Heptachlor epoxide (Isomer B), 50mg Back Catalog number: N-12148-50MG Availability: In the manufacturer's stock Price on request - + Recommended A450807 Alachlor ESA-d13 Sodium Salt, 0,5mg Price on request 38040 WS Dioxin Price on request 95087 ASTM Benzene Kit Price on request