2,2,5,5-Tetramethyltetrahydrofuran Back Catalog number: 71549 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 19063 EPA Method 525 - PCB Standard Price on request 11760.12-100-IO 2,2',3,3',5,6,6'-Heptachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 1135.15-K-IO n-Pentadecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 629-62-9 Price on request