4-Chloro-3-methylphenylboronic Acid CAS 161950-10-3
| CAS No. | 161950-10-3 |
| Molecular Formula | C7H8BClO2 |
| Molecular Weight | 170.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chloro-3-methylphenylboronic Acid (CAS 161950-10-3), a certified reference material (molecular formula C7H8BClO2, MW 170.40 g/mol) for analytical method development and quality control.
Structurally, 4-Chloro-3-methylphenylboronic Acid (C7H8BClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 170.40 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H8BClO2 |
| Molecular Weight | 170.40 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-Chloro-4-methylphenylboronic Acid (CAS 145349-62-8)
- 5-Chloro-2-methylbenzeneboronic Acid (CAS 148839-33-2)
- 3-Chloro-4-methylphenylboronic Acid (CAS 175883-63-3)
- 2-Chloro-5-methylphenylboronic Acid (CAS 193353-35-4)
- (2-Chloro-3-methylphenyl)boronic acid (CAS 915070-53-0)
- (2-chloro-6-methylphenyl)boronic acid (CAS 851756-51-9)
- 3-Chloro-2-methylphenylboronic Acid (CAS 313545-20-9)
- 3-Chloro-5-methylphenylboronic Acid (CAS 913836-14-3)
Recommended Standards
- (4-(Chloromethyl)phenyl)boronic acid (CAS 164413-77-8)
- Bis(trimethylsilyl)acetylene (CAS 14630-40-1)
- Divinyltetramethyldisilane (CAS 1450-29-9)
- (2-(Chloromethyl)phenyl)boronic acid (CAS 374551-13-0)
- Ethyl 4-tert-butyl-2-ethoxybenzoate (CAS 1352222-47-9)
- tert-butyl N-[(5-cyano-4-iodo-1H-imidazol-2-yl)methyl]-N-ethyl-carbamate (CAS 2411523-80-1)
- 3-(1-Ethyl-1h-imidazol-2-yl)-4-fluorobenzaldehyde (CAS 1341674-98-3)
- 4-Nitrophenyl 17-Octadecyn-1-yl Carbonate (CAS 2097800-46-7)
- Trifluoroiodomethane (CAS 2314-97-8)
- 1-Benzyl-6-methylpiperidin-3-amine (CAS 1315368-30-9)
- Propan-2-yl 3,5-dibromopyridine-4-carboxylate (CAS 2121512-81-8)
- Dodecanedioic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 1,6-hexanediol (CAS 145556-03-2)
- 2-(8-(Difluoromethyl)naphthalen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2791276-58-7)
- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
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