EPA Method 525.2Mix Back Catalog number: 92367 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8609.3-K-ME 1,3-Dichloro-2-propanediol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 96-23-1 Price on request 54235 Selenium (IV) Selenite, 1000µg/ml in Water, 100ml Price on request D230100 3-Dehydro Retinol, 95%, 1mg Price on request