Surrogate Standard Back Catalog number: 91625 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677959 Demeton-S-methyl, 100 µg/ml, Toluene, 1ml Price on request 72453 Nicosulfuron, 1000µg/ml in Acetonitrile, 1ml Price on request 672945 trans-Permethrin, 10mg Price on request