3-(2H-1,3-benzodioxol-5-yl)-5-methyl-4,5-dihydro-1,2-oxazole-5-carboxylic acid CAS 1326814-07-6
| CAS No. | 1326814-07-6 |
| Molecular Formula | C12H11NO5 |
| Molecular Weight | 249.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(2H-1,3-benzodioxol-5-yl)-5-methyl-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 1326814-07-6) is a high-purity analytical reference standard with the molecular formula C12H11NO5 and a molecular weight of 249.22 g/mol.
The molecular framework of 3-(2H-1,3-benzodioxol-5-yl)-5-methyl-4,5-dihydro-1,2-oxazole-5-carboxylic acid (C12H11NO5) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 3-(2H-1,3-benzodioxol-5-yl)-5-methyl-4,5-dihydro-1,2-oxazole-5-carboxylic acid 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 | C12H11NO5 |
| Molecular Weight | 249.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1991 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- Ethyl 7-methyl-6-nitroimidazo[1,2-a]pyridine-2-carboxylate (CAS 132272-53-8)
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- Ethyl 7-methyl-8-nitroimidazo[1,2-a]pyridine-2-carboxylate (CAS 132272-52-7)
- Methyl 2-((1,3-dioxoisoindolin-2-yl)oxy)propanoate (CAS 131042-52-9)
- cyclobutane-1,2-diol (CAS 100130-45-8)
- 1-(Furan-2-ylmethyl)imidazolidine-2,4,5-trione (CAS 744243-43-4)
- 3-Cyclopropyl-N-propyl-1,2,4-oxadiazol-5-amine (CAS 1249492-31-6)
- Fasudil Impurity 29 (CAS CATO-C4X-136529)
- 2,4-Dimethyl-7-nitro-1H-benzo[d]imidazole (CAS 23291-70-5)
- 4-(2,6-Dibromo-1H-indol-3-yl)butanoic acid (CAS 91844-19-8)
- 738S62LZWY 3938-95-2 Ethyl pivalate Pivalic acid, ethyl ester (8CI) Propanoic acid, 2,2-dimethyl-, ethyl ester EINECS 223-520-1 Ethyl 2,2-dimethylpropanoate Ethyl 2,2-dimethylpropionate Ethyl trimethylacetate NSC 17494 Trimethylacetic acid, ethyl ester UNII-738S62LZWY (CAS 3938-95-2)
- 1,1,1-Trifluoro-4,4-dimethylpentan-2-ol (CAS 1343163-35-8)
- 3-Pyrrolidinyl 4-chloro-2-pyridinecarboxylatehydrochloride (CAS 1219948-51-2)
- Semaglutide Impurity 149 (CAS CATO-C4X-2226149)
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