13C6-Sulfachloropyridazine, 10mg Back Catalog number: 679523 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 681041 2,4-D-2-ethylhexyl ester, 100mg Price on request 682835 3-Hydroxynaphthalene-2,7-disulfonic acid disodium Price on request 40003 EPA Method 601 - Purgeables Mix #4 Price on request