Custom Standard Back Catalog number: 50308 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2016.12-100-IO 2,3,3',4,4',5,5'-Heptachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 39635-31-9 Price on request 674890 Norfloxacin, 100mg Price on request 676770 Isonoruron, 100 µg/ml, Acetonitrile, 1ml Price on request