Internal Standard Back Catalog number: 95665 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 34241 n-Butylcyclohexane Price on request 8704.12-5MG 2,3,3',4',6-Pentachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 38380-03-9 Price on request 677976 Disulfoton-sulfone, 100 µg/ml, Toluene, 1ml Price on request