7-Chloro-4-nitro-5-(piperidin-1-yl)benzo[c][1,2,5]oxadiazole CAS 257932-07-3
| CAS No. | 257932-07-3 |
| Molecular Formula | C11H11ClN4O3 |
| Molecular Weight | 282.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
7-Chloro-4-nitro-5-(piperidin-1-yl)benzo[c][1,2,5]oxadiazole (CAS 257932-07-3), molecular formula C11H11ClN4O3 and molecular weight 282.68 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 7-Chloro-4-nitro-5-(piperidin-1-yl)benzo[c][1,2,5]oxadiazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 282.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 7-Chloro-4-nitro-5-(piperidin-1-yl)benzo[c][1,2,5]oxadiazole 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 | C11H11ClN4O3 |
| Molecular Weight | 282.68 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
- 6-[2-(6-chloro-3-pyridyl)ethynyl]-1H-pyrido[2,3-d]pyrimidin-4-one (CAS 2607216-33-9)
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- 6-[2-(2-chloro-4-pyridyl)ethynyl]-1H-pyrido[2,3-d]pyrimidin-4-one (CAS 2585151-47-7)
- Ethyl 3-[(2-chlorophenoxy)methyl]-1,2,4-oxadiazole-5-carboxylate (CAS 261962-50-9)
- 1-Fluoro-2-methyl-4-(prop-2-en-1-yl)benzene (CAS 842124-27-0)
- 3,3-Dimethylbutyric anhydride (CAS 38965-26-3)
- 4-Benzoyl-N'-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrrole-2-carbohydrazide (CAS 338403-56-8)
- 1-(2-Methoxy-5-methylphenyl)cyclopropan-1-ol (CAS 1248265-46-4)
- Xylometazoline EP Impurity A (CAS 81201-80-1)
- 5-Iodo-4-methylpyrimidine (CAS 91749-26-7)
- (4-Amino-3-bromo-5-(trifluoromethyl)phenyl)methanol (CAS 688020-70-4)
- 6-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole (CAS 1426579-39-6)
- 5-Ethyl-N-isobutyl-4-methylthiophene-2-carboxamide (CAS 1210715-54-0)
- Human glucagon CRS (CAS 9007-92-5)
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