2-((3-Ethyl-1,4,6,7-tetrahydro-5H-pyrazolo[4,3-c]pyridin-5-yl)methyl)-3,5-dimethoxybenzoic acid CAS 1609875-19-5
| CAS No. | 1609875-19-5 |
| Molecular Formula | C18H23N3O4 |
| Molecular Weight | 345.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-((3-Ethyl-1,4,6,7-tetrahydro-5H-pyrazolo[4,3-c]pyridin-5-yl)methyl)-3,5-dimethoxybenzoic acid is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-((3-Ethyl-1,4,6,7-tetrahydro-5H-pyrazolo[4,3-c]pyridin-5-yl)methyl)-3,5-dimethoxybenzoic acid (CAS 1609875-19-5), molecular formula C18H23N3O4 and molecular weight 345.39 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H23N3O4, 2-((3-Ethyl-1,4,6,7-tetrahydro-5H-pyrazolo[4,3-c]pyridin-5-yl)methyl)-3,5-dimethoxybenzoic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 345.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H23N3O4 |
| Molecular Weight | 345.39 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- 2,3,4,7-Tetrahydro-5-[[(trifluoromethyl)sulfonyl]oxy]-1H-Azepine-1-carboxylic Acid 1,1-Dimethylethyl Ester (CAS 188975-73-7)
- N-(1-(Tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-yl)-1-(thiophen-2-yl)cyclopentane-1-carboxamide (CAS 1798042-12-2)
- 2-(1-Boc-1,2,3,6-tetrahydro-4-pyridyl)-4-bromothiazole (CAS 1332301-87-7)
- 1-(Tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole (CAS 1192187-75-9)
- 1-(Tetrahydro-2H-pyran-2-yl)-3-(trifluoromethyl)-1H-pyrazole-5-boronic acid pinacol ester (CAS 2096331-10-9)
- 2-Methyl-4-((tetrahydro-2H-pyran-2-yl)oxy)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (CAS 1265359-19-0)
- 1-(4-((Tetrahydro-2H-pyran-2-yl)oxy)but-2-yn-1-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 2378052-69-6)
- 3-Benzyl-1-(tetrahydro-2H-pyran-4-yl)-1-(2-(thiophen-2-yl)ethyl)urea (CAS 1797546-44-1)
Recommended Standards
- 5-(3,4-Dimethoxybenzyl)-1-(pyridin-2-yl)imidazo[1,5-a]pyridine (CAS 146041-66-9)
- 6-Benzyl 5-tert-butyl (6S)-4-oxo-5-azaspiro[2.4]heptane-5,6-dicarboxylate (CAS 1628205-95-7)
- CYM-5520 (CAS 1449747-00-5)
- 3,5-Dimethoxy-N-(2-methoxy-2-(2-methoxyphenyl)ethyl)benzamide (CAS 1795087-96-5)
- 2-Amino-9-trityl-1H-purin-6(9H)-one (CAS 374678-33-8)
- (S)-1-(tert-Butoxycarbonyl)-2-(trifluoromethyl)pyrrolidine-2-carboxylic acid (CAS 1393524-23-6)
- 2-Chloro-n-[4-(methylsulfanyl)phenyl]propanamide (CAS 1016753-59-5)
- 3-Fluoro-4-(trifluoromethoxy)phenylboronic Acid (CAS 187804-79-1)
- 1,5-Dibromopentane-d10 (CAS 1219802-90-0)
- 2,4-Bis(3-fluorophenyl)pyridine (CAS 1214354-00-3)
- 3-Methyl-1H-pyrazole-4,5-diamine dihydrochloride (CAS 199340-92-6)
- 1,1'',1'''-Trimethyl[4,2';4',4'';6',4''']quaterpyridinium trichloride (CAS 116196-03-3)
- 1-(2-Chloro-6-fluorobenzoyl)azetidine-3-carboxylic acid (CAS 1410085-77-6)
- Sperm Peptide P10G (H-2424.0001) (CAS 137353-73-2)
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