2-Cyclopropyl-5-methyl-1,3-oxazole-4-carbaldehyde CAS 1823035-12-6
| CAS No. | 1823035-12-6 |
| Molecular Formula | C8H9NO2 |
| Molecular Weight | 151.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Cyclopropyl-5-methyl-1,3-oxazole-4-carbaldehyde (C8H9NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
2-Cyclopropyl-5-methyl-1,3-oxazole-4-carbaldehyde (CAS 1823035-12-6) is a high-purity analytical reference standard with the molecular formula C8H9NO2 and a molecular weight of 151.16 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-Cyclopropyl-5-methyl-1,3-oxazole-4-carbaldehyde 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 | C8H9NO2 |
| Molecular Weight | 151.16 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Related Cyclopropyl Standards
- 1-Cyclopropyl-1H-pyrrole-2-carboxylic acid (CAS 1155519-52-0)
- 4-Cyclopropyl-1h-pyrrole-3-carboxylic acid (CAS 1247103-26-9)
- 3-Cyclopropyl-1h-pyrrole-2-carboxylic acid (CAS 1369142-11-9)
- 2-cyclopropyl-1H-pyrrole-3-carboxylic acid (CAS 1484637-07-1)
- 1-(2-cyclopropyl-1,3-oxazol-4-yl)ethan-1-one (CAS 1519375-49-5)
- 5-Cyclopropyl-1H-pyrrole-2-carboxylic acid (CAS 1553133-47-3)
- 3-Cyclopropyl-5-methylisoxazole-4-carbaldehyde (CAS 878204-45-6)
- n-Cyclopropyl-1h-imidazole-1-carboxamide (CAS 1033090-34-4)
Recommended Standards
- 4,6-Dimethylpicolinic acid (CAS 18088-10-3)
- 2-Hydroxy-6,7-dihydro-1H-cyclopenta[b]pyridin-4(5H)-one (CAS 1823743-81-2)
- 180339-33-7 3R-1314 N-[(4Z)-4,5,6,7-tetrahydro-1-benzofuran-4-ylidene]hydroxylamine (CAS 180339-33-7)
- Benzo[d][1,3]dioxol-4-ylmethanamine (CAS 182634-34-0)
- 6-Nitroindole (CAS 4769-96-4)
- Decane-1,10-diyl diacetate (CAS 26118-61-6)
- 2-(2-Fluorophenyl)cyclopropan-1-amine hydrochloride (CAS 1269152-01-3)
- 1-(4-(Aminomethyl)piperidin-1-yl)-2-(1H-1,2,4-triazol-1-yl)ethan-1-one (CAS 1247808-62-3)
- 1-Benzyl-5,6,7-trimethoxy-1h-indole-2-carboxylic acid (CAS 1240571-20-3)
- Methyl 1-(3-bromobenzyl)piperidine-4-carboxylate (CAS 1057273-30-9)
- 2-(2-Aminopropan-2-yl)pyrimidin-4-amine (CAS 1342291-63-7)
- 5-Iodo-1-methylpyrazole-4-carboxylic Acid (CAS 1198113-11-9)
- Cilostazol Impurity 6 (CAS 87153-04-6)
- T-Peptide (CAS 2022956-62-1)
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