3-Phenyl-1,2,4-oxadiazole-5-carbaldehyde CAS 73217-75-1
| CAS No. | 73217-75-1 |
| Molecular Formula | C9H6N2O2 |
| Molecular Weight | 174.16 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 3-Phenyl-1,2,4-oxadiazole-5-carbaldehyde.
CATO supplies 3-Phenyl-1,2,4-oxadiazole-5-carbaldehyde (CAS 73217-75-1), a certified reference material (molecular formula C9H6N2O2, MW 174.16 g/mol) for analytical method development and quality control.
3-Phenyl-1,2,4-oxadiazole-5-carbaldehyde (C9H6N2O2) 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.
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 | C9H6N2O2 |
| Molecular Weight | 174.16 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 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Related Phenyl Standards
- 5-Phenyl-1,2,4-oxadiazole-3-carbaldehyde (CAS 73217-79-5)
- 5-Phenyl-1,3,4-oxadiazole-2-carbaldehyde (CAS 22816-01-9)
- 3-Phenyl-1,2,4-oxadiazole-5-carbonitrile (CAS 37760-53-5)
- 5-phenyl-1,3,4-oxadiazole-2-carbonitrile (CAS 68496-63-9)
- 5-Phenyl-1,3,4-oxadiazole-2-thiol (CAS 3004-42-0)
- 23152-97-8 3-Phenyl-1,2,4-oxadiazole-5-thiol 7869AD C8H6N2OS (CAS 23152-97-8)
- 5-Methyl-1,3,4-oxadiazole-2-sulfonamide (CAS 98022-45-8)
- 1,2,5-oxadiazole-3,4-dicarboxylic acid (CAS 48113-77-5)
Recommended Standards
- 3-Oxo-3,4-dihydro-2h-1,4-benzoxazine-7-carbonitrile (CAS 943845-21-4)
- 4-(1,2,4-Oxadiazol-3-yl)benzaldehyde (CAS 545424-41-7)
- 3-Nitroisoquinoline (CAS 203988-06-1)
- 4-(1,3,4-Oxadiazol-2-yl)benzaldehyde (CAS 545424-46-2)
- 1-(2-Methyl-3-(trifluoromethyl)phenyl)ethanol (CAS 1488356-50-8)
- Droperidol (CAS 548-73-2)
- N-(6-Chloro-4-(piperidin-1-yl)pyrido[3,2-d]pyrimidin-2-yl)acetamide (CAS 917757-84-7)
- 2-[5-(propan-2-yl)-1,2,4-oxadiazol-3-yl]azepane hydrochloride (CAS 1461713-91-6)
- 2-Azaspiro[3.4]octane oxalate(2:1) (CAS 1523617-94-8)
- (S)-2-Aminobutyramide-d3 Hydrochloride (CAS 1217605-54-3)
- 5-Bromo-2-methyloxazole (CAS 1391740-17-2)
- (2,4-Dimethylthiazol-5-yl)(3-(hydroxymethyl)piperidin-1-yl)methanone (CAS 1153236-26-0)
- 2-chloro-6-ethyl-1H,4H-thieno[2,3-d]pyrimidin-4-one (CAS 1215221-49-0)
- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
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