Oseltamivir Intermediate 8 CAS 204254-96-6
| CAS No. | 204254-96-6 |
| Molecular Formula | C14H22O4 |
| Molecular Weight | 254.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Oseltamivir Intermediate 8 (CAS 204254-96-6), a certified reference material (molecular formula C14H22O4, MW 254.32 g/mol) for analytical method development and quality control.
Oseltamivir Intermediate 8 (C14H22O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C14H22O4 |
| Molecular Weight | 254.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
Related Oseltamivir Standards
- Oseltamivir Impurity C62 (CAS 1217834-81-5)
- Oseltamivir Impurity 145 (CAS 2714884-77-0)
- Oseltamivir Impurity 220 (CAS CATO-C4X-1720220)
- Oseltamivir Impurity 239 (CAS CATO-C4X-1720239)
- Oseltamivir Impurity 61 (CAS 2413185-89-2)
- Oseltamivir Impurity 63 (CAS 1266663-89-1)
- Oseltamivir Impurity 64 (CAS 2413185-88-1)
- Oseltamivir Impurity 164 (CAS 204255-02-7)
Recommended Standards
- Ebastine Impurity 22 (CAS CATO-C4X-202922)
- Benvitimod Impurity 2 (CAS 1622988-14-0)
- Felbinac impurity 4 (CAS 1286423-88-8)
- Tapinarof (CAS 79338-84-4)
- 6-Bromo-2-(4-iodophenyl)quinoline-4-carboxylic acid (CAS 364383-14-2)
- Methyl 5-fluoro-6-methylpicolinate (CAS 1245647-61-3)
- 2,3-Dihydroxy-6,7-dimethylquinoxaline, 97% (CAS 2474-50-2)
- methylenecyclohexane (CAS 1192-37-6)
- 1-(1h-Pyrrol-2-yl)ethan-1-amine (CAS 887411-24-7)
- 2-[5-(methylamino)-1,3,4-thiadiazol-2-yl]acetic acid (CAS 1461713-54-1)
- (((S)-1-Carboxy-5-((S)-3-(naphthalen-2-yl)-2-((1r,4S)-4-((2-(4,7,10-tris(carboxymethyl)-1,4,7,10-tetraazacyclododecan-1-yl)acetamido)methyl)cyclohexane-1-carboxamido)propanamido)pentyl)carbamoyl)-L-glutamic acid (CAS 1702967-37-0)
- CAS 84458-87-7 (CAS 84458-87-7)
- (1S,4S)-2-oxa-5-azabicyclo[2.2.2]octane;hydrochloride (CAS 2306249-59-0)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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