≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Tantalum(V) ethoxide Ta(OC2H5)5 is a tantalum alkoxide that can be used as a precursor in the preparation of tantalum oxide by chemical vapor deposition (CVD). It has excellent volatility and thermal stability. It can be synthesized by anodic oxidation of tantalum plate in anhydrous ethanol.
Ta(OC2H5)5 can be used in the formation of ultrathin tantalum oxide based capacitors. It can also be used as a liquid precursor in the preparation of tantalum carbide nanopowder for hard coating on metal surfaces.
| Pubchem Sid | 504757495 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504757495 |
| Canonical Smiles | CC[O-].CC[O-].CC[O-].CC[O-].CC[O-].[Ta+5] |
| IUPAC Name | ethanolate;tantalum(5+) |
| InChIKey | HSXKFDGTKKAEHL-UHFFFAOYSA-N |
| INCHI | 1S/5C2H5O.Ta/c5*1-2-3;/h5*2H2,1H3;/q5*-1;+5 |
| Isomeric SMILES | CC[O-].CC[O-].CC[O-].CC[O-].CC[O-].[Ta+5] |
| PubChem CID | 160806 |
| Molecular Weight | 406.25 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organic salts |
| Class | Organic metal salts |
| Subclass | Organic transition metal salts |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Organic transition metal salts |
| Alternative Parents | Organic zwitterions Organic oxides Hydrocarbon derivatives Alkoxides |
| Molecular Framework | Not available |
| Substituents | Organic transition metal salt - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organic zwitterion - Alkoxide - Organooxygen compound - Aliphatic acyclic compound |
| Description | This compound belongs to the class of organic compounds known as organic transition metal salts. These are organic salt compounds containing a transition metal atom in its ionic form. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 C2631403 | Certificate of Analysis | Mar 07, 2026 | T194162 |
| C2631404 | Certificate of Analysis | Mar 07, 2026 | T194162 |
| C2631405 | Certificate of Analysis | Mar 07, 2026 | T194162 |
| I2526576 | Certificate of Analysis | Aug 23, 2025 | T194162 |
| I2526575 | Certificate of Analysis | Aug 23, 2025 | T194162 |
| I2526574 | Certificate of Analysis | Aug 23, 2025 | T194162 |
| E2513451 | Certificate of Analysis | Mar 21, 2025 | T194162 |
| E2513449 | Certificate of Analysis | Mar 21, 2025 | T194162 |
| E2513450 | Certificate of Analysis | Mar 21, 2025 | T194162 |
| H2420377 | Certificate of Analysis | Aug 02, 2024 | T194162 |
| C2511194 | Certificate of Analysis | Aug 02, 2024 | T194162 |
| H2420376 | Certificate of Analysis | Aug 02, 2024 | T194162 |
| H2420375 | Certificate of Analysis | Aug 02, 2024 | T194162 |
| D2430124 | Certificate of Analysis | Mar 18, 2024 | T194162 |
| D2430130 | Certificate of Analysis | Mar 18, 2024 | T194162 |
| D2430129 | Certificate of Analysis | Mar 18, 2024 | T194162 |
| L2319107 | Certificate of Analysis | Jan 05, 2023 | T194162 |
| B2418202 | Certificate of Analysis | Jan 05, 2023 | T194162 |
| C2308034 | Certificate of Analysis | Jan 05, 2023 | T194162 |
| C2308020 | Certificate of Analysis | Jan 05, 2023 | T194162 |
| C2308019 | Certificate of Analysis | Jan 05, 2023 | T194162 |
| C2204038 | Certificate of Analysis | May 30, 2022 | T194162 |
| Solubility | Soluble in organic solvents. |
|---|---|
| Sensitivity | air & Moisture sensitive. |
| Refractive Index | 1.4880 |
| Flash Point(°C) | 30°C |
| Boil Point(°C) | 155°C/0.01mmHg |
| Melt Point(°C) | 21 °C |
| Molecular Weight | 406.250 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 0 |
| Exact Mass | 406.118 Da |
| Monoisotopic Mass | 406.118 Da |
| Topological Polar Surface Area | 115.000 Ų |
| Heavy Atom Count | 16 |
| Formal Charge | 0 |
| Complexity | 2.800 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 6 |
| 1. Yanzhi Dong, Gang Shu, Yibo Wei, Jinbin Pan, Dong Li, Shao-Kai Sun. (2024) Gram-Scale Synthesis of Renal-Clearable Tantalum Nanodots with High Water Solubility for Computed Tomography Imaging In Vivo. ACS Nano, [PMID:39207307] [10.1021/acsnano.4c06705] |
| 2. Deye Sun, Wenru Li, Yantao Wang, Jiangwei Ju, Pengxian Han, Shanmu Dong, Jun Ma, Guanglei Cui. (2025) Combined effect of high voltage and large Li-ion flux on decomposition of Li6PS5Cl. Chemical Science, 16 (23): (10289-10295). [PMID:40386158] [10.1039/D5SC02018B] |
| 3. Wanwan Wu, Linjie Song, Yinqi Qiao, Yan Bai, Xue Liu, Haiyan Li, Dongbin Dang. (2026) In-situ grown lead-free perovskite Cs3Bi2Br9 on porous Ta2O5 for boosted gas–solid phase CO2 photocatalytic conversion. APPLIED SURFACE SCIENCE, [PMID:] [10.1016/j.apsusc.2026.166174] |
