Bromfenac Impurity 31 CAS 71969-36-3
| CAS No. | 71969-36-3 |
| Molecular Formula | C14H12BrNO |
| Molecular Weight | 290.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Bromfenac Impurity 31 (CAS 71969-36-3), a pharmacopoeial impurity reference standard (molecular formula C14H12BrNO, MW 290.16 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Bromfenac Impurity 31 (C14H12BrNO) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 Bromfenac Impurity 31 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 | C14H12BrNO |
| Molecular Weight | 290.16 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromfenac Standards
- Bromfenac Impurity 13 (CAS CATO-C4X-200213)
- Bromfenac Impurity 72 (CAS 61941-63-7)
- Bromfenac Impurity 52 (CAS CATO-C4X-200252)
- Bromfenac Impurity 53 (CAS 91714-50-0)
- Bromfenac Impurity 62 (CAS CATO-C4X-200262)
- Bromfenac Impurity 71 (CAS CATO-C4X-200271)
- Bromfenac Impurity 28 (CAS 91714-41-9)
- Bromfenac lmpurity 58 (CAS CATO-C4X-200258)
Recommended Standards
- Propofol Impurity 49 (CAS CATO-C4X-147349)
- Perampanel Impurity 53 (CAS 956229-66-6)
- Telmisartan Impurity 21 (CAS 147404-72-6)
- 2-(4-Bromo-2-fluorophenoxy)-N,N-diethylethanamine (CAS 1142944-95-3)
- Atorvastatin Impurity 82 (CAS 125971-96-2)
- Stiripentol Impurity N (CAS 78074-39-2)
- Budesonide Impurity 73 (CAS CATO-C4X-138973)
- 2-(2-chlorophenyl)quinazoline-4-thiol (CAS 18590-76-6)
- 3-Phenyl-3,4-dihydropyrido[3,4-b]pyrazin-2(1H)-one (CAS 43064-15-9)
- 2-Amino-3-(6-chloropyridin-3-yl)propanoic acid (CAS 188916-07-6)
- 4-Hydroxy-7-iodoquinoline-3-carboxylic acid (CAS 22200-49-3)
- 4-Chloro-2-methoxy-5-sulfamoylbenzoic acid (CAS 55524-67-9)
- 1,2-Dibromo-3,5-difluorobenzene (CAS 139215-43-3)
- Tau Peptide (301-315) trifluoroacetate salt (CAS 330456-48-9)
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