Verification II Standard 2 Back Catalog number: 53020 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93893 Semi-Volatile Mix Price on request 675552 Chlorthiophos, 100 µg/ml, Ethyl acetate, 5ml Price on request 0815.15-K-IO 9-Methylphenanthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 883-20-5 Price on request