9-(4-Bromophenyl)phenanthrene CAS 853945-49-0
| CAS No. | 853945-49-0 |
| Molecular Formula | C20H13Br |
| Molecular Weight | 333.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H13Br, 9-(4-Bromophenyl)phenanthrene contains bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 333.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
9-(4-Bromophenyl)phenanthrene (CAS 853945-49-0), molecular formula C20H13Br and molecular weight 333.22 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H13Br |
| Molecular Weight | 333.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
Related Bromophenyl Standards
- 4-(4-Bromophenyl)-5-(methylsulfonyl)thiazol-2-amine (CAS 1017782-62-5)
- 4-(4-Bromophenyl)-5-(ethylsulfonyl)-1,2,3-thiadiazole (CAS 1707563-56-1)
- 3-(4-Bromophenyl)-7,7-dimethyl-4,6,7,8-tetrahydrocinnolin-5(1H)-one (CAS 190436-38-5)
- 9-(2-Bromophenyl)phenanthrene (CAS 3582-48-7)
- 9-(3-Bromophenyl)anthracene (CAS 859331-70-7)
- 9-(4-Bromophenyl)anthracene (CAS 24672-71-7)
- 4-(4-bromophenyl)-3-(pyridin-4-yl)-4,5-dihydro-1H-1,2,4-triazole-5-thione (CAS 117080-36-1)
- 4-(4-Bromophenyl)-5-(pyridin-3-yl)-4h-1,2,4-triazole-3-thiol (CAS 127055-61-2)
Recommended Standards
- 9-(Bromo(phenyl)methylene)-9H-fluorene (CAS 33735-95-4)
- 9-Bromo-10-phenylanthracene (CAS 23674-20-6)
- Benzyl 3-bromo5-isopropylbenzoate (CAS 2121514-84-7)
- 5-Bromo-3,6,6-trimethyl-1-phenyl-1,5,6,7-tetrahydro-4H-indazol-4-one (CAS 52100-32-0)
- 1,2-Diethyl (1R,2S)-rel-cyclohex-4-ene-1,2-dicarboxylate (CAS 4841-85-4)
- (1R,2R)-2-(2,5-dimethylphenyl)cyclopropane-1-carboxylic acid (CAS 2227661-18-7)
- 14,14-Dimethyl-2,9-diazatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3(8),4,6-tetraen-12-one (CAS 39222-65-6)
- Ethyl 3-Fluoropyridine-2-carboxylate (CAS 1187732-69-9)
- Tafluprost Impurity 21 (CAS CATO-C4X-216321)
- 2-(((5-(((1,5-Dimethyl-1H-pyrazol-4-yl)methyl)carbamoyl)-1,2,4-oxadiazol-3-yl)methyl)thio)acetic acid (CAS 1170227-40-3)
- Cloransulam-Methyl Impurity 2 (CAS CATO-C4X-31702)
- 2-Chloro-4-(fluoromethyl)thiophen-3-amine hydrochloride (CAS 2732241-98-2)
- (4-Aminobutan-2-yl)(benzyl)methylamine (CAS 1082818-41-4)
- Tau Peptide (273-284) trifluoroacetate salt (CAS 1663490-91-2)
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