3-Bromo-2,4-dimethylbenzaldehyde CAS 693285-59-5
| CAS No. | 693285-59-5 |
| Molecular Formula | C9H9BrO |
| Molecular Weight | 213.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Bromo-2,4-dimethylbenzaldehyde is closely related to a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Bromo-2,4-dimethylbenzaldehyde (CAS 693285-59-5), molecular formula C9H9BrO and molecular weight 213.07 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Bromo-2,4-dimethylbenzaldehyde (C9H9BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 213.07 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H9BrO |
| Molecular Weight | 213.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
Related Bromo Standards
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- 3-bromo-1,5,6,7-tetrahydro-1,8-naphthyridine (CAS 1023813-80-0)
- 1-(2-Bromo-4-methylphenyl)ethanone (CAS 103286-27-7)
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Recommended Standards
- 3-Bromo-1-phenylpropan-1-one (CAS 29636-75-7)
- 3-Bromo-2,5-dimethylbenzaldehyde (CAS 247575-33-3)
- 3-Allyl-6-bromopyridin-2-amine (CAS 2243629-03-8)
- 3'-Bromo-4',6'-dihydrospiro[cyclopropane-1,5'-pyrrolo[1,2-b]pyrazole] (CAS 2571593-69-4)
- 1,3 Bis(4-methacryloxybutyl)tetramethyldisiloxane (CAS 70877-11-1)
- 1-Cyclobutyl-N-(cyclopropylmethyl)methanamine hydrochloride (CAS 1803572-40-8)
- (2E,4E)-3-Methyl-5-(4-hydroxy-2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadienenitrile (CAS 178938-94-8)
- 2,4-Diamino-6-chloropyrimidine-5-carbaldehyde (CAS 18740-20-0)
- Fmoc-D-Glu-OtBu (CAS 109745-15-5)
- Leuprorelin EP Impurity A TFA (CAS 62621-13-0)
- 2-Aminodibenzo[b,f][1,4]oxazepin-11(10h)-one (CAS 23474-66-0)
- Methyl (2S,4S)-4-(4-chloro-2-nitrophenoxy)-2-pyrrolidinecarboxylate hydrochloride (CAS 1354487-42-5)
- N,N-dimethylazepan-4-amine dihydrochloride (CAS 1242240-28-3)
- Peptide 433 (CAS CATO-CPTD788433)
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