Internal standard 2, 2000g/ml in MeOH, 1ml Back Catalog number: 30068 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 676526 2,4-Dinitrophenol, 250mg Price on request 675491 Mix 31, 10 µg/ml, Methanol, 10ml Price on request 91704 EPA Method 502.2 Surrogate Standard Price on request