7-Chloro-4-nitro-N-(pyridin-2-yl)benzo[c][1,2,5]oxadiazol-5-amine CAS 714246-87-4
| CAS No. | 714246-87-4 |
| Molecular Formula | C11H6ClN5O3 |
| Molecular Weight | 291.65 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.
7-Chloro-4-nitro-N-(pyridin-2-yl)benzo[c][1,2,5]oxadiazol-5-amine (CAS 714246-87-4), molecular formula C11H6ClN5O3 and molecular weight 291.65 g/mol, is a CATO reference standard with documented purity and traceability.
7-Chloro-4-nitro-N-(pyridin-2-yl)benzo[c][1,2,5]oxadiazol-5-amine (C11H6ClN5O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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 | C11H6ClN5O3 |
| Molecular Weight | 291.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
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- Ethyl 5-chloro-3-(trifluoromethyl)-1H-indole-2-carboxylate (CAS 902772-08-1)
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- 2-(2-Chloro-5-fluorophenyl)imidazo[1,2-a]pyrimidine-3-carboxylic acid (CAS 1426521-29-0)
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Recommended Standards
- (2-Chloro-5-fluoropyrimidin-4-yl)-(4-trifluoromethylphenyl)amine (CAS 575473-53-9)
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- (2-Chloro-5-fluoropyrimidin-4-yl)-(3-trifluoromethylphenyl)amine (CAS 575473-62-0)
- N-(2-Chloroethyl)-N-[4-cyano-3-(trifluoromethyl)phenyl]urea (CAS 1987135-73-8)
- 1-Bromo-3-(difluoromethyl)-2-nitrobenzene (CAS 1261679-75-7)
- 2,2,5-Trimethylhexan-1-ol (CAS 40435-42-5)
- 3-Ethynyl-1,5-dimethyl-1H-pyrazole (CAS 85385-96-2)
- Butanenitrile, 3-imino- (CAS 1118-60-1)
- 2-(6-Chloro-[3,3'-bipyridin]-4-yl)acetonitrile (CAS 1227494-38-3)
- Ethyl 2-(4-chlorophenyl)-1H-benzo[d]imidazole-6-carboxylate (CAS 1416344-27-8)
- 3-Chloro-4-(4-methyl-1h-pyrazol-1-yl)aniline (CAS 1006467-53-3)
- Bis(4-isopropylphenyl)amine (CAS 63451-41-2)
- 3-Acetyl-2-(4-fluorophenyl)thiazolidine-4-carboxylic acid (CAS 312714-09-3)
- Angiotensin II Antipeptide (CAS 121379-63-3)
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