Isofenphos Back Catalog number: 70717 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92332 Resource Exploration Standard #2 Price on request DD-237-S 2,3,7-Trichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request 92262 PCB Congeners Price on request