Formaldehyde-2,4-DNPH, 1000µg/ml in AL, 5ml Back Catalog number: 685692 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 83508 Dinoseb methyl ether Price on request 19097 EPA Method 602 - Surrogate Standard Price on request 675079 Clopyralid-methyl, 10mg Price on request