Indole-4-Boronic Acid CAS 220465-43-0
| CAS No. | 220465-43-0 |
| Molecular Formula | C8H8BNO2 |
| Molecular Weight | 160.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Indole-4-Boronic Acid (CAS 220465-43-0), molecular formula C8H8BNO2 and molecular weight 160.97 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H8BNO2, Indole-4-Boronic Acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 160.97 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C8H8BNO2 |
| Molecular Weight | 160.97 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2019 |
| Nitrogen Atoms | 1 |
Related Indole Standards
- Indole-5-carboxylic acid (CAS 1670-81-1)
- Indole-6-carboxylic acid (CAS 1670-82-2)
- Indole-7-carboxylic acid (CAS 1670-83-3)
- 3H-Indole-2-carboxylic acid (CAS 294636-73-0)
- Indole-2-carboxylic Acid (CAS 1477-50-5)
- 1H-indole-5-ethanol (CAS 281232-81-3)
- 1H-Indole-6-carbaldehyde oxime (CAS 1018038-62-4)
- 1H-Indole-1-carboxamide (CAS 13307-58-9)
Recommended Standards
- 5-Cyano-2-methylphenylboronic Acid (CAS 867333-43-5)
- Indolizin-5-ylboronic acid (CAS 2161345-20-4)
- 3-Cyano-4-methylphenylboronic Acid (CAS 911210-49-6)
- Indolizin-6-ylboronic acid (CAS 2161345-21-5)
- 6-Fluoro-1-(p-tolyl)-1H-benzo[e][1,3,4]thiadiazine-3-carboxylic acid 4,4-dioxide (CAS 1708401-67-5)
- 2-Azido-N-(4-methylphenyl)acetamide (CAS 116433-49-9)
- 2-(4-Methoxy-1-benzofuran-2-yl)-5-methyl-1,3,4-oxadiazole (CAS 310390-90-0)
- 5-Allyl-4,6-dichloropyrimidin-2-amine (CAS 97570-30-4)
- 2-(1-(3-Fluorophenyl)cyclopropyl)acetic acid (CAS 1445893-75-3)
- (2-Chloro-4-cyclopropyl-5-(trifluoromethyl)phenyl)boronic acid (CAS 2225174-39-8)
- 4-Amino-2-(2-(pyridin-2-yl)ethyl)isoindolin-1-one (CAS 900015-00-1)
- N1,N3-di-p-tolylmalonamide (CAS 5469-94-3)
- tert-butyl N-[(3S)-6-(N-hydroxycarbamimidoyl)-2,3-dihydrobenzofuran-3-yl]carbamate (CAS 2364560-70-1)
- Bradykinin-Like Neuropeptide (Aplysia californica) (H-1654.0001) (CAS 165174-60-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com