(5-Ethoxy-2,4-difluorophenyl)boronic acid CAS 900175-12-4
| CAS No. | 900175-12-4 |
| Molecular Formula | C8H9BF2O3 |
| Molecular Weight | 201.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, (5-Ethoxy-2,4-difluorophenyl)boronic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 201.96 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.
(5-Ethoxy-2,4-difluorophenyl)boronic acid (CAS 900175-12-4) is a high-purity analytical reference standard with the molecular formula C8H9BF2O3 and a molecular weight of 201.96 g/mol.
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 manufactures (5-Ethoxy-2,4-difluorophenyl)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.
Physical & Chemical Properties
| Molecular Formula | C8H9BF2O3 |
| Molecular Weight | 201.96 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| 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.) | 1987 |
| Halogen Content | F-containing |
Related Ethoxy Standards
- (6-Ethoxy-2,3-difluorophenyl)boronic acid (CAS 1309980-95-7)
- (4-Ethoxy-2,6-difluorophenyl)boronic acid (CAS 1310403-94-1)
- (4-Ethoxy-2,5-difluorophenyl)boronic acid (CAS 1452575-83-5)
- (2-Ethoxy-4,5-difluorophenyl)boronic acid (CAS 870778-87-3)
- 3-Ethoxy-2,4-difluorophenylboronic acid (CAS 2096341-72-7)
- 4-Ethoxy-2,3-difluorophenylboronic Acid (CAS 212386-71-5)
- 4-Ethoxy-3,5-difluorophenylboronic acid (CAS 2096333-93-4)
- 4-Ethoxy-3,5-difluorobenzoic acid (CAS 1017779-19-9)
Recommended Standards
- (4-(Difluoromethoxy)-3-methylphenyl)boronic acid (CAS 958451-72-4)
- [2-(Difluoromethoxy)-3-methylphenyl]boronic acid (CAS 958451-78-0)
- (4-(Difluoromethoxy)-2-methylphenyl)boronic acid (CAS 514206-39-4)
- [2-(Difluoromethoxy)-5-methylphenyl]boronic acid (CAS 958451-75-7)
- 5-bromo-3-iodo-2-methylaniline hydrochloride (CAS 2044927-53-7)
- 5-Cyclopropyl-3-phenyl-1H-pyrazole (CAS 1208127-10-9)
- N,N-dimethyl-6-nitroquinolin-2-amine (CAS 37041-42-2)
- Methyl 5-cyano-2-methyl-6-(4-methylpiperazino)nicotinate (CAS 306979-92-0)
- 3-(2,5-Dimethylphenyl)-2-sulfanyl-3,4-dihydroquinazolin-4-one (CAS 105363-09-5)
- 2-Bromothiazolo[5,4-c]pyridin-4(5H)-one (CAS 1035219-80-7)
- N-(3-methoxyphenyl)-3,4,5,6-tetrahydro-2H-azepin-7-amine (CAS 305341-58-6)
- Resmetirom Impurity 24 (CAS 2987937-25-5)
- 1-Acetyloctahydrocyclopenta[b]pyrrole-2-carbonitrile (CAS 88585-95-9)
- (D-Tyr1,N-Me-Phe3)-Neuropeptide FF (H-4752.0001) (CAS 145274-93-7)
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