GC/MS Calibration Standard Mix #2 Back Catalog number: 43028 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1577.23-10MG Pholcodine, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 509-67-1 Price on request 681069 Ibuprofen, 100 µg/ml, Methanol, 1ml Price on request 3993.9-K-CY cis-1,2,trans-1,4-1,2,4-Trimethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 7667-58-5 Price on request