EPA 1620 Standard 5 Back Catalog number: 52143 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680655 Dothiepin hydrochloride, 25mg Price on request 3123.16-K-IO Diisobutyl phthalate-3,4,5,6-d4,1000 µg/mL,isooctane,1mL, Price on request 11805.12-50-NN 2,8-Dichlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request