4-Bromo-1-naphthoic Acid CAS 16650-55-8
| CAS No. | 16650-55-8 |
| Molecular Formula | C11H7BrO2 |
| Molecular Weight | 251.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
4-Bromo-1-naphthoic Acid (CAS 16650-55-8), molecular formula C11H7BrO2 and molecular weight 251.08 g/mol, is a CATO reference standard with documented purity and traceability.
4-Bromo-1-naphthoic Acid (C11H7BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO manufactures 4-Bromo-1-naphthoic Acid 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 | C11H7BrO2 |
| Molecular Weight | 251.08 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-Bromo-2-naphthoic Acid (CAS 1013-80-5)
- 5-Bromo-2-naphthoic Acid (CAS 1013-83-8)
- 2-Bromo-3-(pyridin-2-yloxy)pyridine (CAS 1065484-62-9)
- 5-Bromo-2h-[1,2'-bipyridin]-2-one (CAS 109822-11-9)
- 4-Bromo-2-(1h-imidazol-1-yl)benzaldehyde (CAS 1099630-02-0)
- 4-Bromo-2-(1h-pyrazol-1-yl)benzaldehyde (CAS 1152645-08-3)
- (4-Bromo-1H-pyrazol-1-yl)(phenyl)methanone (CAS 116228-39-8)
- 4-(4-Bromo-1H-pyrazol-1-yl)benzaldehyde (CAS 1174064-63-1)
Recommended Standards
- 6-Bromo-2-methyl-3-oxoisoindoline-1-carbonitrile (CAS 1644602-70-9)
- 3-Bromo-1-naphthalenecarboxylic Acid (CAS 16726-66-2)
- (4-Bromopyridin-2-yl)-pyrazin-2-yl-amine (CAS 1636895-40-3)
- 5-Bromonaphthalene-1-carboxylic acid, 97% (CAS 16726-67-3)
- 1-(2-(Dimethylamino)ethyl)-1H-pyrrole-2-carbonitrile (CAS 500024-71-5)
- (4-Bromo-3,5-diethoxyphenyl)methanol (CAS 363166-42-1)
- 6-Bromo-2,4-pteridinediamine (CAS 16760-61-5)
- 4-Acetyl-2-methylbenzoic acid (CAS 55860-35-0)
- 4,6-Dimethyl-5-nitropyrimidin-2-ol (CAS 1080650-02-7)
- 6-Chloro-3-iodo-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1638768-21-4)
- 4-Chloro-2-(trifluoromethyl)phenylboronic Acid (CAS 313545-41-4)
- 2-Benzyloctahydropyrrolo[3,4-c]pyrrole hydrochloride (CAS 1166820-41-2)
- 4-Octyloxy-3-trifluoromethylbenzoic acid (CAS 1005407-63-5)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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