Methadone/Methaqualone/Propoxyphene Back Catalog number: 96626 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673775 Cyflufenamid, 100 µg/ml, Ethyl acetate, 5ml Price on request 52118 EPA Method 300.0 Anions Mix A, 1000 µg/mL in Water, 1ml Price on request 11322.10-K-AN Phenacetin,1000 µg/mL,acetonitrile,1mL, Price on request