2-(5-Bromo-2,4-dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 2121512-99-8
| CAS No. | 2121512-99-8 |
| Molecular Formula | C14H20BBrO4 |
| Molecular Weight | 343.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 343.02 g/mol gives 2-(5-Bromo-2,4-dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(5-Bromo-2,4-dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2121512-99-8), molecular formula C14H20BBrO4 and molecular weight 343.02 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 2-(5-Bromo-2,4-dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 343.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C14H20BBrO4 |
| Molecular Weight | 343.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 2-(4-Bromo-2,5-dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 850080-55-6)
- 4-Bromo-1-pentafluoroethyl-2-trifluoromethyl-benzene (CAS 1208078-63-0)
- 4-Bromo-2-(2,6-dichlorophenyl)-1H-imidazo[4,5-c]pyridine (CAS 1334411-79-8)
- 3-Bromo-6-chloro-2-(4-chlorophenyl)imidazo[1,2-b]pyridazine (CAS 951625-71-1)
- 4-Bromo-2-(4-bromophenoxy)aniline (CAS 873980-35-9)
- 3-Bromo-4-(3,4-dichlorophenoxy)benzonitrile (CAS 1548389-32-7)
- ethyl 2-bromo-2-(2-bromo-5-methyl-1,3-thiazol-4-yl)acetate (CAS 1955548-41-0)
- 2-(3-Bromo-5-fluoro-4-isopropylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2621936-40-9)
Recommended Standards
- 2-(Difluoromethyl)-3-iodo-4-nitropyridine-6-carboxamide (CAS 1805195-75-8)
- 3,5-Dibromo-1-[(2E)-3-phenylprop-2-en-1-yl]-1H-1,2,4-triazole (CAS 1240590-73-1)
- 2-(Difluoromethyl)-6-iodo-4-nitropyridine-3-carboxamide (CAS 1805427-97-7)
- 3,5-Dibromo-1-(2,2-diethoxyethyl)-1H-1,2,4-triazole (CAS 1240580-71-5)
- CAS 286460-83-1 (CAS 286460-83-1)
- 2-{1-[(3-aminophenyl)carbonyl]piperidin-2-yl}ethan-1-ol (CAS 953744-04-2)
- 7-Iodo-3-(1-methylcyclopropyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 1057393-50-6)
- 1-Bromo-2,4-dichloro-3-methoxybenzene (CAS 174913-18-9)
- 2-(Cyclohexyloxy)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1346707-98-9)
- 3'-Chloro-4-(piperidin-1-yl)-5'-(trifluoromethyl)-3,6-dihydro-2H-1,2'-bipyridine (CAS 306977-24-2)
- 6-((Ethoxycarbonyl)amino)hexanoic acid (CAS 4143-15-1)
- (2R,3S)-5-ethoxy-2-(hydroxymethyl)tetrahydrofuran-3-ol (CAS 91784-10-0)
- o-Tolidine dihydrochloride (CAS 612-82-8)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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