ethyl 5-formyl-1-methyl-pyrazole-4-carboxylate CAS 40995-41-3
| CAS No. | 40995-41-3 |
| Molecular Formula | C8H14N2O3 |
| Molecular Weight | 186.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of ethyl 5-formyl-1-methyl-pyrazole-4-carboxylate (C8H14N2O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies ethyl 5-formyl-1-methyl-pyrazole-4-carboxylate (CAS 40995-41-3), a certified reference material (molecular formula C8H14N2O3, MW 186.21 g/mol) for analytical method development and quality control.
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 5-formyl-1-methyl-pyrazole-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 | C8H14N2O3 |
| Molecular Weight | 186.21 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
Related ethyl Standards
- Ethyl 4-formyl-1,2,3-thiadiazole-5-carboxylate (CAS 59944-71-7)
- Ethyl 5-formyl-1,2,3-thiadiazole-4-carboxylate (CAS 4609-58-9)
- 3-Formyl-4-methoxyphenylboronic acid (CAS 121124-97-8)
- 3-Formyl-2-methylquinoline 1-oxide (CAS 62542-34-1)
- 2-(5-formyl-2,4-dimethyl-1H-pyrrol-3-yl)acetic acid (CAS 52513-48-1)
- ethyl 2-formyl-1,3-thiazole-5-carboxylate (CAS 509083-71-0)
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Recommended Standards
- Ethyl 5-amino-6-oxopiperidine-2-carboxylate (CAS 915976-48-6)
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- Ethyl 4,6-dioxoheptanoate (CAS 20754-03-4)
- Ethyl 5-vinyl-1,3-dioxane-5-carboxylate (CAS 61729-18-8)
- 3-(2-Methyl-5-(trifluoromethoxy)phenyl)propanoic acid (CAS 1373921-10-8)
- 1-(4-Hydroxyphenyl)-1,2-dihydro-5H-tetrazole-5-thione (CAS 52431-78-4)
- 2-(Isopropyl(2-oxo-2-(thiophen-2-yl)ethyl)amino)acetic acid (CAS 1353978-17-2)
- 5-Bromo-1-(4-(hydroxymethyl)phenyl)-4-methyl-1H-pyrrole-2-carbonitrile (CAS 142015-94-9)
- 2-Pentylquinoline-4,6-diamine (CAS 423184-78-5)
- 3-(Naphthalene-2-sulfonamido)benzoic acid (CAS 186032-64-4)
- (1-Methyl-5-(phenylthio)-3-(trifluoromethyl)-1H-pyrazol-4-yl)methanol (CAS 318239-51-9)
- (3-(3-Bromobenzamido)phenyl)boronic acid (CAS 2246865-32-5)
- N-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-1,1,1-trifluoromethanesulfonamide (CAS 1150111-91-3)
- Liraglutide(5-31)TFA Salt (CAS CATO-C4X-19924)
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