SDWA UV 254 Absorbance/ DOC Back Catalog number: 55098 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C11601300 Chlorpyrifos-methyl-desmethyl sodium, 25mg Price on request 679868 Tris(2-ethylhexyl) phosphate, 100µg/ml, MeOH, 5ml Price on request 31391 Dichloromethane Price on request