Baloxavir Impurity 37 CAS CATO-C4X-210837
| CAS No. | CATO-C4X-210837 |
| Molecular Formula | C31H25F2N3O4S |
| Molecular Weight | 573.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Baloxavir Impurity 37 (CAS CATO-C4X-210837) is a certified pharmaceutical impurity reference standard with the molecular formula C31H25F2N3O4S and a molecular weight of 573.61 g/mol.
Based on its molecular formula C31H25F2N3O4S, Baloxavir Impurity 37 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 573.61 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).
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 | C31H25F2N3O4S |
| Molecular Weight | 573.61 g/mol |
| Purity | ≥95% |
| 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Baloxavir Standards
- Baloxavir Impurity 114 (CAS CATO-C4X-2108114)
- Baloxavir Impurity 36 (CAS CATO-C4X-210836)
- Baloxavir Impurity 39 (CAS 2448416-75-7)
- Baloxavir Impurity 72 (CAS 1985606-53-8)
- Baloxavir Marboxil Impurity 231 (CAS CATO-C4X-2108231)
- Baloxavir Impurity 8 (CAS CATO-C4X-21088)
- Baloxavir Impurity 10 (CAS 3047100-07-9)
- Baloxavir Impurity 11 (CAS 3047100-03-5)
Recommended Standards
- Cefpodoxime Proxetil Impurity 9 (CAS CATO-C4X-15799)
- (R)-BHPphos (CAS 1360145-10-3)
- Cefpodoxime Impurity 50 (CAS CATO-C4X-157950)
- (S)-BHPphos (CAS 1435947-11-7)
- Deferasirox Impurity N2 (CAS 524746-12-1)
- Capivasertib Impurity 21 (CAS CATO-C4X-331221)
- Pyridoxine /Vitamin B6 Impurity 59 (CAS CATO-C4X-187759)
- (R)-2-allylpiperidine hydrochloride (CAS 139163-21-6)
- Duloxetine 2-Naphthalenol Impurity (CAS 1346599-09-4)
- Methyl 2-amino-4-(2,5-dichlorophenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carboxylate (CAS 898921-20-5)
- 2-(4-(4-Ethoxyphenyl)-2-methylthiazol-5-yl)acetic acid (CAS 675856-54-9)
- Potassium trifluoro(2-methylbenzyl)borate (CAS 1632070-88-2)
- 3-(1-(tert-Butoxycarbonyl)pyrrolidin-3-yl)-3-((2-oxo-2-phenylethyl)amino)propanoic acid (CAS 924817-70-9)
- (Met(O)2?)-Glucagon (1-29) (human, rat, porcine) (CAS 75217-63-9)
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