Theophylline Back Catalog number: 72031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10105.10-50UG 8:2Mono-PAPS-d2, neat, Solvent-neat, Unit ca. 50 µg, # of units-1, Cas.no. Price on request 59077 Fluoride (F-) Price on request 2074.6-K-IP 2,3,5,6-Tetrachlorophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 935-95-5 Price on request