Liothyronine Impurity 5 CAS 4299-64-3
| CAS No. | 4299-64-3 |
| Molecular Formula | C15H11Cl2I2NO4 |
| Molecular Weight | 593.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Liothyronine Impurity 5.
Liothyronine Impurity 5 (CAS 4299-64-3) is a high-purity analytical reference standard with the molecular formula C15H11Cl2I2NO4 and a molecular weight of 593.97 g/mol.
Structurally, Liothyronine Impurity 5 (C15H11Cl2I2NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 593.97 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Liothyronine Impurity 5 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H11Cl2I2NO4 |
| Molecular Weight | 593.97 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 1 |
Related Liothyronine Standards
- Liothyronine Impurity N1 (CAS 92151-30-9)
- Liothyronine related impurity, (R)-2-amino (CAS 5714-08-9)
- rac-Liothyronine-15N-13C9 (CAS CATO-C4X-21313)
- Liothyronine Impurity 2 (CAS 1217733-23-7)
- Liothyronine EP Impurity B (CAS 300-39-0)
- Liothyronine EP Impurity A (CAS 51-48-9)
- Liothyronine EP Impurity A-13C9-15N (CAS 1431868-11-9)
- Liothyronine Impurity 2 (CAS 70-78-0)
Recommended Standards
- 2-Ethylhexyl Tetrabromophthalate (CAS 61776-60-1)
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- C20 Ceramide(d18:1/20:0) (CAS 123482-93-9)
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- 6,10-Dimethylundec-9-en-4-yne-3,6-diol (CAS 127897-49-8)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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