EPA Method 525 - Internal Standard Back Catalog number: 30031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91128 2,4-Dinitrophenol Price on request 70175 Ethoprop, 1000µg/ml in MeOH, 1ml Price on request 0990.13-K-IO 4-Methyl-1-hexylcyclohexane (cis + trans), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 92031-89-5 Price on request