L-Tyrosine Back Catalog number: 72282 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8539.18-K-IO n-Pentyl iso-pentyl phthalate (n-Pentyl 3-methlybutyl phthalate), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 776297-69-9 Price on request 11007 Semi-Volatiles - PAH Standard Price on request 59528 QC Check Sample Price on request