p-Xylene Back Catalog number: 30591 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-23AS Alternative Standard, 1.2ml, nonane Price on request 680369 Dibutyl phthalate, 100 µg/ml, Acetone, 1ml Price on request 11966.18-K-ME Dextromethorphan hydrobromide monohydrate,1000 µg base/mL,MeOH,1mL, Price on request