BTEX Mix Back Catalog number: 20001AR Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8483.19-250MG Metoprolol tartrate, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 56392-17-7 Price on request 79616 Perylene Price on request 1745.13-K-T Benzo[c]quinoline, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 229-87-8 Price on request