Levothyroxine Impurity 37 CAS 94345-95-6
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 94345-95-6 |
| Molecular Formula | C16H15I2NO4 |
| Molecular Weight | 539.10 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Levothyroxine Impurity 37 (CAS 94345-95-6) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C16H15I2NO4. Molecular weight: 539.10 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C16H15I2NO4 |
| Molecular Weight | 539.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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.) | 1983 |
| 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 EP Impurity E (CAS 1041-01-6)
- Levothyroxine Impurity 18 (CAS 1155-40-4)
- Levothyroxine Impurity 58 (CAS 176258-87-0)
- Levothyroxine Impurity 38 (CAS 1027-28-7)
- Levothyroxine Impurity 42 (CAS 4618-45-5)
Recommended Standards
- (S)-Methyl 2-amino-3-(4-(4-hydroxyphenoxy)-3,5-diiodophenyl)propanoate (CAS 203585-45-9)
- N-(2-Hydroxyethyl)perfluoro(2,5-dimethyl-3,6-dioxanonan)amide (CAS 137506-19-5)
- 5-(3-Chlorophenoxy)-N1,N1,N3,N3-tetraphenylbenzene-1,3-diamine (CAS 2252518-02-6)
- Tenofovir disoproxil Impurity 144 (CAS CATO-C4X-1076144)
- Buspirone EP Impurity C HCl (CAS CATO-C4X-125819)
- Gefitinib Impurity 21 HCl (CAS 184475-68-1)
- Ac-Ala-Ser-Thr-Asp-AMC (I-1785.0005) (CAS 354151-60-3)
- 3-(2-Methoxy-4'-(methoxycarbonyl)-[1,1'-biphenyl]-4-yl)propanoic acid (CAS 406233-39-4)
- 1-Chloro-3-(2-methoxyethoxy)-2-methylpropane (CAS 1341685-97-9)
- Exenatide Acetate (CAS 141732-76-5)
Why CATO?
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