7721-01-9 Tantalum(V) chloride MFCD00011253 Tantalum chloride Tantalum chloride (TaCl5) Tantalum (V) chloride CAS 7721-01-9
| CAS No. | 7721-01-9 |
| Molecular Formula | Cl5Ta |
| Molecular Weight | 358.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7721-01-9 Tantalum(V) chloride MFCD00011253 Tantalum chloride Tantalum chloride (TaCl5) Tantalum (V) chloride (CAS 7721-01-9), molecular formula Cl5Ta and molecular weight 358.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 7721-01-9 Tantalum(V) chloride MFCD00011253 Tantalum chloride Tantalum chloride (TaCl5) Tantalum (V) chloride (Cl5Ta) contains chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 358.21 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | Cl5Ta |
| Molecular Weight | 358.21 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
Related Tantalum Standards
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- Tantalum(V) oxide (CAS 1314-61-0)
- Potassium tantalum oxide (CAS 12030-91-0)
- Tantalum tris(diethylamino)tert-butyamide (CAS 169896-41-7)
- Tantalum sulfide (CAS 12143-72-5)
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