trans-2-(1-methyl-1H-pyrazol-5-yl)oxane-3-carboxylic acid CAS 1820575-96-9
| CAS No. | 1820575-96-9 |
| Molecular Formula | C10H14N2O3 |
| Molecular Weight | 210.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
trans-2-(1-methyl-1H-pyrazol-5-yl)oxane-3-carboxylic acid (CAS 1820575-96-9) is a high-purity analytical reference standard with the molecular formula C10H14N2O3 and a molecular weight of 210.23 g/mol.
Structurally, trans-2-(1-methyl-1H-pyrazol-5-yl)oxane-3-carboxylic acid (C10H14N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 210.23 g/mol, it falls into the medium-molecular-weight range. 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).
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), trans-2-(1-methyl-1H-pyrazol-5-yl)oxane-3-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 | C10H14N2O3 |
| Molecular Weight | 210.23 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 |
| 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.) | 1995 |
| Nitrogen Atoms | 2 |
Recommended Standards
- (2S,3S)-2-(1-ethyl-1H-pyrazol-4-yl)tetrahydrofuran-3-carboxylic acid (CAS 1820574-45-5)
- (2R,3R)-2-(1-ethyl-1H-pyrazol-5-yl)oxolane-3-carboxylic acid (CAS 1820576-26-8)
- 2-(2-Ethoxy-5-methoxyphenyl)acetic acid (CAS 18086-33-4)
- (2S,3S)-2-(1,5-dimethyl-1H-pyrazol-4-yl)tetrahydrofuran-3-carboxylic acid (CAS 1820580-50-4)
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