rac-(2R,3R)-2-(1-ethyl-1H-pyrazol-4-yl)oxane-3-carbaldehyde CAS 1969287-73-7
| CAS No. | 1969287-73-7 |
| Molecular Formula | C11H16N2O2 |
| Molecular Weight | 208.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), rac-(2R,3R)-2-(1-ethyl-1H-pyrazol-4-yl)oxane-3-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.
CATO supplies rac-(2R,3R)-2-(1-ethyl-1H-pyrazol-4-yl)oxane-3-carbaldehyde (CAS 1969287-73-7), a certified reference material (molecular formula C11H16N2O2, MW 208.26 g/mol) for analytical method development and quality control.
rac-(2R,3R)-2-(1-ethyl-1H-pyrazol-4-yl)oxane-3-carbaldehyde (C11H16N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C11H16N2O2 |
| Molecular Weight | 208.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Ethyl 3-methyl-4,5,6,7-tetrahydro-2H-indazole-5-carboxylate (CAS 1956379-74-0)
- rac-(2R,3R)-2-(1-ethyl-1H-pyrazol-5-yl)oxane-3-carbaldehyde (CAS 1969288-49-0)
- (3-Cyclopropyl-5,6-dimethoxypyridin-2-yl)methanamine (CAS 1956327-75-5)
- N-tert-butyl-6-methoxypyridine-2-carboxamide (CAS 197007-86-6)
- n-((1-(2,2-Difluoroethyl)-5-methyl-1h-pyrazol-4-yl)methyl)cyclopropanamine (CAS 1170869-32-5)
- N-(5-Chloro-2-nitrophenyl)acetamide (CAS 5443-33-4)
- (5-nitrofuran-2-yl)methanamine hydrochloride (CAS 39221-63-1)
- 1-(3-chloro-4-methoxyphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 932976-16-4)
- 4-(2-Piperidin-1-yl-ethoxy)-benzylamine (CAS 122909-88-0)
- N-CBz-2-chloro-4-fluoro-3-methylaniline (CAS 1951439-85-2)
- 2-((3-Cyano-6-cyclopropyl-4-(trifluoromethyl)pyridin-2-yl)thio)-N,N-diethylacetamide (CAS 664999-71-7)
- 1-(tert-Butyl)-3-(5-(isopentylthio)-1,3,4-thiadiazol-2-yl)urea (CAS 898436-69-6)
- 2-amino-4-cyclopropyl-4-methoxybutanoic acid (CAS 1909313-46-7)
- Semaglutide impurity 33 (CAS CATO-C4X-222633)
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