EPA 1620 Standard 4 Back Catalog number: 53142 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1624.12-100-IO 1,1,1,3,10,12,12,12-Octachlorododecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 601523-21-1 Price on request 672975 Sulfamerazine, 250mg Price on request 9665.17-10MG 2,5,8-trimethyl-1-butyltetraline, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. Price on request