Ethyl 3-(3,4-dimethoxyphenyl)-7-oxo-1,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylate CAS 860610-81-7
| CAS No. | 860610-81-7 |
| Molecular Formula | C17H17N3O5 |
| Molecular Weight | 343.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 343.33 g/mol gives Ethyl 3-(3,4-dimethoxyphenyl)-7-oxo-1,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ethyl 3-(3,4-dimethoxyphenyl)-7-oxo-1,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylate (CAS 860610-81-7), a certified reference material (molecular formula C17H17N3O5, MW 343.33 g/mol) for analytical method development and quality control.
Structurally, Ethyl 3-(3,4-dimethoxyphenyl)-7-oxo-1,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylate (C17H17N3O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 343.33 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C17H17N3O5 |
| Molecular Weight | 343.33 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- 13-(3,5-Dimethoxyphenyl)-11-methyl-1,8-diazatricyclo[7.4.0.0,2,7]trideca-2,4,6,8,10,12-hexaene-10-carbonitrile (CAS 730950-08-0)
- 4-(3,5-Dimethoxyphenyl)-5-(phenoxymethyl)-4H-1,2,4-triazole-3-thiol (CAS 917747-01-4)
- 1-(3,4-Dimethoxyphenyl)-4(3,4-methylenedioxyphenyl)-2,3-dimethylbutane (CAS 129684-08-8)
- {[(3,4-dimethoxyphenyl)methyl]sulfamoyl}[(thiophen-2-yl)methyl]amine (CAS 337924-50-2)
- N-(2,4-Dimethoxyphenyl)-2-phenylmorpholine-4-carboxamide (CAS 1210486-07-9)
- 6-(2-(3,4-Dimethoxyphenyl)thiazol-4-yl)picolinic acid (CAS 1027030-15-4)
- 2-(2,6-Dimethoxyphenyl)-5,6-dimethoxy-4H-chromen-4-one (CAS 14813-19-5)
- 2-(3,4-Dimethoxyphenyl)-3,5-dihydroxy-7-methoxy-4H-chromen-4-one (CAS 6068-80-0)
Recommended Standards
- Ethyl 1-(4-methoxybenzyl)-4,6-dioxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 2105905-45-9)
- Methyl 2-(2-(4-formyl-2-methoxyphenoxy)acetamido)benzoate (CAS 881582-85-0)
- BOC-ALA-GLY-OSU (CAS 74535-75-4)
- Methyl 3-(4-methyl-3-nitro-N-(pyridin-2-yl)benzamido)propanoate (CAS 694517-54-9)
- 4-Bromopentane-2,3-dione (CAS 21619-25-0)
- Toringin (CAS 1329-10-8)
- 1-(4-((4-Butoxybenzylidene)amino)phenyl)ethan-1-one (CAS 17224-18-9)
- 2-Chloro-N-(2-(4-methoxyphenyl)-2H-benzo[d][1,2,3]triazol-5-yl)acetamide (CAS 928712-10-1)
- 6-Methoxy-2,2-dimethyl-chroman-4-ylaminehydrochloride (CAS 752184-51-3)
- 3-Cyano-n-(propan-2-yl)benzene-1-sulfonamide (CAS 1003740-72-4)
- 2-(3-Bromo-6-cyano-2-methylphenyl)acetic acid (CAS 1807081-88-4)
- 3-(2-Fluorophenyl)-1-(1,2,3,4-tetrahydroisoquinolin-5-yl)urea (CAS 1157922-38-7)
- Benzonatate Impurity 4 (CAS CATO-C4X-30664)
- Semaglutide impurity 248 (CAS CATO-C4X-2226248)
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