Levothyroxine Impurity 43 CAS 854646-83-6
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 854646-83-6 |
| Molecular Formula | C8H7I2NO3 |
| Molecular Weight | 418.96 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Levothyroxine Impurity 43 (CAS 854646-83-6) pharmacopoeial impurity standards reference standard. Molecular formula: C8H7I2NO3. Molecular weight: 418.96 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C8H7I2NO3 |
| Molecular Weight | 418.96 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Levothyroxine Standards
- Levothyroxine Impurity 36 (CAS 100130-56-1)
- Levothyroxine Impurity 14 (CAS 10468-90-3)
- Levothyroxine Impurity 40 (CAS CATO-C4X-167840)
- Levothyroxine Impurity 38 (CAS 1027-28-7)
- Levothyroxine Impurity 18 (CAS 1155-40-4)
- Levothyroxine Impurity 49 (CAS 106822-80-4)
- Levothyroxine Impurity 16 (CAS 4192-14-7)
- rac-Levothyroxine EP Impurity J (3,3'-DL-Diiodothyronine) (CAS 70-40-6)
Recommended Standards
- Lofepramine (CAS 23047-25-8)
- 2-((2-Chlorobenzyl)thio)-4,5-diphenyl-1-propyl-1H-imidazole (CAS 339277-46-2)
- 8-Methyl-5-nitrocinnolin-4(1H)-one (CAS 5375-23-5)
- Pregabalin Impurity 20 (CAS CATO-C4X-131220)
- Amylmetacresol EP Impurity J (CAS 10415-86-8)
- 3-Chloro-5-fluoro-N-methylbenzamide (CAS 1865077-51-5)
- 3-Chloro-N-methylpyridin-4-amine (CAS 1353101-73-1)
- tert-Butyl 4-(2-((methylsulfonyl)oxy)ethyl)piperidine-1-carboxylate (CAS 147699-19-2)
- 3-(4-(Methylthio)phenyl)-5-(((1-phenyl-1H-imidazol-2-yl)thio)methyl)-1,2,4-oxadiazole (CAS 1115958-76-3)
- D-[Thr]7-Liraglutide (CAS CATO-C4X-199237)
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