2-(5-Methyl-1,2,4-oxadiazol-3-yl)isonicotinic acid CAS 859155-80-9
| CAS No. | 859155-80-9 |
| Molecular Formula | C9H7N3O3 |
| Molecular Weight | 205.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(5-Methyl-1,2,4-oxadiazol-3-yl)isonicotinic acid.
2-(5-Methyl-1,2,4-oxadiazol-3-yl)isonicotinic acid (CAS 859155-80-9) is a high-purity analytical reference standard with the molecular formula C9H7N3O3 and a molecular weight of 205.17 g/mol.
2-(5-Methyl-1,2,4-oxadiazol-3-yl)isonicotinic acid (C9H7N3O3) contains an amino-acid-derived structure, an amide 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. 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.
As a certified reference material (CRM), 2-(5-Methyl-1,2,4-oxadiazol-3-yl)isonicotinic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H7N3O3 |
| Molecular Weight | 205.17 g/mol |
| Appearance | Pale yellow to 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 2-((3-Phenyl-1,2,4-oxadiazol-5-yl)amino)ethanol (CAS 7627-09-0)
- (6-(5-Methyl-1,3,4-oxadiazol-2-yl)pyridin-3-yl)boronic acid (CAS 883231-15-0)
- 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-methylphenol (CAS 475651-47-9)
- 1-(3-Phenyl-1,2,4-oxadiazol-5-yl)urea (CAS 5421-95-4)
- 4-(1,2,4-oxadiazol-3-ylmethoxy)benzaldehyde (CAS 1042775-08-5)
- 2-(5-phenyl-1,3,4-oxadiazol-2-yl)acetic acid (CAS 131467-94-2)
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Recommended Standards
- 2-(4-Methyl-3-nitrophenyl)-1,3,4-oxadiazole (CAS 460722-56-9)
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- 1,5-Difluoro-3-iodo-2-methylbenzene (CAS 1188412-99-8)
- 4-O-Methyl-D-glucuronic acid (CAS 4120-73-4)
- 4-Phenylnicotinic acid (CAS 103863-14-5)
- 5a-Estrane-3b,17a-diol (CAS 93602-55-2)
- 1-Bromo-2-isopropoxy-3-methoxybenzene (CAS 442200-49-9)
- 4-Fluoro-3-(pyrrolidin-1-ylmethyl)phenylboronic acid (CAS 1704063-89-7)
- 6-Methoxy-2-(3-nitrobenzoyl)pyridine (CAS 1187171-37-4)
- 1-(2-Bromo-6-fluorophenyl)-2-methylpropan-1-one (CAS 693285-70-0)
- 2-(4-ethylphenyl)butanedioic Acid (CAS 704205-92-5)
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