Tafluprost Impurity 31 CAS CATO-C4X-216331
| CAS No. | CATO-C4X-216331 |
| Molecular Formula | C25H35FO5 |
| Molecular Weight | 434.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Tafluprost Impurity 31 (CAS CATO-C4X-216331, C25H35FO5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Tafluprost Impurity 31 (C25H35FO5) is characterized by a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C25H35FO5 |
| Molecular Weight | 434.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Tafluprost Standards
- Tafluprost Impurity 19 (CAS CATO-C4X-216319)
- Tafluprost 16E-Diene Impurity(Discontinued,See C4X-216310) (CAS CATO-C4X-21631)
- Tafluprost 16Z-Diene Impurity (CAS CATO-C4X-216310)
- Tafluprost Impurity 21 (CAS CATO-C4X-216321)
- Tafluprost Ethyl Amide (CAS 1185851-52-8)
- Tafluprost Impurity 17 (CAS 209860-89-9)
- Tafluprost Impurity 4 (CAS CATO-C4X-21634)
- Tafluprost Impurity 15 (CAS 209861-00-7)
Recommended Standards
- Ribociclib (CAS 1211441-98-3)
- rac-Formoterol EP Impurity H (Mixture) (CAS 2514947-17-0)
- Ensifentrine impurity 41 (CAS CATO-C4X-335341)
- Biotin-PEG3-oxyamine (CAS 1786206-22-1)
- Fenofibrate Impurity N6 (CAS 72575-86-1)
- Ozenoxacin Impurity 70 (CAS CATO-C4X-279670)
- Edoxaban impurity 128 (CAS CATO-C4X-1063128)
- 2-(3-Methoxyphenyl)-2'-oxospiro[cyclopropane-1,3'-indoline]-5'-carboxylic acid (CAS 1707563-47-0)
- 2,4-Dimethylpentan-1-ol (CAS 6305-71-1)
- (S)-2-((3-bromophenoxy)methyl)oxirane (CAS 1024843-97-7)
- 2-(2-Bromophenyl)-3-oxopentanenitrile (CAS 1342374-07-5)
- (R)-4-(tert-pentyl)-2-(pyrrolidin-2-yl)phenol (CAS 1213956-70-7)
- 4-[3-(Methylsulfanyl)phenyl]-2,3,4,5-tetrahydro-1,4-benzoxazepin-3-one (CAS 1358242-97-3)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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