TOC standard, 200mg/l in H2O, 500ml Back Catalog number: 260-000-152 Availability: In the manufacturer's stock Price on request - + Recommended C16972720 Spectinomycin sulfate hydrate, certified, 0.1g Price on request 681243 Flucetosulfuron, 25mg Price on request 673660 Permethrin, 100 µg/ml, Ethyl acetate, 5ml Price on request