Sofosbuvir Impurity 42 CAS CATO-C4X-105242
| CAS No. | CATO-C4X-105242 |
| Molecular Formula | C34H45FN4O13P2 |
| Molecular Weight | 798.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Sofosbuvir Impurity 42 (CAS CATO-C4X-105242, C34H45FN4O13P2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C34H45FN4O13P2, Sofosbuvir Impurity 42 contains a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 798.69 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).
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 | C34H45FN4O13P2 |
| Molecular Weight | 798.69 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Sofosbuvir Standards
- Sofosbuvir Impurity 55 (CAS CATO-C4X-105255)
- Sofosbuvir 3,5-Bis-(S)-phosphate (CAS 1337482-17-3)
- Sofosbuvir Impurity 78 (CAS CATO-C4X-105278)
- Sofosbuvir Impurity 83 (CAS CATO-C4X-105283)
- Sofosbuvir Impurity 52 (CAS CATO-C4X-105252)
- Sofosbuvir Impurity 56 (CAS 1496551-70-2)
- Sofosbuvir Impurity 88 (CAS 30361-19-4)
- Sofosbuvir Impurity 10 (CAS CATO-C4X-105210)
Recommended Standards
- 2,2'-(9,9-Di(2,5,8,11-tetraoxatridecan-13-yl)-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 771563-20-3)
- Napipitant Impurity 5 (CAS CATO-C4X-34855)
- 5''-(3',5'-dicarboxy-[1,1'-biphenyl]-4-yl)-[1,1':4',1'':3'',1''':4''',1''''-quinquephenyl]-3,3'''',5,5''''-tetracarboxylic acid (CAS 1126896-14-7)
- Macitentan Impurity 5 (CAS CATO-C4X-11755)
- Abiraterone Impurity N5 (CAS 93830-58-1)
- Lefamulinum Impurity 15 (CAS CATO-C4X-304715)
- Argatroban Impurity 96 (CAS 951130-92-0)
- Betamethasone-delta17,20 21-Aldehyde (Mixture of Isomers) (CAS 6762-45-4)
- Teneligliptin Impurity 25 (CAS CATO-C4X-176025)
- (8-chloro-3-hydroxy-1-naphthyl)boronic acid (CAS 2757096-52-7)
- 3-Sulfinobenzoic acid (CAS 15451-00-0)
- 2-(4-Bromophenyl)-5-methylpyrimidine (CAS 174720-38-8)
- (7-(1H-Imidazol-1-yl)-5,6-dihydronaphthalen-2-yl)methanol (CAS 89781-89-5)
- C-Peptide 1 (rat) (CAS 41475-27-8)
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