Ethyl 7-methoxy-2-methylpyrazolo[1,5-a]pyridine-4-carboxylate CAS 1956331-53-5
| CAS No. | 1956331-53-5 |
| Molecular Formula | C12H14N2O3 |
| Molecular Weight | 234.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Ethyl 7-methoxy-2-methylpyrazolo[1,5-a]pyridine-4-carboxylate (C12H14N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 234.25 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).
Ethyl 7-methoxy-2-methylpyrazolo[1,5-a]pyridine-4-carboxylate (CAS 1956331-53-5), molecular formula C12H14N2O3 and molecular weight 234.25 g/mol, is a CATO reference standard with documented purity and traceability.
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), Ethyl 7-methoxy-2-methylpyrazolo[1,5-a]pyridine-4-carboxylate 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 | C12H14N2O3 |
| Molecular Weight | 234.25 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- tert-Butyl 1-methyl-1H-pyrazolo[3,4-d]pyrimidine-4-carboxylate (CAS 1956326-87-6)
- 2-(4-(2-Oxopiperazin-1-yl)phenyl)acetic acid (CAS 1956382-09-4)
- (2S,4R)-1-benzoyl-4-hydroxypyrrolidine-2-carboxamide (CAS 1955474-53-9)
- tert-Butyl 9-methyl-9H-purine-6-carboxylate (CAS 1956385-87-7)
- 7-Fluoroindoline hydrochloride (CAS 1820711-83-8)
- (R)-1-(3,5-difluorophenyl)but-3-en-1-amine (CAS 1270203-83-2)
- Tributyl(5-methoxythiophen-2-yl)stannane (CAS 879480-43-0)
- 1-(3-Ethoxy-5-fluorophenyl)ethan-1-ol (CAS 1443343-85-8)
- tert-Butyl 2-(2-(phenylamino)pyridin-3-yl)pyrrolidine-1-carboxylate (CAS 1352501-25-7)
- Methylene Dithiocyanate (CAS 6317-18-6)
- CAS 252022-32-5 (CAS 252022-32-5)
- 1H-Benzotriazol-5-ol (CAS 54013-40-0)
- tert-Butyl 4-(2-fluorophenoxy)piperidine-1-carboxylate (CAS 944808-08-6)
- Liraglutide(3-31)TFA Salt (CAS CATO-C4X-19921)
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