Emtricitabine Impurity 36 CAS CATO-C4X-123236
| CAS No. | CATO-C4X-123236 |
| Molecular Formula | C12H14FN3O5S2 |
| Molecular Weight | 363.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 363.39 g/mol gives Emtricitabine Impurity 36 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Emtricitabine Impurity 36 (CAS CATO-C4X-123236) is a certified pharmaceutical impurity reference standard with the molecular formula C12H14FN3O5S2 and a molecular weight of 363.39 g/mol.
Emtricitabine Impurity 36 (C12H14FN3O5S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H14FN3O5S2 |
| Molecular Weight | 363.39 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Emtricitabine Standards
- Emtricitabine Isopropyl Carbamate (CAS CATO-C4X-123217)
- Emtricitabine impurity 47 (CAS CATO-C4X-123247)
- Emtricitabine Impurity 16 (CAS 764659-79-2)
- Emtricitabine Menthyl Ester Impurity (CAS 764659-72-5)
- Emtricitabine Impurity 30 (CAS 147126-75-8)
- Emtricitabine impurity 53 (CAS 147027-01-8)
- Emtricitabine Impurity 57 (CAS 1773498-61-5)
- Emtricitabine Impurity 59 (CAS 1422361-25-8)
Recommended Standards
- Cefadroxil Impurity 43 (CAS CATO-C4X-122443)
- Omeprazole Impurity 11 (CAS CATO-C4X-125511)
- Cefadroxil USP Related Compound I (CAS 147103-94-4)
- Cephalexin Oxide Impurity 1 (CAS 56193-21-6)
- Rosuvastatin Impurity 59 (CAS 2185805-16-5)
- Ketorolac EP Impurity J (CAS 108061-03-6)
- Ceftazidime Impurity 42 (CAS CATO-C4X-121242)
- 4-(Cyclopropylmethoxy)benzonitrile (CAS 1019619-83-0)
- tert-Butyl (3-methyl-2,4-dioxo-3,4-dihydroquinazolin-1(2H)-yl)carbamate (CAS 159850-23-4)
- 2-(3-Methylphenyl)-2-oxoacetic acid (CAS 61560-94-9)
- 2-(4-Methoxyphenyl)-1-(piperazin-1-yl)ethan-1-one (CAS 119784-75-7)
- 3-(2,2,2-Trifluoro-1,1-dihydroxyethyl)pyrrolidin-2-one (CAS 1219000-15-3)
- Diquafosol Impurity 3 (CAS 221169-12-6)
- D-Ala35-Tirzepatide (CAS CATO-CPTD788904)
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