Organic chemicals

Ethane and butane, saturated, having a purity of 95% or more by volumeEthane and butane (Saturated:)

n-Pentane and isopentane<i>n</i>-Pentane and isopentane (Saturated:)

Saturated acyclic hydrocarbon (not ethane,butane,n-pentane or isopentane),derived in whole or part from petroleum,shale oil or natural gasDerived in whole or in part from petroleum, shale oil or natural gas (Other:)

Saturated acyclic hydrocarbon (not ethane,butane,n-pentane or isopentane),not derived in whole or part petroleum,shale oil or natural gasOther (Other:)

EthyleneEthylene (Unsaturated:)

Propene (Propylene)Propene (Propylene) (Unsaturated:)

Butene (Butylene) and isomers thereofButene (Butylene) and isomers thereof (Unsaturated:)

Buta-l,3-dieneButa-1,3-diene (Buta-1,3-diene and isoprene:)

Isoprene, having a purity of 95 percent or more by weightHaving a purity of 95 percent or more by weight (Isoprene:)

Isoprene less than 95 percent pureOther (Isoprene:)