Levonorgestrel, 100µg/mL in Acetonitrile, 1ml Back Catalog number: A14629760AL-100 Availability: In the manufacturer's stock Price on request - + Recommended 59268 PTS Spike - Metals Mix #2 Price on request 10208.11-K-ME Isobutyl 4-hydroxybenzoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 4247-02-3 Price on request 1536.18-100-T m-Terphenyl-d14, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 17714-84-0 Price on request