Internal Standard ASTM D-5307 Back Catalog number: 51124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678000 Isofenphos, 100 µg/ml, Toluene, 1ml Price on request 676632 Chlorotoluron-desmethyl, 100mg Price on request 3993.9-K-CY cis-1,2,trans-1,4-1,2,4-Trimethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 7667-58-5 Price on request