BTEX Mixture 4 S-4408-200-10CY 6 Analytes, each 200µg/mL in cyclohexane; units: 1x1mL, 1x10mL Chiron No. Compound CAS No. 1300.6 Benzene [71-43-2] 1264.7 Toluene [108-88-3] 1268.8 Ethylbenzene [100-41-4] 1267.7