EPA Method 500 Series Internal Standard Back Catalog number: 31004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72239 n-Hexane-d14 Price on request 10081.13-50-T Dechlorane 604 Component A, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 34571-16-9 Price on request 0606.28-100-IO (24S)-24-Methylcholest-8(14)-ene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6673-69-4 Price on request