Cephalosporins Back Catalog number: 67041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1667.11-100-IO 1,2-Dichloroundecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 81246-86-8 Price on request 97815 Phenols Standard #2 Price on request 1348.20-10MG Benzo[b]fluoranthene-d12, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 93951-98-5 Price on request