(1-(2-Cyclopropylethyl)-1H-pyrazol-4-yl)boronic acid CAS 1693764-30-5
| CAS No. | 1693764-30-5 |
| Molecular Formula | C8H13BN2O2 |
| Molecular Weight | 180.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (1-(2-Cyclopropylethyl)-1H-pyrazol-4-yl)boronic acid (C8H13BN2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 180.01 g/mol, it falls into the medium-molecular-weight range. 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).
(1-(2-Cyclopropylethyl)-1H-pyrazol-4-yl)boronic acid (CAS 1693764-30-5) is a high-purity analytical reference standard with the molecular formula C8H13BN2O2 and a molecular weight of 180.01 g/mol.
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.
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 | C8H13BN2O2 |
| Molecular Weight | 180.01 g/mol |
| Appearance | 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 2 |
Related Cyclopropylethyl Standards
- n-(1-Cyclopropylethyl)-6-fluoropyridin-2-amine (CAS 1251081-10-3)
- 1-(2-Cyclopropylethyl)-3,5-dimethyl-1h-pyrazol-4-amine (CAS 1487068-76-7)
- n-(1-Cyclopropylethyl)-2-fluoroaniline (CAS 1019533-72-2)
- 1-(2-Cyclopropylethyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 1493760-76-1)
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- n-(1-cYclopropylethyl)-n-methylsulfamide (CAS 1153065-40-7)
- 2-(2-Cyclopropylethyl)cycloheptan-1-ol (CAS 1521974-11-7)
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Recommended Standards
- 2,6-Dichloro-3-fluoroaniline (CAS 1692388-75-2)
- (2-Ethoxy-3-methylphenyl)boronic acid (CAS 1704064-20-9)
- (R)-(2-(1-Methoxyethyl)phenyl)boronic acid (CAS 159752-39-3)
- 4-Propoxyphenylboronic Acid (CAS 186497-67-6)
- 3-((4-Chlorophenyl)thio)-5-(trifluoromethyl)picolinaldehyde (CAS 264924-39-2)
- m-Tolylmethanesulfonyl chloride (CAS 53531-68-3)
- (2-Fluoro-4-((4-oxopiperidin-1-yl)methyl)phenyl)boronic acid (CAS 1704064-22-1)
- 1-Methyl-2-(piperidin-3-yloxy)-1H-benzo[d]imidazole hydrochloride (CAS 1185313-72-7)
- 1-[(4-Benzoyl-1-methyl-1H-pyrrol-2-yl)methyl]-4-(4-nitrophenyl)piperazine (CAS 866149-61-3)
- 5,7-Difluorobenzo[b]thiophene-2-carbaldehyde (CAS 1400702-21-7)
- methyl({[5-methyl-4-(3-nitrophenyl)-1H-imidazol-2-yl]methyl})amine (CAS 1153425-71-8)
- 5-Methylpyridine-2-carboxaldehyde (CAS 4985-92-6)
- 3-[7-(1-methyl-1h-pyrazol-4-yl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]propanoic acid (CAS 1170616-38-2)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
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