Emtricitabine Cyclic Impurity 40 CAS CATO-C4X-123240
| CAS No. | CATO-C4X-123240 |
| Molecular Formula | C8H9FN2O4S |
| Molecular Weight | 248.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H9FN2O4S, Emtricitabine Cyclic Impurity 40 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 248.23 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).
CATO supplies Emtricitabine Cyclic Impurity 40 (CAS CATO-C4X-123240), a pharmacopoeial impurity reference standard (molecular formula C8H9FN2O4S, MW 248.23 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Emtricitabine Cyclic Impurity 40 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H9FN2O4S |
| Molecular Weight | 248.23 g/mol |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Emtricitabine Standards
- 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)
- Emtricitabine Diastereomer (RS ISOMER ) (CAS 143491-54-7)
Recommended Standards
- Indometacin Impurity 46 (CAS CATO-C4X-147046)
- Dexrazoxane Impurity 23 (CAS CATO-C4X-202023)
- Dexrazoxane Impurity 24 (CAS CATO-C4X-202024)
- Dexrazoxane Impurity 43 (CAS CATO-C4X-202043)
- Linezolid Impurity 56 (CAS 725676-93-7)
- Fudosteine impurity 73 (CAS CATO-C4X-144773)
- Glucose Impurity 35 (CAS CATO-C4X-209535)
- (2E,4E)-2-cyano-N-((E)-(dimethylamino)methylene)-5-phenylpenta-2,4-dienamide (CAS 303995-06-4)
- 2-(Benzo[d]thiazol-2-yl)-2-methylpropanenitrile (CAS 66277-05-2)
- 6-Bromo-3-formyl-1H-indazole-4-carboxylic acid (CAS 885523-80-8)
- Ethyl 3-(4-chlorophenyl)propanoate (CAS 7116-36-1)
- Ibuprofen EP Impurity P (CAS 36039-36-8)
- 1-(4-Hydroxyphenyl)-2,6-dimethylpyridin-4(1H)-one (CAS 385374-16-3)
- Peptide 432 (CAS CATO-CPTD788432)
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 18665070610 / Nicole.chen@cato-chem.com