Perchlorate Level 4 Back Catalog number: 59342 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0027.18-200-T Benzo[c]phenanthrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 195-19-7 Price on request 8843.10-K-IO 2-Butyl-3,5-dimethylpyrazine and 2-butyl-3,5-dimethylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request 11411.18-K-ME Desipramine hydrochloride,1000 µg base/mL,MeOH,1mL, Price on request