Siduron Back Catalog number: 70833 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72338 1-(2,3-Dichlorophenyl)-3-methylurea Price on request I140004 Ibuprofen-13C,d3, 1mg Price on request 0764.16-500-IO 1,9-Dimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 20291-73-0 Price on request