5-Methoxy-3-(4-nitrophenyl)-1,3,4-oxadiazol-2(3H)-one CAS 359714-34-4
| CAS No. | 359714-34-4 |
| Molecular Formula | C9H7N3O5 |
| Molecular Weight | 237.17 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.
5-Methoxy-3-(4-nitrophenyl)-1,3,4-oxadiazol-2(3H)-one (CAS 359714-34-4), molecular formula C9H7N3O5 and molecular weight 237.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Methoxy-3-(4-nitrophenyl)-1,3,4-oxadiazol-2(3H)-one (C9H7N3O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 237.17 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5-Methoxy-3-(4-nitrophenyl)-1,3,4-oxadiazol-2(3H)-one 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 | C9H7N3O5 |
| Molecular Weight | 237.17 g/mol |
| Appearance | Pale yellow to 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
Related Methoxy Standards
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- 3-Methoxy-5-nitrobenzofuran-2-carboxylic acid (CAS 1710661-36-1)
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Recommended Standards
- 5-[(4-nitro-1h-pyrazol-1-yl)methyl]furan-2-carboxylic acid (CAS 436086-87-2)
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- 5-(5-Methyl-1,3,4-oxadiazol-2-yl)-3-nitrobenzene-1,2-diol (CAS 923288-14-6)
- 5-(5-Methyl-1,2,4-oxadiazol-3-yl)-3-nitrobenzene-1,2-diol (CAS 923288-13-5)
- (2,4-Dichlorophenyl)(4-methoxyphenyl)methanone (CAS 66938-30-5)
- 7,8-Dimethoxyquinazolin-4-ol (CAS 19178-11-1)
- 4-Bromoacenaphthylene-1,2-dione (CAS 43017-97-6)
- Ethyl 4-iodo-2-(trifluoromethyl)benzoate (CAS 954818-76-9)
- 6-bromo-2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine (CAS 1131992-30-7)
- 1-(3-Bromoprop-1-en-2-yl)-2-fluorobenzene (CAS 1628355-42-9)
- (2-chloro-6-fluorophenyl)methanesulfonamide (CAS 174303-00-5)
- 3-Ethyl-1H-purine-2,6(3H,7H)-dione (CAS 41078-01-7)
- 4-Bromo-2-(pyrrolidin-1-yl)aniline (CAS 802841-82-3)
- Tau Peptide (301-315) trifluoroacetate salt (CAS 330456-48-9)
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