4 (Paracetamol-d4),100 µg/mL,MeOH,1mL Price on request