Multi-Element Calibration Standard-2A Back Catalog number: 50012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11651.8-K-ME Dopamine,1000 µg/mL,MeOH with 5% 1 M HCl,1mL, Price on request 95809 Pyridine as N Price on request 71840 1,1,2-Trichloropropane Price on request