Use P# 72115 Back Catalog number: 71998 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8484.15-K-ME Metoprolol (free base), 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 51384-51-1 Price on request 72351 2-Chloropropane Price on request 1026.18-500-IO 9-n-Butylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 10394-57-7 Price on request