GLC Reference standard 674, 100mg Back Catalog number: GLC-674 Availability: In the manufacturer's stock Price on request - + Recommended 676646 2-Hydroxyibuprofen, 10mg Price on request 2518.7-100-ME Theophylline, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-55-9 Price on request 41016 Dibenzo(a,h)anthracene, 100µg/ml in Acetonitrile, 1ml Price on request