Tris(diethylamido)(ethylimido)tantalum(V)
Tris(diethylamido)(ethylimido)tantalum(V), CAS 67313-80-8, with the formula C2H5NTa(N(C2H5)2)3 and a molecular weight of 440.40 g/mol, is a specialised organometallic compound. It is primarily utilised as a precursor in advanced material deposition techniques, particularly for chemical vapour deposition (CVD) and atomic layer deposition (ALD) processes. Its specific chemical structure makes it valuable for depositing thin films containing tantalum.
- IUPAC
- Tris(diethylamino)(ethylimino)tantalum(V)

Chemical Vapour Deposition (CVD)
This compound serves as a precursor in CVD processes for depositing thin films of tantalum-containing materials. Its volatility and decomposition characteristics are critical for achieving uniform and high-quality film growth on substrates.
Atomic Layer Deposition (ALD)
It is employed in ALD to deposit conformal and precisely controlled thin films. The sequential and self-limiting reactions in ALD enable the growth of ultra-thin layers essential for microelectronics and advanced coatings.
Materials Science Research
Researchers utilise this organotantalum compound in the development of novel materials with specific electronic, optical, or structural properties. Its unique chemistry allows for the exploration of new material compositions.
Catalysis and Inorganic Chemistry
The compound may find applications in specialised catalytic processes or as a building block in inorganic synthesis due to the presence of tantalum and its reactive ligands.
| Molecular weight | 440.40 |
|---|---|
| Linear formula | C2H5NTa(N(C2H5)2)3 |
| Assay | 99.99% trace metals basis |
| Density | 1.31 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.51(lit.) |


Hazard statements
- H225Highly flammable liquid and vapour
- H314Causes severe skin burns and eye damage
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 2 °C / 35.6 °F |
| Transport (UN / ADR) | UN 2924 8(3) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11-34 |
| Safety statements (S) | 16-26-27-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Tris(diethylamido)(ethylimido)tantalum(V) used for?
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Tris(diethylamido)(ethylimido)tantalum(V) is primarily used as a precursor in chemical vapour deposition (CVD) and atomic layer deposition (ALD) for depositing tantalum-containing thin films, and in materials science research.
What is the CAS number and formula for Tris(diethylamido)(ethylimido)tantalum(V)?
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The CAS number is 67313-80-8, and the chemical formula is C2H5NTa(N(C2H5)2)3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product with an assay of 99.99% trace metals basis. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades.
What are the main hazards associated with this compound?
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This compound is highly flammable (H225) and causes severe skin burns and eye damage (H314). It requires careful handling in a well-ventilated area, away from ignition sources, using appropriate personal protective equipment.
How is Tris(diethylamido)(ethylimido)tantalum(V) typically packed and shipped?
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It is typically packed and shipped according to UN 2924 regulations for corrosive and flammable liquids, in appropriate packaging (PGII) suitable for international export.
How can I request a quote or sample for Tris(diethylamido)(ethylimido)tantalum(V)?
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To request a quote or sample, please contact our sales team through the website or by phone, providing the product name and CAS number (67313-80-8).
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