Spike Solution #1 Back Catalog number: 59045 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673427 Prosulfocarb, 100 µg/ml, Acetonitrile, 5ml Price on request 11171.17-K-ME Dextrorphan tartrate,1000 µg base/mL,MeOH,1mL Price on request 2545.14-100-ME (±)-Atenolol,100 µg/mL,MeOH,1mL, Price on request