Levothyroxine EP Impurity I CAS 2016-06-0
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 2016-06-0 |
| Molecular Formula | C13H6I4O3 |
| Molecular Weight | 717.80 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Levothyroxine EP Impurity I (CAS 2016-06-0) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C13H6I4O3. Molecular weight: 717.80 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C13H6I4O3 |
| Molecular Weight | 717.80 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | I-containing |
Related Levothyroxine Standards
- Levothyroxine Impurity 44 (CAS 176258-89-2)
- Levothyroxine Impurity 41 (CAS 2055-94-9)
- Levothyroxine lmpurity 45 (CAS CATO-C4X-167845)
- Levothyroxine EP Impurity H (CAS 2055-97-2)
- Levothyroxine Impurity 26 (CAS 176258-88-1)
- Levothyroxine Impurity 20 (CAS 2230724-39-5)
- Levothyroxine EP Impurity D (CAS 67-30-1)
- Levothyroxine Impurity 25 (CAS CATO-C4X-167825)
Recommended Standards
- Eravacycline impurity 39 (CAS CATO-C4X-293839)
- Atorvastatin EP Impurity F (CAS 1371615-56-3)
- 5,10,15,20-tetraphenyl-21<I>H</I>,23<I>H</I>-nickel porphine(II) (CAS 14172-92-0)
- Valsartan Impurity 117 (CAS CATO-C4X-1057117)
- Vasopressin Impurity 1 ·xTFA salt (CAS CATO-C4X-23651)
- 2,6-Difluorocinnamaldehyde (CAS 117338-43-9)
- dimethyl 1,3-dimethylcyclopentane-1,3-dicarboxylate (CAS 546101-12-6)
- n-(1-(2-Aminoethyl)piperidin-4-yl)butyramide (CAS 1341105-81-4)
- 4-Benzyloxy-5-methoxy-2-nitrotoluene (CAS 121086-26-8)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com