Guanylurea, 1000µg/ml in Water, 1ml Back Catalog number: 74085 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-A10-CSL Extended Calibration/Low Level Solution, 200ul, nonane Price on request 675293 Biperiden hydrochloride, 10mg Price on request 676364 2-Methylimidazole, 100mg Price on request