EPA Method 8141/1657 Surrogate Standard Back Catalog number: 92357 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10278.12-K-ME (±)-Sotalol-d7 hydrochloride (isopropyl-d7),1000 µg/mL,MeOH,1mL, Price on request 59404 Anions Solution B Price on request 3340.7-100-AN 4-Chlorobenzyl mercaptan Price on request