Boron (B) Back Catalog number: 50790 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675958 1-(3,4-Dichlorophenyl)urea, 100 µg/ml, Acetonitri Price on request 50255 COD Calibration Standard Price on request 0050.22-10MG 6-Nitroanthanthrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 111438-94-9 Price on request