Li, Pengju et al. published their research in Nano Energy in 2021 | CAS: 112-49-2

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. But ether is more polar than alkenes. At room temperature, ethers are pleasant-smelling colourless liquids. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil.Product Details of 112-49-2

Nitrofullerene as an electrolyte-compatible additive for high-performance sodium metal batteries was written by Li, Pengju;Jiang, Zhipeng;Huang, Xiaobo;Lu, Xing;Xie, Jia;Cheng, Shijie. And the article was included in Nano Energy in 2021.Product Details of 112-49-2 This article mentions the following:

Electrolyte additives have an important impact on the cycling stability of sodium metal batteries, but their applications are severely impeded by the poor compatibility with different electrolytes. Herein, rational incorporation of nitro groups on fullerene (C60) cage yields nitrofullerene (C60(NO2)6) as an effective additive, which displays high compatibility with different electrolytes and can enable highly reversible and dendrite-free plating/stripping of sodium metal anodes (SMAs). In-situ optical observation of Na electrodeposition confirms a great improvement in the cycling stability of metallic Na anodes with the C60(NO2)6 additive, which not only promotes the formation of stable protective layers on SMAs, but also facilitates the uniform Na deposition and effectively suppresses the Na dendrite growth. As a result, the Na||Na sym. cells with C60(NO2)6 show low voltage hysteresis, high rate capability and prolonged cycle life in both carbonate and ether electrolytes. Even at 5 mA cm-2 and 5 mAh cm-2, the Na||Cu half cells can stably cycle over 450 h in the ether electrolyte. Furthermore, a significantly improved cycling stability of the high loading Na||Na3V2(PO4)3@C (8.7 mg cm-2) full cell is achieved in the carbonate electrolyte. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Product Details of 112-49-2).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. But ether is more polar than alkenes. At room temperature, ethers are pleasant-smelling colourless liquids. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil.Product Details of 112-49-2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem