Levothyroxine EP Impurity E CAS 1041-01-6
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 1041-01-6 |
| Molecular Formula | C15H13I2NO4 |
| Molecular Weight | 525.08 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Levothyroxine EP Impurity E (CAS 1041-01-6) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C15H13I2NO4. Molecular weight: 525.08 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C15H13I2NO4 |
| Molecular Weight | 525.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >90% |
| 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.) | 1957 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Levothyroxine Standards
- Levothyroxine Impurity 16 (CAS 4192-14-7)
- rac-Levothyroxine EP Impurity J (3,3'-DL-Diiodothyronine) (CAS 70-40-6)
- Levothyroxine EP Impurity J (CAS 4604-41-5)
- Levothyroxine Impurity 37 (CAS 94345-95-6)
- Levothyroxine Impurity 18 (CAS 1155-40-4)
- Levothyroxine Impurity 38 (CAS 1027-28-7)
- Levothyroxine Impurity 58 (CAS 176258-87-0)
- Levothyroxine Impurity 42 (CAS 4618-45-5)
Recommended Standards
- 7-(5-((tert-Butyldiphenylsilyl)oxy)-2-chlorophenyl)-5-methylbenzo[e][1,2,4]triazin-3-amine (CAS 1245644-51-2)
- VTP 27999 (CAS 942142-51-0)
- 4-(bis(4-Iodophenyl)amino)benzaldehyde (CAS 808758-81-8)
- Atropine Impurity 22 (CAS 16052-33-8)
- Ipratropium Bromide EP Impurity B (CAS 58073-59-9)
- Resmetirom Impurity 92 (CAS CATO-C4X-291292)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-pyrrole-2-carbaldehyde (CAS 321430-69-7)
- 1,2-Bis(di-p-tolylphosphaneyl)ethane (CAS 70320-30-8)
- Mezlocillin Impurity 13 (CAS CATO-C4X-183113)
- Semaglutide Impurity 7 (CAS CATO-C4X-22267)
Why CATO?
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