Perchlorate Level 5 Back Catalog number: 59343 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0784.17-500-IO 1,2,9-Trimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 146448-88-6 Price on request S-4172-10ML Daily Quality Control Standard (with Internal Standard) 15 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% n-Hexane 11 Ethylbenzene Price on request 673498 4,4'-Dichlorobenzophenone, 250mg Price on request