2-Bromo-5-methoxynaphthalen-1-ol CAS 71186-94-2
| CAS No. | 71186-94-2 |
| Molecular Formula | C11H9BrO2 |
| Molecular Weight | 253.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 253.09 g/mol gives 2-Bromo-5-methoxynaphthalen-1-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Bromo-5-methoxynaphthalen-1-ol (CAS 71186-94-2) is a high-purity analytical reference standard with the molecular formula C11H9BrO2 and a molecular weight of 253.09 g/mol.
Based on its molecular formula C11H9BrO2, 2-Bromo-5-methoxynaphthalen-1-ol contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 253.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Bromo-5-methoxynaphthalen-1-ol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H9BrO2 |
| Molecular Weight | 253.09 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Br-containing |
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- 2-Bromo-1-(5-methyl-1-benzofuran-2-yl)ethan-1-one (CAS 1178862-94-6)
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- 2-Bromo-1-(2-methylbenzofuran-3-yl)ethanone (CAS 124617-51-2)
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Recommended Standards
- 2-Bromo-4-(tert-butoxy)-4-oxobutanoic acid (CAS 914224-26-3)
- 2-Bromo-6-methoxynaphthalen-1-ol (CAS 857091-19-1)
- 2-Bromo-1-fluoro-4-(methylsulfonyl)benzene (CAS 959961-65-0)
- 2-Bromo-7-methoxynaphthalen-1-ol (CAS 857091-21-5)
- n-(4-Amino-2-methylphenyl)ethane-1-sulfonamide (CAS 926246-39-1)
- 8-Benzyl-4-(3,4,5-trimethoxybenzoyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326811-56-6)
- Methyl 6-amino-5-chloropicolinate (CAS 1256794-05-4)
- 4,5-Bis(trifluoromethyl)benzene-1,2-diamine (CAS 30454-92-3)
- (4-Benzhydrylpiperazin-1-yl)(2-(methylthio)pyridin-3-yl)methanone (CAS 852851-09-3)
- (1R,5S)-3-oxa-9-azabicyclo[3.3.1]Nonan-7-ol (CAS 1638683-43-8)
- 1-(Difluoromethoxy)-3-iodonaphthalene (CAS 1261799-22-7)
- 7-Chloro-3-hydroxyquinolin-2(1H)-one (CAS 185804-38-0)
- Gadoteridol Impurity 10 (CAS CATO-C4X-225710)
- Tirzepatide Impurity 22 X TFA Salt (CAS CATO-C4X-324022)
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