((3-Hydroxyphenyl)ethynyl)boronic acid CAS 1216665-43-8
| CAS No. | 1216665-43-8 |
| Molecular Formula | C8H7BO3 |
| Molecular Weight | 161.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures ((3-Hydroxyphenyl)ethynyl)boronic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
((3-Hydroxyphenyl)ethynyl)boronic acid (CAS 1216665-43-8), molecular formula C8H7BO3 and molecular weight 161.95 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of ((3-Hydroxyphenyl)ethynyl)boronic acid (C8H7BO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C8H7BO3 |
| Molecular Weight | 161.95 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Hydroxyphenyl Standards
- 3-(3-Hydroxyphenyl)propiolic acid (CAS 10401-10-2)
- 3-(2-Hydroxyphenyl)propiolic acid (CAS 16635-92-0)
- 3-(4-Hydroxyphenyl)propiolic acid (CAS 78589-65-8)
- 2-(4-hydroxyphenyl)-2-(methylamino)acetonitrile (CAS 1039815-62-7)
- 2-(3-Hydroxyphenyl)-2-(methylamino)acetonitrile (CAS 1040056-60-7)
- (E)-4-(2-Hydroxyphenyl)but-3-en-2-one (CAS 22214-28-4)
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- 1-(4-Hydroxyphenyl)-2-methylprop-2-en-1-one (CAS 60644-65-7)
Recommended Standards
- (5-Cyano-3-methylpyridin-2-yl)boronic acid (CAS 1208314-92-4)
- Pyrazolo[1,5-a]pyridin-7-ylboronic acid (CAS 1231934-40-9)
- 1-Hydroxy-1,3-dihydrobenzo[c][1,2]oxaborole-6-carbaldehyde (CAS 1195621-94-3)
- Pyrazolo[1,5-a]pyridine-3-boronic Acid (CAS 1238337-01-3)
- 4-(Chlorosulfonyl)benzenesulfonyl Fluoride (CAS 30672-72-1)
- 3-(8-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-3-hydroxypropanenitrile (CAS 1538190-06-5)
- 2-(Benzo[d]thiazol-2-yl)-N,N-diethylnicotinamide (CAS 873856-45-2)
- 3-(4-Ethyl-2,3-dioxopiperazin-1-yl)propanoic acid (CAS 610311-91-6)
- 2-Amino-3-(4-methoxy-3-(trifluoromethoxy)phenyl)propanoic acid (CAS 1259979-50-4)
- 2-(((2-Amino-5-chlorophenyl)(phenyl)methylene)amino)ethan-1-ol (CAS 2109-45-7)
- 3-Hydroxy-2,5-dimethylbenzonitrile (CAS 90563-55-6)
- Cyclohexyltriphenylphosphonium Bromide (CAS 7333-51-9)
- 5-Bromo-2-oxo-1-(3-(trifluoromethyl)benzyl)-1,2-dihydropyridine-3-carboxylic acid (CAS 338982-36-8)
- Casein Kinase II Receptor Peptide (CAS 198481-81-1)
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