Urea Back Catalog number: 93626 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10112.18-50-IO 1,9-Dimethyl-5-ethylphenanthrene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 680595 3-Hydroxybutyric acid, 100 µg/ml, Acetonitrile, Price on request 71406 Tetramethylurea Price on request