5-Nitro-2,3-dihydro-1,3-benzoxazol-2-one CAS 3889-13-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3889-13-2 |
| Molecular Formula | C7H4N2O4 |
| Molecular Weight | 180.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Nitro-2,3-dihydro-1,3-benzoxazol-2-one (CAS 3889-13-2) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C7H4N2O4. Molecular weight: 180.12 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
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 Nitro Standards
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- 2-Nitro-1H-purin-6-amine (CAS 501950-35-2)
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- 6-Nitro-[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 80773-01-9)
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Recommended Standards
- 5-Nitrobenzo[c][1,2,5]oxadiazol-4-amine (CAS 22250-46-0)
- 4-Oxo-1H,4H,5H-pyrazolo[3,4-d]pyrimidine-3-carboxylic acid (CAS 864872-01-5)
- 5-Nitrobenzo[d]isoxazol-3-ol (CAS 36238-80-9)
- Thiazolidine-4-carboxylic acid hydrochloride (CAS 100868-60-8)
- 2-Mercapto-1H-indole-3-carbaldehyde (CAS 183946-30-7)
- 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin (CAS 3268-87-9)
- 2-(Methyldithio)-isobutyraldehyde (CAS 67952-60-7)
- 3-Chloro-2,4-dimethyl-6-propoxybenzaldehyde (CAS 883520-99-8)
- (1R,3S)-3-(2-(4-chlorophenyl)-2-oxoethyl)cyclopentane-1-carboxylic acid (CAS 733740-36-8)
- [D-Phe22]Semaglutide (CAS CATO-C4X-2226222)
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