Demeton-O, 100 µg/ml, Ethyl acetate, 1ml Back Catalog number: 677521 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 3771.6-K-IO 2,3-Dimethylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 5910-89-4 Price on request 31782 EPA Method 507/1656 Nitrogen Phosphorus Price on request 57779 Gold (Au) Price on request