4-nitro-1,2,5-oxadiazole-3-carbonitrile CAS 159014-14-9
| CAS No. | 159014-14-9 |
| Molecular Formula | C3N4O3 |
| Molecular Weight | 140.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 4-nitro-1,2,5-oxadiazole-3-carbonitrile (C3N4O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
4-nitro-1,2,5-oxadiazole-3-carbonitrile (CAS 159014-14-9) is a high-purity analytical reference standard with the molecular formula C3N4O3 and a molecular weight of 140.06 g/mol.
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 | C3N4O3 |
| Molecular Weight | 140.06 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 4 |
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Recommended Standards
- 1-Bromobutane-4,4,4-d3 (CAS 55724-42-0)
- (2E)-4,4,4-Trifluoro-2-butenoic acid (CAS 406-94-0)
- 1-Bromo-2-methylpropane-3,3,3-d3 (CAS 344299-42-9)
- 4,4,4-Trifluoro-3-oxobutanal (CAS 70817-53-7)
- 1-(2,4-Dimethoxyphenyl)piperazine (CAS 16015-75-1)
- (S)-2-amino-N-(2-amino-2-oxoethyl)-3-methylbutanamide hydrochloride (CAS 36920-56-6)
- Novaluron (CAS 116714-46-6)
- N-(5-Methyl-1,3,4-thiadiazol-2-yl)butyramide (CAS 62347-17-5)
- (S)-3-(Difluoromethyl)tetrahydrofuran-3-ol (CAS 2381841-30-9)
- KPT185 (CAS 1333151-73-7)
- 4-Hydroxybenzamide (CAS 619-57-8)
- 3-(pyridine-4-carbonyl)-4H,5H,6H-cyclopenta[b]thiophen-2-amine (CAS 1803593-69-2)
- N-[3-(4-Amino-2-methylphenoxy)propyl]-N,N-dimethylamine (CAS 946663-43-0)
- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
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