Song, Chengling et al. published their research in Chemical Communications (Cambridge, United Kingdom) in 2015 | CAS: 313648-56-5

Dimethyl 5-ethynylisophthalate (cas: 313648-56-5) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Product Details of 313648-56-5

A NbO-type metal-organic framework exhibiting high deliverable capacity for methane storage was written by Song, Chengling;Ling, Yajing;Feng, Yunlong;Zhou, Wei;Yildirim, Taner;He, Yabing. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2015.Product Details of 313648-56-5 This article mentions the following:

A Cu-based NbO-type metal-organic framework ZJNU-50 constructed from a tetracarboxylate incorporating phenylethyne as a spacer exhibited an exceptionally high methane working capacity of 184 cm3 (STP) cm-3 for methane storage. The value is among the highest reported for MOF materials. In the experiment, the researchers used many compounds, for example, Dimethyl 5-ethynylisophthalate (cas: 313648-56-5Product Details of 313648-56-5).

Dimethyl 5-ethynylisophthalate (cas: 313648-56-5) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Product Details of 313648-56-5

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics