(5-Nitropyridin-3-yl)boronic acid CAS 1988692-77-8
| CAS No. | 1988692-77-8 |
| Molecular Formula | C5H5BN2O4 |
| Molecular Weight | 167.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (5-Nitropyridin-3-yl)boronic acid is closely related to a carbohydrate-derived structure, an amide group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(5-Nitropyridin-3-yl)boronic acid (CAS 1988692-77-8) is a high-purity analytical reference standard with the molecular formula C5H5BN2O4 and a molecular weight of 167.92 g/mol.
(5-Nitropyridin-3-yl)boronic acid (C5H5BN2O4) contains a carbohydrate-derived structure, an amide group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C5H5BN2O4 |
| Molecular Weight | 167.92 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 methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
Related Nitropyridin Standards
- (5-Nitropyridin-2-yl)boronic acid (CAS 1072946-12-3)
- (6-nitropyridin-3-yl)boronic acid (CAS 1236354-21-4)
- (3-Nitropyridin-4-yl)boronic acid (CAS 1523440-63-2)
- (3-Nitropyridin-2-yl)boronic acid (CAS 851199-84-3)
- 2-(5-Nitropyridin-2-yl)ethan-1-ol (CAS 1260740-65-5)
- 1-(3-Nitropyridin-4-yl)ethanol (CAS 161871-64-3)
- (4-Methyl-3-nitropyridin-2-yl)methanol (CAS 21203-57-6)
- (4-Methyl-5-nitropyridin-2-yl)methanol (CAS 21203-60-1)
Recommended Standards
- 5-Fluoro-2-formylphenylboronic Acid (CAS 1256355-30-2)
- 2-Carboxypyrimidine-5-boronic acid (CAS 1814939-13-3)
- 4-Fluorobenzo[c][1,2]oxaborole-1,5(3H)-diol (CAS 1319803-99-0)
- 7-Fluorobenzo[c][1,2]oxaborole-1,5(3H)-diol (CAS 1319804-00-6)
- tert-Butyl N-[(4S)-3,3-dimethyl-4-piperidyl]carbamate (CAS 473838-73-2)
- Ethyl ((1-(4-ethoxyphenyl)-5-oxopyrrolidin-3-yl)methyl)carbamate (CAS 955242-98-5)
- N-Benzyl-2-fluoroprop-2-en-1-amine (CAS 606926-63-0)
- Methyl 5-chloro-2-methoxy-3-methylbenzoate (CAS 16220-96-5)
- N-BENZYL-3-PYRIDINEMETHYLAMINE (CAS 63361-56-8)
- 7-(3-Chloropropoxy)isoquinolin-1(2H)-one (CAS 913614-03-6)
- 3-Hydroxy-1,4-dihydroquinoxaline-2-carbaldehyde (CAS 855874-32-7)
- Loxoprofen Impurity 11 (CAS 81762-92-7)
- 3-Fluoro-N1-phenylbenzene-1,2-diamine (CAS 894076-19-8)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
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