EPA Method 524.2 - Revision 4.0 Back Catalog number: 33001 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 678176 Phorate-oxon-sulfone, 100 µg/ml, Cyclohexane, 1m Price on request 677515 1-(2,4,5-Trihydroxyphenyl)butan-1-one, 50mg Price on request 676885 Halofuginone lactate, 100 µg/ml, Acetonitrile, 1 Price on request