Tenofovir alafenamide Impurity 16 Free base CAS CATO-C4X-179769
| CAS No. | CATO-C4X-179769 |
| Molecular Formula | C19H25N6O5P |
| Molecular Weight | 448.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tenofovir alafenamide Impurity 16 Free base (CAS CATO-C4X-179769) is a certified pharmaceutical impurity reference standard with the molecular formula C19H25N6O5P and a molecular weight of 448.41 g/mol.
The molecular framework of Tenofovir alafenamide Impurity 16 Free base (C19H25N6O5P) is characterized by a flavonoid core, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures Tenofovir alafenamide Impurity 16 Free base under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H25N6O5P |
| Molecular Weight | 448.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
Related Tenofovir Standards
- Tenofovir alafenamide impurity 73 (CAS CATO-C4X-179773)
- Tenofovir alafenamide Impurity 95 (CAS CATO-C4X-179795)
- Tenofovir disoproxil Impurity 113 (CAS CATO-C4X-1076113)
- Tenofovir Diphosphate (CAS 166403-66-3)
- Tenofovir disoproxil Impurity 137 (CAS CATO-C4X-1076137)
- Tenofovir Alafenamide Impurity 1 (CAS 342631-41-8)
- Tenofovir disoproxil Impurity 54 (CAS 1878175-76-8)
- Tenofovir Alafenamide Impurity 50 (CAS 1878175-77-9)
Recommended Standards
- Bendamustine Impurity 31 (CAS CATO-C4X-127131)
- Bendamustine Impurity 18 (CAS CATO-C4X-127118)
- tert-Butyl ((1S,2S)-2-((2,6-dimethoxyphenyl)selanyl)-2,3-dihydro-1H-inden-1-yl)carbamate (CAS 2088566-91-8)
- 4-Methoxyphenyl 4-O-(b-D-galactopyranosyl)-β-D-glucopyranoside (CAS 150412-80-9)
- Rabeprazole EP Impurity G (CAS 102804-82-0)
- Fudosteine Impurity 16 HCl (CAS CATO-C4X-144716)
- Ganciclovir Impurity 31 (CAS CATO-C4X-102131)
- 1-(2,2-Diethylpyrrolidin-1-yl)ethanone (CAS 125573-94-6)
- ethyl 5-(4-fluorophenyl)-1,3,4-oxadiaZole-2-carboxylate (CAS 950259-82-2)
- (1-Phenylethyl)hydrazine hydrochloride (CAS 29248-55-3)
- (S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2-cyanophenyl)butanoic acid (CAS 270065-84-4)
- Methyl (5-hydroxy-2-methyl-1H-pyrrol-3-yl)carbamate (CAS 861384-61-4)
- 3-Bromo-5-methyl-1H-pyrazolo[4,3-b]pyridine (CAS 52090-78-5)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
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