(3,5-Dibromo-2,6-dimethoxyphenyl)boronic acid CAS 2121512-46-5
| CAS No. | 2121512-46-5 |
| Molecular Formula | C8H9BBr2O4 |
| Molecular Weight | 339.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3,5-Dibromo-2,6-dimethoxyphenyl)boronic acid (CAS 2121512-46-5), molecular formula C8H9BBr2O4 and molecular weight 339.77 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, (3,5-Dibromo-2,6-dimethoxyphenyl)boronic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 339.77 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C8H9BBr2O4 |
| Molecular Weight | 339.77 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 2,6-Dibromo-3,5-dimethoxybenzoic acid (CAS 124480-97-3)
- 2-(4,5-Dibromo-2-methoxyphenoxy)acetic acid (CAS 446278-49-5)
- 3,5-Dibromo-2,4-dimethoxybenzoic acid (CAS 35036-55-6)
- 3,5-Dibromo-2,6-dimethoxybenzoic acid (CAS 73219-90-6)
- 3,7-Dibromo-5H-cyclopenta[2,1-b:3,4-b']dipyridin-5-one (CAS 77213-41-3)
- Methyl 3,5-dibromo-2,4-dihydroxy-6-methylbenzoate (CAS 715-33-3)
- ethyl 2,3-dibromo-4-fluoro-6-methylbenzoate (CAS 1803565-75-4)
- Ethyl 3,5-dibromo-4-fluorophenylacetate (CAS 1803716-86-0)
Recommended Standards
- ((3aR,4R,6R,6aR)-6-(4-Chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2,2,3a-trimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methanol (CAS 2278357-65-4)
- 3-((4-Chlorophenyl)carbamoyl)naphthalen-2-yl acetate (CAS 84100-15-2)
- α-Chloro Imazamox (CAS 1797116-63-2)
- 3-Chloroacetoxy-2-naphthoicacidanilide (CAS 84522-14-5)
- SNS 032 (CAS 345627-80-7)
- 4-(1-Benzylpyrrolidin-3-yl)morpholine (CAS 1245646-52-9)
- 5-Deoxy-L-ribose phenylhydrazone (CAS 123168-30-9)
- 3-Isopropyl-6-methoxy-5-methylpyrazin-2-amine (CAS 93034-75-4)
- Propane-1,1,1-d3 (gas) (CAS 2875-97-0)
- 4-(Thietan-3-yloxy)benzoic acid (CAS 359447-76-0)
- 4,6-Dibromo-1H-indazole-3-carboxaldehyde (CAS 885518-57-0)
- (1R,2R)-2-amino-5,5-difluorocyclohexan-1-ol (CAS 1646337-28-1)
- (3,5-Bis(trifluoromethyl)phenyl)chlorodimethylsilane (CAS 732306-23-9)
- Acetyl-Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 2022956-56-3)
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