2-Hydroxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid CAS 741698-75-9
| CAS No. | 741698-75-9 |
| Molecular Formula | C13H17BO5 |
| Molecular Weight | 264.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Hydroxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid (CAS 741698-75-9) is a high-purity analytical reference standard with the molecular formula C13H17BO5 and a molecular weight of 264.08 g/mol.
Structurally, 2-Hydroxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid (C13H17BO5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 264.08 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).
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.
Physical & Chemical Properties
| Molecular Formula | C13H17BO5 |
| Molecular Weight | 264.08 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
Related Hydroxy Standards
- 2-Hydroxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid (CAS 1009303-78-9)
- 4-Hydroxy-4,4-diphosphonobutanoic acid (CAS 70794-95-5)
- 4-Hydroxy-2-iodobenzoic acid (CAS 116631-87-9)
- 1-Hydroxy-1,2-benziodoxol-3(1H)-one (CAS 131-62-4)
- 2-Hydroxy-3-iodobenzoic Acid (CAS 520-79-6)
- 2-Hydroxy-6-iodobenzoic acid (CAS 89677-81-6)
- 3-Hydroxy-2-iodobenzoic acid (CAS 75821-44-2)
- 3-Hydroxy-5-iodobenzoic acid (CAS 50765-21-4)
Recommended Standards
- 2-[3-(4-bromophenyl)-1,2,4-oxadiazol-5-yl]acetonitrile (CAS 937629-16-8)
- 5,7-dichloro-2-(trifluoromethyl)-3H-imidazo[4,5-b]pyridine (CAS 2089311-29-3)
- 2-(6-Bromo-4-oxo-3,4-dihydroquinazolin-2-yl)acetonitrile (CAS 179912-34-6)
- 5-Amino-3-(4-bromophenyl)-1,2-oxazole-4-carbonitrile (CAS 866154-02-1)
- 1-(4-Chloro-1H-indol-3-yl)-N,N-dimethylmethanamine (CAS 40247-57-2)
- 6-((1-Ethylcyclobutyl)methoxy)pyridin-3-amine (CAS 1427022-45-4)
- 3-(Hydroxymethyl)-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 148012-90-2)
- N4-(4-(4-ethylpiperazin-1-yl)phenyl)-N6-methylpyrimidine-4,6-diamine (CAS 872511-35-8)
- 3,7-Dimethylbenzofuran-2(3H)-one (CAS 173419-94-8)
- Roxadustat Impurity 77 (CAS CATO-C4X-221377)
- 6-oxo-6-(piperidin-1-yl)hexanal (CAS CATO-C3D-263115)
- BAL30072 Impurity 3 (CAS 68363-44-0)
- Tert-butyl 1,2,6-triazaspiro[2.5]oct-1-ene-6-carboxylate (CAS 1620483-21-7)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
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