What is the chemical formula of KIT-6?

I have seen KIT-6 used in literature as a catalyst support, but cannot find the chemical formula for it. 




According to original paper [(1)](https://dx.doi.org/10.1039/B306504A), KIT-6 is a highly ordered cubic $Ia3d$ silica ($\ce{SiO2}$) templated by [Pluronic P123](https://en.wikipedia.org/wiki/Pluronic_P-123) ($\ce{[EO20PO70EO20]}$) block-copolymer surfactant. As a source of $\ce{Si}$, tetraethoxysilane (TEOS) or sodium silicate are primarily used.


(1) Kleitz, F.; Choi, S. H.; Ryoo, R.; *Chem. Commun.* **2003,** *0* (17), 2136–2137. DOI: [10.1039/B306504A](https://dx.doi.org/10.1039/B306504A)


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KIT-6 is a mesoporous silica, the chemical formula is the same for all silica which is $\ce{(SiO2)\_n}$. The tridimensional structure though is usually represented as 


[![enter image description here](https://i.stack.imgur.com/15SEq.png)](https://i.stack.imgur.com/15SEq.png)


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According to this data sheet ([LINK](https://www.acsmaterial.com/media/catalog/product/s/d/sds_kit-6_1.pdf)) is SiO2.


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