BTEX Standard Back Catalog number: 98418 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675243 Paraoxon-ethyl, 100 µg/ml, Acetonitrile, 5ml Price on request 11695.12-100-IO 2,3,4,4'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 10958.10-100-ME R)-(-)-Carvone. 98%,100 µg/mL,MeOH,1mL Price on request