4-Borono-2-methylbenzoic acid CAS 191089-06-2
| CAS No. | 191089-06-2 |
| 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-Borono-2-methylbenzoic acid (CAS 191089-06-2) 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-Borono-2-methylbenzoic 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).
As a certified reference material (CRM), 4-Borono-2-methylbenzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 2011 |
Related Borono Standards
- 3-Borono-5-methylbenzoic acid (CAS 1150114-66-1)
- 5-Borono-2-methylbenzoic acid (CAS 1256346-18-5)
- 3-Borono-2-methylbenzoic acid (CAS 1314264-61-3)
- 4-Borono-3-methylbenzoic acid (CAS 158429-66-4)
- 4-Borono-2-pyridinecarboxylic Acid 2-Methyl Ester (CAS 1150114-30-9)
- 5-Borono-2-methylnicotinic acid (CAS 2291165-22-3)
- 5-Borono-2-hydroxybenzoic acid (CAS 1071925-39-7)
- 3-Borono-4-hydroxybenzoic acid (CAS 1272675-36-1)
Recommended Standards
- 3-Amino-5-carbamoylphenylboronic acid (CAS 1801408-17-2)
- (2,3-Dihydro-1H-pyrido[2,3-b][1,4]oxazin-7-yl)boronic acid (CAS 2408430-39-5)
- 4-Acetoxyphenylboronic Acid (CAS 177490-82-3)
- (2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)boronic acid (CAS 499769-89-0)
- 1-(4-(Trifluoromethyl)pyrimidin-2-yl)-1H-pyrazol-4-amine (CAS 1210732-94-7)
- 2-(Ethyl(4-fluorobenzyl)amino)ethanol (CAS 1247457-92-6)
- N-Desmethyl-4-hydroxy Tamoxifen-d5 (1:1 E/Z Mixture) (CAS 1584173-54-5)
- 1,3-Dichloro-2,4,6-trifluoro-5-(trichloromethyl)benzene (CAS 1350637-13-6)
- n-Methyl-6-phenyl-4,5,6,7-tetrahydro-1,3-benzothiazol-2-amine hydrobromide (CAS 1311316-99-0)
- 4,5,6,7-Tetrahydro-1H-benzo[d][1,2,3]triazole-6-carboxylic acid (CAS 33062-47-4)
- 2-[(4-methylphenyl)sulfanyl]propanoic acid (CAS 17431-98-0)
- 1-(Piperidin-4-yl)azetidin-3-ol dihydrochloride (CAS 1537465-19-2)
- 4-[(Difluoromethyl)sulfonyl]aniline (CAS 24906-77-2)
- [5-31]-Semaglutide (CAS CATO-C4X-2226263)
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