4-Nitrobenzo[c][1,2,5]oxadiazol-5-amine CAS 18333-71-6
| CAS No. | 18333-71-6 |
| Molecular Formula | C6H4N4O3 |
| Molecular Weight | 180.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Nitrobenzo[c][1,2,5]oxadiazol-5-amine (C6H4N4O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 180.12 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
4-Nitrobenzo[c][1,2,5]oxadiazol-5-amine (CAS 18333-71-6), molecular formula C6H4N4O3 and molecular weight 180.12 g/mol, is a CATO reference standard with documented purity and traceability.
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), 4-Nitrobenzo[c][1,2,5]oxadiazol-5-amine 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 | C6H4N4O3 |
| Molecular Weight | 180.12 g/mol |
| Appearance | Off-white to pale 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, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 4 |
Related Nitrobenzo Standards
- 5-Nitrobenzo[c][1,2,5]oxadiazol-4-amine (CAS 22250-46-0)
- 5-Nitrobenzo[d]isoxazol-3-ol (CAS 36238-80-9)
- 5-Nitrobenzo[d]isoxazol-6-ol (CAS 2092501-37-4)
- 5-Nitrobenzo[d]isoxazol-7-ol (CAS 55477-52-6)
- 6-Nitrobenzo[d]isoxazol-3(2h)-one (CAS 36238-81-0)
- 4-Nitrobenzo[d]isothiazole (CAS 139037-03-9)
- 2-Nitrobenzo[d]thiazole (CAS 23505-64-8)
- 4-Nitrobenzo[d]thiazole (CAS 2942-08-7)
Recommended Standards
- 4-Hydroxy-2-nitrobenzo[d]oxazole (CAS 1804412-78-9)
- 2-(3-(Trifluoromethyl)cyclobutylidene)acetic acid (CAS 1936239-46-1)
- 2-Oxo-2,3-dihydrooxazolo[4,5-b]pyridine-6-carboxylic acid (CAS 1555998-02-1)
- (5-Methyl-2-(trifluoromethyl)furan-3-yl)methanol (CAS 306935-04-6)
- N-(2-morpholinoethyl)benzenesulfonamide (CAS 349397-02-0)
- 4-(3-Bromo-4-methoxybenzylidene)-2-phenyloxazol-5(4H)-one (CAS 29973-99-7)
- 2-(Phenylethynyl)pyridin-3-amine (CAS 288254-71-7)
- N-(2-isopropyl-3-methylbutyl)thietan-3-amine (CAS 1858872-50-0)
- (1-(4-Fluoro-3-(trifluoromethyl)phenyl)-2,5-dimethyl-1H-pyrrol-3-yl)methanamine (CAS 1177342-17-4)
- 1-Benzyl-4-methylpiperazine Dihydrochloride (CAS 861020-53-3)
- 3-((4-Chlorophenyl)thio)-1-(p-tolyl)propan-1-one (CAS 882748-89-2)
- 3-Bromo-4-(difluoromethyl)-6-methoxypyridin-2-amine (CAS 1805287-76-6)
- ethyl 5H-pyrrolo[3,4-b]pyridine-6(7H)-carboxylate (CAS 47740-01-0)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com