Emtricitabine Impurity 39 CAS CATO-C4X-123239
| CAS No. | CATO-C4X-123239 |
| Molecular Formula | C9H12F2N2O4 |
| Molecular Weight | 250.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H12F2N2O4, Emtricitabine Impurity 39 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 250.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Emtricitabine Impurity 39 (CAS CATO-C4X-123239) is a certified pharmaceutical impurity reference standard with the molecular formula C9H12F2N2O4 and a molecular weight of 250.20 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Emtricitabine Impurity 39 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H12F2N2O4 |
| Molecular Weight | 250.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Emtricitabine Standards
- Emtricitabine-13C,15N2 (CAS 1217820-69-3)
- Emtricitabine Impurity 12 Sodium salt (CAS 127087-58-5)
- Emtricitabine Impurity N1 (CAS 143790-05-0)
- 5-epi-Emtricitabine Hydrochloride (CAS 483299-09-8)
- Emtricitabine Impurity 11 (CAS 145281-92-1)
- Emtricitabine trans-Cyclic Impurity (CAS CATO-C4X-123213)
- Emtricitabine cis-Cyclic Impurity (CAS CATO-C4X-123214)
- Emtricitabine Impurity 21 (CAS 145986-11-4)
Recommended Standards
- 2-Bromo-4-phenylthiazole 57516-16-2 8476AB C9H6BrNS (CAS 57516-16-2)
- Riluzole Impurity 6 (CAS 179070-90-7)
- Tetrahydro-4,8-ethanobenzo[1,2-c:4,5-c']difuran-1,3,5,7(3aH,7aH)-tetraone (CAS 2754-40-7)
- Phloroglucinol impurity 64 (CAS CATO-C4X-221764)
- Empagliflozin Impurity 67 (CAS CATO-C4X-106567)
- Buserelin Impurity 15 (CAS CATO-C4X-221215)
- Montelukast EP Impurity G (CAS 774538-96-4)
- 2-Amino-1-((S)-3-(benzyl(methyl)amino)pyrrolidin-1-yl)-3-methylbutan-1-one (CAS 1354027-19-2)
- 2-Chloro-5-(chloromethyl)-1,3,4-thiadiazole (CAS 65647-54-3)
- Iohexol EP Impurity E (CAS 2727061-52-9)
- 2-Methyl-4-phenylquinolin-7-ol (CAS 92855-40-8)
- 4-Iodo-6-(trifluoromethyl)pyrimidine (CAS 1209314-40-8)
- 2-(Hydroxymethylene)benzofuran-3(2H)-one (CAS 389579-63-9)
- Adrenal Peptide E, bovine (CAS 78355-50-7)
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