Baloxavir Impurity 144 CAS CATO-C4X-2108144
| CAS No. | CATO-C4X-2108144 |
| Molecular Formula | C14H10F2S |
| Molecular Weight | 248.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Baloxavir Impurity 144 is closely related to sulfur-containing functionality, fluorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Baloxavir Impurity 144 (CAS CATO-C4X-2108144) is a certified pharmaceutical impurity reference standard with the molecular formula C14H10F2S and a molecular weight of 248.29 g/mol.
Based on its molecular formula C14H10F2S, Baloxavir Impurity 144 contains sulfur-containing functionality, fluorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 248.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C14H10F2S |
| Molecular Weight | 248.29 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Baloxavir Standards
- Baloxavir Impurity 18 (CAS 1820001-72-6)
- Baloxavir Marboxil Impurity 191 (CAS 1820002-36-5)
- Baloxavir Marboxil Impurity 203 (CAS CATO-C4X-2108203)
- Baloxavir Impurity 30 (CAS 119736-16-2)
- Baloxavir Marboxil Impurity 241 (CAS 2136287-71-1)
- Baloxavir Marboxil Impurity 235 (CAS CATO-C4X-2108235)
- Baloxavir Impurity 24 (CAS 2365473-57-8)
- Baloxavir Marboxil Impurity 171 (CAS CATO-C4X-2108171)
Recommended Standards
- 4-(4-Fluorophenyl)bicyclo[2.2.2]Octane-1-carboxylic acid (CAS 68756-19-4)
- Lemborexant Impurity 55 (CAS CATO-C4X-304255)
- 1,1,1,3,3-Pentachloro-3-fluoropropan-2-one (CAS 2378-08-7)
- Penfluridol Impurity 1 (CAS 3799-84-6)
- Phenylephrine Impurity 101 (CAS 1312706-18-5)
- Sildenafil Impurity 63 (CAS 247584-81-2)
- Clopidogrel Impurity 52 (CAS 1430373-12-8)
- Potassium (3,4-difluorobenzyl)trifluoroborate (CAS 2126821-86-9)
- Octyl 3-oxobutanoate (CAS 16436-00-3)
- 2-[1-(aminomethyl)-3-methylcyclopentyl]acetic acid hydrochloride (CAS 1461713-35-8)
- 4-(2-pyridylazo)resorcinol (CAS 1141-59-9)
- tert-Butyl (5-hydroxy-1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-yl)carbamate (CAS 175712-63-7)
- Tivozanib Impurity 23 (CAS CATO-C4X-340023)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
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