1,3-Butadiene Back Catalog number: 95491 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2581.28-200-T Dibenzo[h,rst]pentaphene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 192-47-2 Price on request 0986.28-10-IO d3 C28/C29Monoaromatic sterane (5 alpha(H)/5ß(H)), 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 28013 EPA Method 8260B Purgeable Internal Standard Price on request