Guanylurea, 1000µg/ml in Water, 1ml Back Catalog number: 74085 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-23CS1-5 EPA Method 23 Calibration Kit, 5 ampoules, nonane Price on request 10330.17-100-ME Norcocaine Price on request 15900-1140-100AN5 2,4-D, 100µg/ml in Acetonitrile, 5ml Price on request