Ethane Two-carbon alkane; natural gas component 🧪 Building Blocks PDB source ↓ Drag to rotate · scroll to zoom 3D viewer requires JavaScript. Static renders available below. Structure Formula C2H6 Molecular weight 30.070 g/mol Heavy atoms 2 Total atoms 8 Composition C ×2 H ×6 SMILES CC ⧉ Copy Class Alkane