Napropamide, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678444 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 12031.14-100-NN 2,4'-DDT-13C12,100 µg/mL,n-nonane,1mL, Price on request 59224 Total Organic Carbon (C) Price on request 90435 EPA Method 8080 - Surrogate Standard Price on request