Levothyroxine Impurity 44 CAS 176258-89-2
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 176258-89-2 |
| Molecular Formula | C14H10I4O2 |
| Molecular Weight | 717.85 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Levothyroxine Impurity 44 (CAS 176258-89-2) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C14H10I4O2. Molecular weight: 717.85 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C14H10I4O2 |
| Molecular Weight | 717.85 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | I-containing |
Related Levothyroxine Standards
- Levothyroxine EP Impurity I (CAS 2016-06-0)
- 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
- 2,3,6,7,12,13,16,17-Octahydro-9-[4-[[[2-[(2-methyl-1-oxo-2-propenyl)oxy]ethyl]amino]sulfonyl]-2-sulfophenyl]-1H,5H,11H,15H-xantheno[2,3,4-ij:5,6,7-i'j']diquinolizin-18-ium Inner Salt (CAS 386229-75-0)
- Ga(III) meso-Tetraphenylporphine chloride (CAS 78833-52-0)
- t-Boc-N-amido-PEG-acid 3000 (CAS 187848-68-6)
- Lifitegrast Impurity 37 (CAS 1194550-56-5)
- Esomeprazole Impurity 131 (CAS CATO-C4X-1112131)
- 5-Phenyl-3,4,4a,5,6,10b-hexahydro-2H-pyrano[3,2-c]quinoline (CAS 248603-38-5)
- 1774895-99-6 tert-Butyl 4-(2-bromo-6-(trifluoromethyl)-phenyl)piperazine-1-carboxylate (CAS 1774895-99-6)
- 3'-Ethyl-3',4'-dihydro-1'H-spiro[cyclopentane-1,2'-quinazoline]-4'-one (CAS 866010-37-9)
- (S)-2-Amino-3-(4-chloro-2-fluorophenyl)propanoic acid (CAS 185837-15-4)
- Fas C- Terminal Tripeptide (CAS 189109-90-8)
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