| PSITI-019 | Gelest, Incorporated | Employed in formation of titania-silica aerogels. | |
| PTI-008 | Gelest, Incorporated | Polymeric metal alkoxide that contains roughly 5% free 2-ethyl-1,3-hexanediol. | |
| PTI-023 | Gelest, Incorporated | Polymeric metal alkoxide stabilized with roughly 5% ethylene glycol. |
