4-(Benzyloxy)-7-bromo-2-naphthoic acid CAS 591247-94-8
| CAS No. | 591247-94-8 |
| Molecular Formula | C18H13BrO3 |
| Molecular Weight | 357.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(Benzyloxy)-7-bromo-2-naphthoic acid (CAS 591247-94-8), molecular formula C18H13BrO3 and molecular weight 357.20 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-(Benzyloxy)-7-bromo-2-naphthoic acid (C18H13BrO3) is characterized by a steroid core, 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).
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.
Physical & Chemical Properties
| Molecular Formula | C18H13BrO3 |
| Molecular Weight | 357.20 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 sealed and dry |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
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Recommended Standards
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- 3-(4-Bromophenyl)-1-(o-tolyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-67-3)
- 5-(4-Bromophenoxy)-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde (CAS 882228-97-9)
- 2-Butyl-4-hydroxy-8-(trifluoromethyl)quinoline-3-carboxylic acid (CAS 64321-85-3)
- (S)-1-(2-Amino-3-methylbutanoyl)pyrrolidin-3-one (CAS 1354011-85-0)
- (S)-3-Amino-N,N-dimethylpyrrolidine-1-carboxamide (CAS 1568179-08-7)
- benzyl (3R,4R)-4-azido-3-hydroxy-piperidine-1-carboxylate (CAS 1352149-22-4)
- 2-Cyclopropoxy-N1,N4-dimethylterephthalamide (CAS 1243445-19-3)
- 1-(7-Bromo-1H-indol-3-yl)-2-chloroethan-1-one (CAS 1018593-32-2)
- (2-(Triethylsilyl)benzo[b]thiophen-7-yl)boronic acid (CAS 1217501-30-8)
- tert-Butyl (2-amino-4-bromophenyl)(methyl)carbamate (CAS 1187928-31-9)
- 3-Bromo-[1,2,4]triazolo[4,3-b]pyridazine (CAS 87841-08-5)
- Semaglutide impurity 272 (CAS CATO-C4X-2226272)
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