Levothyroxine Impurity 27 CAS 671235-41-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 671235-41-9 |
| Molecular Formula | C16H11I4NO5 |
| Molecular Weight | 804.88 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Levothyroxine Impurity 27 (CAS 671235-41-9) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C16H11I4NO5. Molecular weight: 804.88 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C16H11I4NO5 |
| Molecular Weight | 804.88 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Levothyroxine Standards
- Levothyroxine Ethyl Ester (CAS 76353-71-4)
- Levothyroxine Impurity 30 (CAS 107849-54-7)
- Levothyroxine impurity 47 (CAS CATO-C4X-167847)
- Levothyroxine Methyl Ester (CAS 32180-11-3)
- Levothyroxine N-Acetyl Impurity (CAS 26041-51-0)
- Levothyroxine Impurity 24 (CAS CATO-C4X-167824)
- Levothyroxine N-Methylamide (CAS 2088032-52-2)
- Levothyroxine Impurity 4 (CAS 910907-23-2)
Recommended Standards
- Posaconazole Benzoate (CAS CATO-C4X-1208194)
- Stevioside (CAS 57817-89-7)
- 4,4''-Bis(4,4,5,5,6,6,6-heptafluoro-1,3-dioxohexyl)-o-terphenyl-4'-sulfonyl chloride (CAS 200862-70-0)
- Eplerenone Impurity 42 (CAS CATO-C4X-163042)
- Cefotaxime Impurity 81 (CAS CATO-C4X-120181)
- (R,R)-Moxifloxacin Impurity 112 (CAS CATO-C4X-1074112)
- (2R)-4-Pentyn-2-ol (CAS 159407-28-0)
- Bicalutamide Impurity 9 (CAS 393-36-2)
- 1-((4-(Benzylamino)-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-6-yl)amino)propan-2-ol (CAS 897758-20-2)
- Prolactin-Releasing Peptide (12-31), rat (CAS 222988-10-5)
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