N-Desmethyl-cis-tramadol HCl, 1000μg/ml in MeOH, 1ml

Di-n-butyl phthalate, >99%, 25g

6-Ethylchrysene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 2732-58-3

Performance Control Mixture 4 Analytes each Wt.% as listed; units: 1x1mL, 5x1mL neat Name Wt. % Name Wt. % n-Hexadecane 75.0 Tetralin 3.0 Naphthalene 2.0