Chemical Oxygen Demand Back Catalog number: 59592 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675346 Di-n-propyltin dichloride, 1000 µg/ml, Methanol, Price on request 12128.8-250MG Metaldehyde,neat,neat,250mg, Price on request 678401 Ethion, 100 µg/ml, Acetonitrile, 5ml Price on request