COD Calibration Standard Back Catalog number: 51255 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3384.12-100-ME Diquat dibromide monohydrate,100 µg/mL (as Diquat),MeOH,1mL, Price on request 30521 Methyl-3,5-dichlorobenzoate Price on request 70593 Chlorpyrifos methyl Price on request