PCB Mix 25 ppb Back Catalog number: 98626 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2339.10-K-HX 1,3-Dimethyl-5-ethylbenzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 934-74-7 Price on request 8484.15-K-ME Metoprolol (free base), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 51384-51-1 Price on request 11618.24-10MG Spironolactone,neat,neat,10mg, Price on request