PCB Mix 2.5 ppb Back Catalog number: 95259 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96043 Triazine Mix Price on request 9407.15-K-ME Metoprolol-d7 hydrochloride (isopropyl-d7),1000 µg base/mL,MeOH,1mL Price on request 2518.7-500MG Theophylline, neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 58-55-9 Price on request