Color Back Catalog number: 54255 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674033 Fluometuron-desmethyl, 10.0 µg/ml, Methanol, 10m Price on request 52140 EPA 1620 Standard 2 Price on request 0402.23-150-CYX5 n-Tricosane, ?13C: -26.71, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 638-67-5 Price on request