Sylvia, Georgina M. et al. published their research in Tetrahedron in 2018 | CAS: 66943-05-3

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.COA of Formula: C10H21NO4

A spiropyran with enhanced fluorescence: A bright, photostable and red-emitting calcium sensor was written by Sylvia, Georgina M.;Heng, Sabrina;Bachhuka, Akash;Ebendorff-Heidepriem, Heike;Abell, Andrew D.. And the article was included in Tetrahedron in 2018.COA of Formula: C10H21NO4 This article mentions the following:

A rationally designed, pyrene-spiropyran hybrid Ca2+ sensor 1′,3′-dihydro-3′,3′-dimethyl-6-nitro-1′-(2-pyrenylmethyl)-8-(1,4,7,10-tetraoxa-13-azacyclopentadec-13-ylmethyl)spiro[2H-1-benzopyran-2,2′-[2H]indole], Py-1 (I), with enhanced fluorescence intensity compared to a standalone spiropyran analog is presented. Importantly, I retains the characteristic red emission profile of the spiropyran, while fiber-based photostability studies show the sensor is stable after multiple cycles of photoswitching, without any sign of photodegradation Such properties are of real advantage for cell-based sensing applications. An interesting observation is that, I presents with two excitation options; direct green excitation (532 nm) of the photoswitch for a red emission, and UV excitation (344 nm) of the component pyrene, which gives rise to distinct blue and red emissions. This proof-of-concept hybrid sensing system presents as a more general approach to brighter spiropyran-based sensors. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3COA of Formula: C10H21NO4).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.COA of Formula: C10H21NO4

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