3-(3,4-Dimethoxyphenyl)-6-(2-hydroxyethyl)-5-methylpyrazolo[1,5-a]pyrimidin-7(1H)-one CAS 866144-63-0
| CAS No. | 866144-63-0 |
| Molecular Formula | C17H19N3O4 |
| Molecular Weight | 329.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(3,4-Dimethoxyphenyl)-6-(2-hydroxyethyl)-5-methylpyrazolo[1,5-a]pyrimidin-7(1H)-one 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.
3-(3,4-Dimethoxyphenyl)-6-(2-hydroxyethyl)-5-methylpyrazolo[1,5-a]pyrimidin-7(1H)-one (CAS 866144-63-0), molecular formula C17H19N3O4 and molecular weight 329.35 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H19N3O4, 3-(3,4-Dimethoxyphenyl)-6-(2-hydroxyethyl)-5-methylpyrazolo[1,5-a]pyrimidin-7(1H)-one 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 329.35 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.
As a certified reference material (CRM), 3-(3,4-Dimethoxyphenyl)-6-(2-hydroxyethyl)-5-methylpyrazolo[1,5-a]pyrimidin-7(1H)-one 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 | C17H19N3O4 |
| Molecular Weight | 329.35 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Dimethoxyphenyl Standards
- 2-(4-(3-(2,3-Dimethoxyphenyl)ureido)phenyl)acetamide (CAS 1251579-29-9)
- 6-(3,5-Dimethoxyphenyl)-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one (CAS 1628795-45-8)
- (E)-3-(3,4-dimethoxyphenyl)-1,6-dimethyl-1,5,6,7-tetrahydro-4H-indazol-4-one O-methyl oxime (CAS 1024720-16-8)
- 1-(3,4-Dimethoxyphenyl)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline (CAS 15547-55-4)
- N-(5-(2,5-Dimethoxyphenyl)-1,3,4-oxadiazol-2-yl)-1-methyl-1H-pyrazole-5-carboxamide (CAS 1170576-50-7)
- (4Z)-4-{[(2,4-dimethoxyphenyl)amino]methylidene}-1-methyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 320425-06-7)
- 3-(3,4-Dimethoxyphenyl)-4-iodo-1H-pyrazole (CAS 1708168-77-7)
- 3-(2,5-dimethoxyphenyl)-2-sulfanyl-3,4-dihydroquinazolin-4-one (CAS 380436-98-6)
Recommended Standards
- 3-(((Benzyloxy)carbonyl)amino)-3-(4-methoxyphenyl)propanoic acid (CAS 778598-12-2)
- 3-(6-Methoxy-2-naphthoyl)quinolin-4(1H)-one (CAS 821004-11-9)
- 3-(((Benzyloxy)carbonyl)amino)-3-(3-methoxyphenyl)propanoic acid (CAS 773867-55-3)
- 3-(Acridin-9-ylamino)-5-aminobenzoic acid (CAS 655238-61-2)
- 2-Bromo-1-(8-azaspiro[4.5]decan-8-yl)ethan-1-one (CAS 1411607-57-2)
- 3,7-Dibromoimidazo[1,2-a]pyridine (CAS 1263060-75-8)
- Methyl 2-{2-oxo-9-oxatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3,5,7,12,14-hexaen-14-yl}acetate (CAS 1820687-28-2)
- 2-(5-Amino-2-thiazolyl)ethylamine (CAS 933706-24-2)
- 2-(2,4-Dibromophenoxy)propanoic acid (CAS 6965-70-4)
- 5-Methyl-2-(p-tolyl)-[1,2,4]triazolo[1,5-a]pyrimidine 1-oxide (CAS 54215-27-9)
- (2S,3R)-1-(tert-butoxycarbonyl)-3-hydroxypiperidine-2-carboxylic acid (CAS 870651-00-6)
- tert-butyl N-[(1R,3R,4R)-3-hydroxy-4-sulfanylcyclohexyl]carbamate (CAS 1350636-75-7)
- (S)-1,4-Diaminobicyclo[2.2.2]octan-2-ol hydrochloride (CAS 2144478-61-3)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com