EPA Method 610/8310 Analytes Back Catalog number: 92231 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70464 Ethyl acetate, 1000µg/ml in MeOH, 1ml Price on request 681707 Methotrexate hydrate, 100mg Price on request 92371 2,4-Dinitrophenol Price on request