EPA Method 624 Surrogate Standard Back Catalog number: 19112 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended P838289 Propylparaben-d4, 1mg Price on request 679992 (R)-(-)-Littorine hydrochloride, 10mg Price on request 1603.8-K-IO 5-Fluoroindole, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 399-52-0 Price on request