Levothyroxine Ethyl Ester CAS 76353-71-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 76353-71-4 |
| Molecular Formula | C17H15I4NO4 |
| Molecular Weight | 804.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Levothyroxine Ethyl Ester (CAS 76353-71-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C17H15I4NO4. Molecular weight: 804.92 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C17H15I4NO4 |
| Molecular Weight | 804.92 g/mol |
| 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.) | 1978 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Levothyroxine Standards
- Levothyroxine Impurity 27 (CAS 671235-41-9)
- Levothyroxine Impurity 30 (CAS 107849-54-7)
- Levothyroxine impurity 47 (CAS CATO-C4X-167847)
- Levothyroxine N-Acetyl Impurity (CAS 26041-51-0)
- Levothyroxine Methyl Ester (CAS 32180-11-3)
- Levothyroxine Impurity 24 (CAS CATO-C4X-167824)
- Levothyroxine N-Methylamide (CAS 2088032-52-2)
- Levothyroxine Impurity 4 (CAS 910907-23-2)
Recommended Standards
- 4,4''-Bis(4,4,5,5,6,6,6-heptafluoro-1,3-dioxohexyl)-o-terphenyl-4'-sulfonyl chloride (CAS 200862-70-0)
- Posaconazole Benzoate (CAS CATO-C4X-1208194)
- 9'-(4-(4,6-Diphenyl-1,3,5-triazin-2-yl)phenyl)-9'H-9,3':6',9''-tercarbazole (CAS 1361093-61-9)
- 4-Bromocyclopent-2-en-1-one (CAS 765-56-0)
- 4-Bromo-1-(2-fluoroethyl)-3-(propoxymethyl)-1H-pyrazole (CAS 1856073-62-5)
- 2-Amino-3-hydroxypropanenitrile hydrochloride (CAS 1461707-49-2)
- 1-(Indolizin-1-yl)ethanone (CAS 128353-08-2)
- 1,2,3,4-Tetra-O-acetyl-D-xylopyranose (CAS 62929-49-1)
- (αS)-α-[(3-Ethoxy-1-methyl-3-oxo-1-propenyl)amino]benzeneacetic Acid Monopotassium Salt (CAS 20421-26-5)
- Peptide Impurity 28 (CAS 1350456-64-2)
Why CATO?
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