6-Nitrobenzoxazole-2(3H)-one CAS 4694-91-1
| CAS No. | 4694-91-1 |
| Molecular Formula | C7H4N2O4 |
| Molecular Weight | 180.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 6-Nitrobenzoxazole-2(3H)-one (C7H4N2O4) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 6-Nitrobenzoxazole-2(3H)-one (CAS 4694-91-1), a certified reference material (molecular formula C7H4N2O4, MW 180.12 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 6-Nitrobenzoxazole-2(3H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H4N2O4 |
| 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.) | 1958 |
| Nitrogen Atoms | 2 |
Related Nitrobenzoxazole Standards
- 4-Nitrobenzoxazole-2(3H)-one (CAS 28955-71-7)
- 2-Methyl-4-nitrobenzoxazole (CAS 478553-83-2)
- 2-Methyl-5-nitrobenzoxazole (CAS 32046-51-8)
- 2-Methyl-6-nitrobenzoxazole (CAS 5683-43-2)
- 2-Ethyl-6-nitrobenzoxazole (CAS 13243-39-5)
- 2-Ethyl-4-nitrobenzoxazole (CAS 477603-34-2)
- 2-Ethyl-5-nitrobenzoxazole (CAS 204771-74-4)
- 4-Nitrobenzoxazole-2-methanamine (CAS 1510253-71-0)
Recommended Standards
- 6-Nitrobenzo[d]isoxazol-3(2h)-one (CAS 36238-81-0)
- 6-Oxo-6,7-dihydro-3H-purine-8-carboxylic acid (CAS 98141-78-7)
- 6-Nitro-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 80773-01-9)
- 7-Nitro-1,2-benzisoxazol-3(2H)-one (CAS 60357-78-0)
- 4-Hydrazinyl-6-methoxypyrimidine (CAS 23905-80-8)
- 2-Methyl-3-(4-methylpiperidin-1-yl)propanehydrazide (CAS 744243-56-9)
- 1-Cyclopropoxy-3-iodo-2-(trifluoromethyl)benzene (CAS 1243398-29-9)
- 5-(4-methylpiperidin-1-yl)-1,3,4-thiadiazol-2-amine (CAS 71125-48-9)
- 2,2-Bis(ethylthio)acetamide (CAS 89450-18-0)
- 3-[2-(methylamino)ethyl]-1,3-oxazolidin-2-one hydrochloride (CAS 1394040-78-8)
- [1,2,4]Triazolo[4,3-a]pyridine-3-carboxamide (CAS 4919-09-9)
- tert-Butyl 3-(4-oxo-3,4,5,6,7,8-hexahydropyrido[3,4-d]pyrimidin-2-yl)benzylcarbamate (CAS 1956386-29-0)
- Docetaxel Impurity 87 (CAS CATO-C4X-161987)
- Neuropeptide GE (CAS 134748-04-2)
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