WP Non-Filterable Residue Back Catalog number: 54134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8421.4-100-ME Desphenyl chloridazon, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 681242 Pefurazoate, 5mg Price on request 672887 Terbutryn, 250mg Price on request