1-(1,2-Dibromoethyl)naphthalene CAS 31838-47-8
| CAS No. | 31838-47-8 |
| Molecular Formula | C12H10Br2 |
| Molecular Weight | 314.02 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.
CATO supplies 1-(1,2-Dibromoethyl)naphthalene (CAS 31838-47-8), a certified reference material (molecular formula C12H10Br2, MW 314.02 g/mol) for analytical method development and quality control.
1-(1,2-Dibromoethyl)naphthalene (C12H10Br2) contains bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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).
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 | C12H10Br2 |
| Molecular Weight | 314.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Br-containing |
Related Dibromoethyl Standards
Recommended Standards
- 3-(Difluoromethoxy)-4-iodobenzoic acid (CAS 1695687-68-3)
- 1,2-Bis(bromomethyl)naphthalene (CAS 59882-98-3)
- 4-(Difluoromethoxy)-3-iodobenzoic acid (CAS 1131588-14-1)
- 1,4-Bis(bromomethyl)naphthalene (CAS 58791-49-4)
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- 2-(4-Amino-5-(3,5-dichlorophenyl)-1H-pyrazol-1-yl)ethanol (CAS 1707375-30-1)
- 7-Thiomorpholino-3-(2-(thiophen-2-yl)ethyl)pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione (CAS 1396857-87-6)
- 1-Bromo-4-(1,1-difluoropropyl)benzene (CAS 162783-79-1)
- 3,5-Dichloro-4-(pyridin-3-ylmethoxy)benzaldehyde (CAS 944892-63-1)
- (2,3-Difluoro-6-methylphenyl)methanamine (CAS 1427395-89-8)
- Semaglutide impurity 98 (CAS CATO-C4X-222698)
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