C₁₇H₂₆O₃

The molecular formula C₁₇H₂₆O₃ (molar mass :278.39 g/mol) may refer to:

• Isofalcarintriol, a polyacetylene found in carrots
• Panaxytriol, a fatty alcohol found in ginseng
• Paradol, the active flavor constituent of the seeds of Guinea pepper