1,1-Difluoroethane, 20mg/mL in MeOH, 1ml Back Catalog number: 34411 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53087 QC Standard 4 Price on request 2656.12-100-IO 3-Fluoro-2,2',5-trichlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 676328 Metoprolol tartrate, 250mg Price on request