1,3-Indandione
（重定向自Indandione）
![Skeletal formula](/Images/godic/202501/20/1,3-indanon.svg5450.png")
![Ball-and-stick model](/Images/godic/202501/20/Indandione-3D-balls5450.png")
![](/Images/godic/202501/20/Bindone-formation.svg5450.png")
![](/Images/godic/202501/20/Reduction_1,3-Indanedione.svg5450.png")
1,3-Indandione (indanedione) is an organic compound with the molecular formula C9H6O2. Chemically, it is a β-diketone. In standard conditions it is referred to in different sources as either a colorless or yellowish, green, or (most commonly) yellow solid.