Imrecoxib Impurity 20 CAS 93514-49-9
| CAS No. | 93514-49-9 |
| Molecular Formula | C9H11BrO3S |
| Molecular Weight | 279.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Imrecoxib Impurity 20 (CAS 93514-49-9), a pharmacopoeial impurity reference standard (molecular formula C9H11BrO3S, MW 279.15 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, Imrecoxib Impurity 20 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 279.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 Imrecoxib Impurity 20 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 | C9H11BrO3S |
| Molecular Weight | 279.15 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Imrecoxib Standards
- Imrecoxib Impurity 54 (CAS CATO-C4X-237954)
- Imrecoxib Impurity 60 (CAS CATO-C4X-237960)
- Imrecoxib Impurity 56 (CAS CATO-C4X-237956)
- Imrecoxib Impurity 61 (CAS CATO-C4X-237961)
- Imrecoxib Impurity 69 (CAS 3323-79-3)
- Imrecoxib Impurity 17 (CAS CATO-C4X-237917)
- Imrecoxib Impurity 70 (CAS CATO-C4X-237970)
- Imrecoxib Impurity 38 (CAS 2268704-43-2)
Recommended Standards
- Propan-2-yl 2-bromobenzene-1-sulfonate (CAS 219945-37-6)
- 2-(4-Bromothiophen-2-yl)-1H-benzo[d]imidazole (CAS 1025843-75-7)
- N-(6-Bromo-2-ethylpyridin-3-yl)methanesulfonamide (CAS 2643340-89-8)
- (2-aminoethyl)[3-(3,4-dichlorophenoxy)-2-hydroxypropyl]amine (CAS 1274001-55-6)
- Peptide Impurity 81 TFA (CAS CATO-CPTD788581)
- Tegoprazan impurity 41 (CAS 19673-09-7)
- Rimegepant Impurity 116 (CAS CATO-C4X-2487116)
- 2-(2,6-Dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)acetic acid (CAS 4628-39-1)
- Linderane (CAS 13476-25-0)
- 2-(3-Chloro-4-methylphenyl)pentan-2-ol (CAS 1378860-30-0)
- 8-Bromoimidazo[1,2-a]pyridin-6-amine hydrochloride (CAS 1373233-09-0)
- Ethyl 3-(difluoromethyl)-1h-pyrazole-5-carboxylate (CAS 936033-53-3)
- 3-(2-Chlorophenyl)-5-methyl-4-(5-((3-(trifluoromethyl)phenoxy)methyl)-1H-1,2,4-triazol-3-yl)isoxazole (CAS 400078-58-2)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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