Efavirenz-13C6 Back Catalog number: 10612.14-100-ME Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 82483 EPA Method 8325 Surrogate Standard Price on request 8839.8-K-IO 2-Isobutylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request 9562.14-K-IO Dibutylphenylphosphate, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 2528-36-1 Price on request