5-(cyclopropylethynyl)pyridin-3-ylboronic acid CAS 1189372-89-1
| CAS No. | 1189372-89-1 |
| Molecular Formula | C10H16BNO2 |
| Molecular Weight | 193.05 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.
CATO supplies 5-(cyclopropylethynyl)pyridin-3-ylboronic acid (CAS 1189372-89-1), a certified reference material (molecular formula C10H16BNO2, MW 193.05 g/mol) for analytical method development and quality control.
5-(cyclopropylethynyl)pyridin-3-ylboronic acid (C10H16BNO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, 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 | C10H16BNO2 |
| Molecular Weight | 193.05 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- (4-(1-(Dimethylamino)ethyl)phenyl)boronic acid (CAS 1142944-79-3)
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- n-(2-Hydroxyethyl)-3-(2-oxopyridin-1(2h)-yl)propanamide (CAS 1153282-25-7)
- (2-Bromo-6-cyanopyridin-4-yl)boronic acid (CAS 2225181-31-5)
- 1,1,1,6,6,6-Hexamethyl-2,2,3,3,4,4,5,5-octaphenylhexasilane (CAS 89634-96-8)
- 2-Methyl-1H-imidazo[4',5':4,5]thieno[2,3-b]pyridine (CAS 91870-91-6)
- (R)-5-methoxy-1,2,3,4-tetrahydronaphthalen-1-amine (CAS 103882-27-5)
- Tetrahexylammonium benzoate (CAS 16436-29-6)
- Benzyl N-[1-({[(tert-butoxy)carbonyl]amino}methyl)cyclopropyl]carbamate (CAS 1199792-80-7)
- (Pro30,Tyr32,Leu34)-Neuropeptide Y (28-36) (CAS 161650-01-7)
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