1-Phenyl-1H-pyrazole-4-boronic acid CAS 1201643-70-0
| CAS No. | 1201643-70-0 |
| Molecular Formula | C9H9BN2O2 |
| Molecular Weight | 187.99 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.
CATO supplies 1-Phenyl-1H-pyrazole-4-boronic acid (CAS 1201643-70-0), a certified reference material (molecular formula C9H9BN2O2, MW 187.99 g/mol) for analytical method development and quality control.
Structurally, 1-Phenyl-1H-pyrazole-4-boronic acid (C9H9BN2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.5, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 187.99 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 1-Phenyl-1H-pyrazole-4-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 | C9H9BN2O2 |
| Molecular Weight | 187.99 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Recommended Standards
- (4-(1h-Pyrazol-3-yl)phenyl)boronic acid (CAS 1174304-73-4)
- (4-(Furan-2-yl)phenyl)boronic acid (CAS 1221823-57-9)
- 3-(3-Pyrazolyl)phenylboronic Acid (CAS 1100095-25-7)
- (4-(1H-pyrazol-3-yl)phenyl)boronic acid (CAS 1226849-25-7)
- trans-Ethylene-1,2-d2 (gas) (CAS 1517-53-9)
- 2-(Chloromethyl)pyrimidine Hydrochloride (CAS 936643-80-0)
- 4-[(4-Ethylpiperazin-1-yl)methyl]-3-(trifluoromethyl)benzoic acid (CAS 887565-40-4)
- Ethyl (S)-2-amino-3-(4-hydroxy-2,6-dimethoxyphenyl)propanoate (CAS 1241681-37-7)
- Cardanol (Mixture) (CAS 37330-39-5)
- 1-Methyl-3-phenyl-N-[3-(trifluoromethyl)phenyl]-1H-thieno[2,3-c]pyrazole-5-carboxamide (CAS 478066-99-8)
- 6-(1H-pyrazol-1-yl)-N-(4-(trifluoromethoxy)phenyl)nicotinamide (CAS 400078-67-3)
- 1-(4-Cyanophenyl)-N-methylmethanesulfonamide (CAS 191868-23-2)
- Ethyl 3-amino-2,5-dibromoisonicotinate (CAS 52834-10-3)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
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