71295-21-1 5-Bromo-2,3-dimethoxybenzaldehyde DTXSID60314014 CAS 71295-21-1
| CAS No. | 71295-21-1 |
| Molecular Formula | C9H15BrO3 |
| Molecular Weight | 251.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 71295-21-1 5-Bromo-2,3-dimethoxybenzaldehyde DTXSID60314014 (CAS 71295-21-1), a certified reference material (molecular formula C9H15BrO3, MW 251.12 g/mol) for analytical method development and quality control.
Structurally, 71295-21-1 5-Bromo-2,3-dimethoxybenzaldehyde DTXSID60314014 (C9H15BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 251.12 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C9H15BrO3 |
| Molecular Weight | 251.12 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Br-containing |
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Recommended Standards
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- 1335AC 2-(Bromomethyl)-6-methoxynaphthalene 73022-40-9 C12H11BrO (CAS 73022-40-9)
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- Methyl 2-(2,6-dichlorophenyl)sulfanylacetate (CAS 1097167-77-5)
- 3-(2,6-Dichlorobenzyl)-2-methyl-1-(2-methyl-2-((3-(trifluoromethyl)benzyl)thio)propyl)pyridin-4(1H)-one (CAS 341967-47-3)
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- 1-{5-methyl-1-[3-(trifluoromethyl)phenyl]-1H-pyrazol-4-yl}ethanamine (CAS 1014019-33-0)
- 2-[Chloro(difluoro)methoxy]-4-fluoro-1-methyl-benzene (CAS 1404194-89-3)
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Why CATO?
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