3-Hydroxy-5-methoxyphenylboronic acid CAS 1318165-81-9
| CAS No. | 1318165-81-9 |
| Molecular Formula | C7H9BO4 |
| Molecular Weight | 167.95 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 3-Hydroxy-5-methoxyphenylboronic acid (CAS 1318165-81-9), a certified reference material (molecular formula C7H9BO4, MW 167.95 g/mol) for analytical method development and quality control.
3-Hydroxy-5-methoxyphenylboronic acid (C7H9BO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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).
As a certified reference material (CRM), 3-Hydroxy-5-methoxyphenylboronic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H9BO4 |
| Molecular Weight | 167.95 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
Related Hydroxy Standards
- (2-Hydroxy-4-methoxyphenyl)boronic acid (CAS 1068155-43-0)
- (5-Hydroxy-2-methoxyphenyl)boronic acid (CAS 1072952-43-2)
- (4-Hydroxy-3-methoxyphenyl)boronic acid (CAS 182344-21-4)
- (2-Hydroxy-3-methoxyphenyl)boronic acid (CAS 259209-17-1)
- (2-Hydroxy-6-methoxyphenyl)boronic acid (CAS 98546-52-2)
- (3-Hydroxy-4-methoxyphenyl)boronic acid (CAS 622864-48-6)
- (4-Hydroxy-2-methoxyphenyl)boronic acid (CAS 550373-98-3)
- 2-Hydroxy-5-methoxyphenylboronic acid (CAS 259209-16-0)
Recommended Standards
- 3-Bromopyruvate-1-<SUP>13</SUP>C (CAS 1173018-50-2)
- 4-Fluoro-3-formylphenylboronic Acid (CAS 374538-01-9)
- 4-Fluoro-2-formylbenzeneboronic acid (CAS 825644-26-6)
- 3-Fluoro-4-formylphenylboronic Acid (contains varying amounts of Anhydride) (CAS 248270-25-9)
- N-(2-Ethoxy-3,4-dimethylbenzyl)butan-1-amine (CAS 1427024-91-6)
- (2-(5-(Dimethylamino)-4,4-dimethyl-4H-imidazol-2-yl)phenyl)methanol (CAS 65241-55-6)
- 3-(p-Tolyl)-2,5-dihydrofuran (CAS 859444-21-6)
- 2-Methyl-6-(tributylstannyl)pyridine (CAS 259807-95-9)
- 4-(1H-Pyrazol-1-yl)dihydrofuran-3(2H)-one (CAS 2138420-08-1)
- N4-(Benzo[d][1,3]dioxol-5-yl)-N2-butyl-L-asparagine (CAS 1048005-00-0)
- 4-Methoxy-n-(propan-2-yl)aniline (CAS 16495-67-3)
- (R)-4-Benzyl-3-(2-(3'-(trifluoromethyl)-[1,1'-biphenyl]-4-yl)acetyl)oxazolidin-2-one (CAS 1956435-84-9)
- 4-(4-Methoxyphenyl)thiophene-2-carboxylic acid (CAS 82437-74-9)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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