Celecoxib Impurity N4 CAS 90829-71-3
| CAS No. | 90829-71-3 |
| Molecular Formula | C6H7N3O2S |
| Molecular Weight | 185.20 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.
Celecoxib Impurity N4 (CAS 90829-71-3) is a certified pharmaceutical impurity reference standard with the molecular formula C6H7N3O2S and a molecular weight of 185.20 g/mol.
Based on its molecular formula C6H7N3O2S, Celecoxib Impurity N4 contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 185.20 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).
CATO manufactures Celecoxib Impurity N4 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 | C6H7N3O2S |
| Molecular Weight | 185.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Celecoxib Standards
Recommended Standards
- 6,7-Dihydro-4H-pyrano[4,3-d]thiazole-2-carboxylic acid (CAS 740787-78-4)
- ethyl 2-formyl-1,3-thiazole-5-carboxylate (CAS 509083-71-0)
- 5-Fluoro-2-(2-methoxyethoxy)aniline (CAS 946683-70-1)
- Ethyl 2-Formylthiazole-4-carboxylate (CAS 73956-17-9)
- Isavuconazole Impurity 71 (CAS CATO-C4X-123671)
- Allopurinol impurity 28 (CAS CATO-C4X-145828)
- Macitentan Impurity 28 (CAS CATO-C4X-117528)
- (2-Amino-3-fluoropyridin-4-yl)boronic acid hydrochloride (CAS 2096336-63-7)
- (3-(Furan-2-yl)isoxazol-5-yl)methanamine (CAS 27473-54-7)
- DUT-8(Cu) (CAS 916314-54-0)
- 3-(Piperidine-1-carbonyl)aniline (CAS 77201-13-9)
- (R)-5-(Trifluoromethyl)-2,3-dihydrobenzofuran-3-amine hydrochloride (CAS 1384268-86-3)
- 5-(1-Aminopropyl)-N-ethyl-N,6-dimethylpyridin-2-amine (CAS 1355201-26-1)
- Pancreatic Polypeptide (bovine) (CAS 179986-89-1)
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