(4-(Hydroxymethyl)-2-methylphenyl)boronic acid CAS 166386-66-9
| CAS No. | 166386-66-9 |
| Molecular Formula | C8H11BO3 |
| Molecular Weight | 165.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(4-(Hydroxymethyl)-2-methylphenyl)boronic acid (CAS 166386-66-9), molecular formula C8H11BO3 and molecular weight 165.98 g/mol, is a CATO reference standard with documented purity and traceability.
(4-(Hydroxymethyl)-2-methylphenyl)boronic acid (C8H11BO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C8H11BO3 |
| Molecular Weight | 165.98 g/mol |
| 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2004 |
Related Hydroxymethyl Standards
- (4-(Hydroxymethyl)-3-methylphenyl)boronic acid (CAS 1218790-88-5)
- 3-(Hydroxymethyl)-5-methylphenylboronic Acid (CAS 1451391-46-0)
- (2-(Hydroxymethyl)-4-methylphenyl)boronic acid (CAS 1451391-52-8)
- 3-(Hydroxymethyl)-2-methylphenylboronic acid (CAS 2121514-26-7)
- 5-(Hydroxymethyl)-2-methylphenylboronic Acid (CAS 631909-12-1)
- 4-(Hydroxymethyl)-3-(Trifluoromethyl)pyrazole (CAS 1001020-13-8)
- 4-(Hydroxymethyl)-2-methoxy-1,2-oxaphospholane 2-oxide (CAS 633278-49-6)
- 6-(Hydroxymethyl)furo[2,3-d]pyridazin-7(6H)-one (CAS 18270-75-2)
Recommended Standards
- 3-Ethyl-4-hydroxyphenylboronic Acid (CAS 1641540-51-3)
- 4-Methoxy-3-methylphenylboronic Acid (CAS 175883-62-2)
- (2-Methoxy-6-methylphenyl)boronic acid (CAS 1567218-43-2)
- 2,3-Dichloro-5-fluoropyridine (CAS 185985-40-4)
- 25S-Inokosterone (CAS 19595-18-7)
- Dihydrostreptomycin sulfate - Impurity B (CAS 29047-73-2)
- 6-Fluoro-1-propylquinolin-2(1H)-one (CAS 106372-89-8)
- 3-(Aminomethyl)-4,4,4-trifluorobutan-1-ol (CAS 1330753-66-6)
- 4-(3-Methoxyphenyl)-1,2-dihydro-3h-pyrazol-3-imine (CAS 93690-16-5)
- n-Cyclopropyl-n-(2,4-dimethylthiazole-5-carbonyl)glycine (CAS 1178839-05-8)
- Tri-tert-butyl 2,2',2''-(10-(2-((4-aminobutyl)amino)-2-oxoethyl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl)triacetate (CAS 1402393-59-2)
- 2,8-Dimethyl-2,3,4,4a,5,9b-hexahydro-1H-pyrido[4,3-b]indole hydrochloride (CAS 1216378-71-0)
- (4-Tetrahydropyranyl)hydrazine Dihydrochloride (CAS 1187974-47-5)
- (Leu31,Pro34)-Peptide YY (human) trifluoroacetate salt (CAS 179986-95-9)
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