1-(5-(3-Hydroxy-4-methoxyphenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)ethan-1-one CAS 927140-85-0
| CAS No. | 927140-85-0 |
| Molecular Formula | C18H18N2O3 |
| Molecular Weight | 310.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(5-(3-Hydroxy-4-methoxyphenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)ethan-1-one (C18H18N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
1-(5-(3-Hydroxy-4-methoxyphenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)ethan-1-one (CAS 927140-85-0) is a high-purity analytical reference standard with the molecular formula C18H18N2O3 and a molecular weight of 310.35 g/mol.
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.
CATO manufactures 1-(5-(3-Hydroxy-4-methoxyphenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)ethan-1-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H18N2O3 |
| Molecular Weight | 310.35 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Hydroxy Standards
- 5-(3-Hydroxy-4-methoxyphenyl)-5-methyl-2-phenyl-4,5-dihydropyridazin-3(2H)-one (CAS 1092388-61-8)
- 6-Hydroxy Alosetron HCl (CAS 128486-89-5)
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- 7-Hydroxy Alosetron (CAS 863485-44-3)
- 1-Hydroxy-2-isobutyl-8-methoxyanthracene-9,10-dione (CAS 139565-35-8)
- 2-Butyl-1-hydroxy-8-methoxyanthracene-9,10-dione (CAS 139582-75-5)
- 1-(6-Hydroxy-3-methoxy-2,4-dimethylphenyl)naphthalene-2,3-diol (CAS 1832513-68-4)
- (R)-7-Hydroxy-1,6,6-trimethyl-6,7,8,9-tetrahydrophenanthro[1,2-b]furan-10,11-dione (CAS 97399-71-8)
Recommended Standards
- 1-(4-Fluorobenzyl)-6-(thiophen-2-yl)-1H-imidazo[4,5-b]pyrazine (CAS 827602-56-2)
- 1-(Benzyloxy)-9-cyclopentyl-1H-purin-6(9H)-one (CAS 40281-69-4)
- 1-(4-((1-(2-Hydroxyethyl)-1H-benzo[d]imidazol-2-yl)methoxy)phenyl)ethan-1-one (CAS 891449-68-6)
- 1-(Ethylamino)-4-((2-hydroxyethyl)amino)anthracene-9,10-dione (CAS 61734-59-6)
- 1-(1-Iodoethenyl)-4-methylbenzene (CAS 359887-53-9)
- Triclosan (CAS 3380-34-5)
- (R)-5-(Trifluoromethyl)-2,3-dihydrobenzofuran-3-amine hydrochloride (CAS 1384268-86-3)
- 4-(2,3-Dimethoxyphenyl)-1-butene (CAS 951890-93-0)
- 2-Bromo-3,6-dichloropyridine (CAS 1266119-41-8)
- (5,6,7,8-Tetrahydronaphthalen-1-yl)hydrazine hydrochloride (CAS 54903-88-7)
- 1-(5-bromo-2-methylsulfonyl-phenyl)hexahydropyrimidine-2,4-dione (CAS 2703771-45-1)
- Penicillin V-d5 (CAS 1356837-87-0)
- 1-Bromo-2-(propan-2-yloxy)naphthalene (CAS 791088-70-5)
- Neuropeptide AF (human) (CAS 192387-38-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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