Piroxicam EP Impurity G CAS 35511-14-9
| CAS No. | 35511-14-9 |
| Molecular Formula | C10H9NO5 |
| Molecular Weight | 255.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Piroxicam EP Impurity G is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Piroxicam EP Impurity G (CAS 35511-14-9) is a certified pharmaceutical impurity reference standard with the molecular formula C10H9NO5 and a molecular weight of 255.25 g/mol.
Based on its molecular formula C10H9NO5, Piroxicam EP Impurity G contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 255.25 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.
CATO manufactures Piroxicam EP Impurity G 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 | C10H9NO5 |
| Molecular Weight | 255.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 1 |
Related Piroxicam Standards
- Piroxicam impurity 22 (CAS 88741-92-8)
- Piroxicam EP Impurity D (CAS 6639-62-9)
- Piroxicam EP Impurity C (CAS 24683-25-8)
- Piroxicam EP Impurity J (CAS 35511-15-0)
- Piroxicam EP Impurity E (CAS 24683-20-3)
- Piroxicam EP Impurity H (CAS 24683-21-4)
- Piroxicam Impurity 28 (CAS 112391-26-1)
- Piroxicam Impurity 26 (CAS 1942748-12-1)
Recommended Standards
- Nicotinamide Riboside (CAS 1341-23-7)
- Cefoperazone Impurity N7 (CAS 3994-82-9)
- 2-Butanone 2,4-Dinitrophenylhydrazone-d3 (CAS 259824-58-3)
- 2-Butyl-4-(difluoromethyl)-3-methyl-2h-pyrazolo[3,4-b]pyridin-6-ol (CAS 1018163-84-2)
- Serotonin Impurity 10 (CAS CATO-C4X-253410)
- Tamoxifen EP Impurity E HCl (Mixture of Z and E Isomers) (CAS CATO-C4X-123316)
- Ticagrelor impurity 162 HCl (CAS 1643378-54-4)
- 2-Chloro-1-(4-ethylpiperazin-1-yl)ethan-1-one (CAS 546116-23-8)
- 4-Ethylbenzoic acid (CAS 619-64-7)
- Adefovir Dipivoxil Impurity 41 (CAS 107021-27-2)
- 4-(Trifluoromethyl)benzamidine Hydrochloride (CAS 38980-96-0)
- 2-(6-(Diethylamino)benzofuran-2-yl)-3-hydroxy-4H-chromen-4-one (CAS 386736-84-1)
- 3-Bromopyrazolo[1,5-a]pyridine-4-carboxylic acid (CAS 1782194-76-6)
- [3-31]-Semaglutide D (Sodium salt) (CAS CATO-C4X-2226119)
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