rac-(2R,3S)-4-ethyl-3-(1-methyl-1H-pyrazol-5-yl)-5-oxomorpholine-2-carboxylic acid CAS 2044705-46-4
| CAS No. | 2044705-46-4 |
| Molecular Formula | C11H15N3O4 |
| Molecular Weight | 253.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
rac-(2R,3S)-4-ethyl-3-(1-methyl-1H-pyrazol-5-yl)-5-oxomorpholine-2-carboxylic acid (CAS 2044705-46-4), molecular formula C11H15N3O4 and molecular weight 253.25 g/mol, is a CATO reference standard with documented purity and traceability.
rac-(2R,3S)-4-ethyl-3-(1-methyl-1H-pyrazol-5-yl)-5-oxomorpholine-2-carboxylic acid (C11H15N3O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures rac-(2R,3S)-4-ethyl-3-(1-methyl-1H-pyrazol-5-yl)-5-oxomorpholine-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H15N3O4 |
| Molecular Weight | 253.25 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 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 3 |
Recommended Standards
- rac-(2R,3S)-4-ethyl-3-(1-methyl-1H-imidazol-2-yl)-5-oxomorpholine-2-carboxylic acid (CAS 2044705-54-4)
- tert-Butyl (4-amino-3-nitrophenyl)carbamate (CAS 219492-81-6)
- Pyridoxine Diacetate (CAS 26280-83-1)
- Tert-butyl 2,4-dihydroxy-5,7-dihydro-6H-pyrrolo[3,4-d]pyrimidine-6-carboxylate (CAS 2187509-23-3)
- 4-Ethoxy-2-ethynylpyridine (CAS 1565481-60-8)
- Ethyl 2-(6-methylpyridin-3-yl)acetate (CAS 91843-27-5)
- 1-((2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-fluoropyrimidin-2(1H)-one (CAS 64967-16-4)
- 3-Amino-1,3-diazaspiro[4.5]decane-2,4-dione (CAS 16252-63-4)
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