EPA Method 500 Series Internal Standard Back Catalog number: 31004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674954 Methoxychlor, 100mg Price on request 679034 Cyazofamid, 10 µg/ml, Cyclohexane, 10ml Price on request 1296.17-200-T 8-Methylbenzo[b]naphtho[2,3-d]thiophene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 24964-07-6 Price on request