1,2,4,5-Tetrachlorobenzene Back Catalog number: 34571 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91161 EPA Method 525 Internals & Surrogates Price on request 9280.16-K-ME DL-Propranolol hydrochloride, 1000µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 318-98-9 Price on request 90876 2-Fluorobiphenyl Price on request