Internal Standard for AB SIM Back Catalog number: 94516 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677759 DL-alpha-Tocopherol, 1000 µg/ml, Methanol, 1ml Price on request 8468.6-K-IO Quinone, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 106-51-5 Price on request 70945 Propyl ether Price on request