Thulium(III) chloride CAS 13537-18-3
| CAS No. | 13537-18-3 |
| Molecular Formula | Cl3Tm |
| Molecular Weight | 275.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Thulium(III) chloride is closely related to chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Thulium(III) chloride (CAS 13537-18-3) is a high-purity analytical reference standard with the molecular formula Cl3Tm and a molecular weight of 275.29 g/mol.
The molecular framework of Thulium(III) chloride (Cl3Tm) is characterized by chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | Cl3Tm |
| Molecular Weight | 275.29 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Cl-containing |
Related Thulium Standards
- Thulium(III) fluoride (CAS 13760-79-7)
- Thulium(III) acetate (CAS 39156-80-4)
- Thulium trioxide (CAS 12036-44-1)
- Thulium(III) iodide (CAS 13813-43-9)
- Thulium trichloride hydrate (CAS 114363-74-5)
- Thulium(III) chloride hexahydrate (CAS 1331-74-4)
- Thulium(III) chloride hexahydrate (CAS 13778-39-7)
- Thulium sulfate octahydrate (CAS 13778-40-0)
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