4-(Carboxymethyl)phenylboronic acid CAS 90111-58-3
| CAS No. | 90111-58-3 |
| Molecular Formula | C8H9BO4 |
| Molecular Weight | 179.97 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.
4-(Carboxymethyl)phenylboronic acid (CAS 90111-58-3) is a high-purity analytical reference standard with the molecular formula C8H9BO4 and a molecular weight of 179.97 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 4-(Carboxymethyl)phenylboronic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 179.97 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO manufactures 4-(Carboxymethyl)phenylboronic 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 | C8H9BO4 |
| Molecular Weight | 179.97 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
Related Carboxymethyl Standards
- 3-(Carboxymethyl)benzoic Acid (CAS 2084-13-1)
- 3-((Carboxymethyl)thio)-2-hydroxypropanoic acid (CAS 68373-09-1)
- S-Carboxymethyl-L-Cysteine (CAS 186537-58-6)
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- 2-[(carboxymethyl)sulfanyl]-2-methylpropanoic acid (CAS 13330-92-2)
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Recommended Standards
- 3-Ureidophenylboronic acid (CAS 90084-66-5)
- (2-Cyclopropyl-6-fluorophenyl)boronic acid (CAS 1373394-32-1)
- 2-(3-Boronophenyl)acetic acid (CAS 914397-60-7)
- 6-Fluoro-3,3-dimethylbenzo[c][1,2]oxaborol-1(3H)-ol (CAS 1393477-39-8)
- 5-Chloro-N-(2-(3-(pyridin-4-yl)-4,5,6,7-tetrahydro-1H-indazol-1-yl)ethyl)thiophene-2-carboxamide (CAS 1797326-14-7)
- (6)-Carboxyfluorescein diacetate (CAS 124387-19-5)
- 1-(Amino(4-fluorophenyl)methyl)naphthalen-2-ol hydrochloride (CAS 1169968-26-6)
- 3-(1,4-Diazepane-1-carbonyl)aniline (CAS 1153292-59-1)
- 4-[(3-Chlorophenyl)sulfanyl]-5-methoxy-2-phenylpyrimidine (CAS 477872-58-5)
- 3-Iodoquinoline-8-carboxylic acid (CAS 1934445-70-1)
- 3-Methoxyphenyl 2-((3-cyano-4,6-bis(4-methoxyphenyl)pyridin-2-yl)thio)acetate (CAS 332114-83-7)
- Adamantane-d16 (CAS 30470-60-1)
- Methyl 3-chloro-2,4-difluorobenzoate (CAS 948833-74-7)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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