Pure organic gases we can provide: Methane(ch4):99.9%-99.995% Ethane(c2h6):99.9%-99.99% Methyl chloride(ch3cl):99.5% Ethyl chloride(c2h5cl):99.7% Ethylene oxide(c2h4o):99.9% Propane:(c3h8):99-99.88% N-butane£¨n-c4h10):99.5-99.99% Acetylene(c2h2):99.8-99.9% Isobutane (i-c4h10):99.5-99.99% I-butane(c4h8):99.95% Cis-2-butene (c4h8)95% Ethylene£¨c2h4):99.95-99.99% Propylene(c3h6):99.9-99.99% Allene(c3h4):93% N-pentane (n-c3h12):99.5% I-sopentane(i-c5h12):99.5% Cylinder package if in need please feel free to contact us . We are looking forward establishing long-term relationship with you Cylinder package