EPA Method 601 Internal Standard Back Catalog number: 19094 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677876 4-tert-Octylphenol, 100 µg/ml, Acetone, 1ml Price on request 71958 2-Nitrofluorene Price on request 10792.3-K-ME 2-Chloro-1,3-propanediol-d5,1000 µg/mL,MeOH,1mL, Price on request