1,2,4-Oxadiazole-3,5-dicarboxylic acid CAS 371214-75-4
| CAS No. | 371214-75-4 |
| Molecular Formula | C4H2N2O5 |
| Molecular Weight | 158.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,2,4-Oxadiazole-3,5-dicarboxylic acid (C4H2N2O5) contains a carbohydrate-derived structure, an amide group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
1,2,4-Oxadiazole-3,5-dicarboxylic acid (CAS 371214-75-4), molecular formula C4H2N2O5 and molecular weight 158.07 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C4H2N2O5 |
| Molecular Weight | 158.07 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Oxadiazole Standards
- 1,2,5-Oxadiazole-3,4-dicarboxamide (CAS 56873-33-7)
- 2-Benzyl-1,3,4-oxadiazole (CAS 13148-63-5)
- 5-Propyl-1,3,4-oxadiazole-2-carboxamide (CAS 99367-46-1)
- 1,1'-(1,3,4-Oxadiazole-2,5-diyl)diethanone (CAS 215666-58-3)
- 1,2,5-oxadiazole-3,4-dicarboxylic acid (CAS 48113-77-5)
- 5-methyl-1,2,4-oxadiazole-3-carbonyl azide (CAS 1423029-02-0)
- 5-Methyl-1,3,4-oxadiazole-2-sulfonamide (CAS 98022-45-8)
- 5-methyl-1,3,4-oxadiazole-2-carbonyl chloride (CAS 889131-28-6)
Recommended Standards
- 4,5-Dinitro-1H-imidazole (CAS 19183-14-3)
- 1,3-Dinitro-1H-pyrazole (CAS 38858-81-0)
- 5-Nitro-1H-1,2,3-triazole-4-carboxylicacid (CAS 145769-54-6)
- 1,4-Dinitro-1H-pyrazole (CAS 35852-77-8)
- Marmesin angelate (CAS 13209-79-5)
- IMidazo[2,1-b]benzothiazole-3-carboxaldehyde, 2-(3,4-dichlorophenyl)- (CAS 901924-70-7)
- 4-Chloro-1-(2-fluoroethyl)-1H-pyrazole-3-carboxylic acid (CAS 1429417-52-6)
- Methyl 5-(3-chlorobenzyl)-1H-pyrrole-2-carboxylate (CAS 1706460-19-6)
- 1-(2,3-Dimethylphenyl)-2,2,2-trifluoroethan-1-one (CAS 886369-37-5)
- 3-Bromo-N-methylanilinehydrobromide (CAS 1159823-24-1)
- Indometacin Impurity 47 (CAS CATO-C4X-147047)
- 2,5-Dichloro-4-hydroxybenzenesulfonamide (CAS 71292-92-7)
- 2,3-Difluoro-N-hydroxybenzimidamide (CAS 885957-13-1)
- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
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