Color Back Catalog number: 50819 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2462.6-K-IP 2,5-Dinitrophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 329-71-5 Price on request 3359.28-50-IO C28 Triaromatic ster-14(15)-ene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 97530 8260 Screening Standard Price on request