Custom Mix Back Catalog number: 50405 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2125.12-100-IO Arochlor 1221 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 11104-28-2 Price on request YA10330100AL Atrazine D5 (ethylamino D5), 1000 µg/mL in Acetonitrile, 1ml Price on request 685352 D5-threo-Chloramphenicol, 100µg/ml, Acetonitrile, 1ml Price on request