High Purity 99.999% Alkene & Derivatives CAS No.:74-82-8 Other Names:Methane gas MF:CH4 EINECS No.:200-812-7 Place of Origin:Guangdong, China Grade Standard: Agriculture Grade, Electron Grade, Industrial Grade, Medicine Grade, Reagent Grade Purity:99.999% Appearance:Colorless Application:Fuel, Chemical feedstock, Natural gas Brand Name:CCSG gas Model Number: 40L, 44L, 47L, 49L Steel Cylinder