4-(Naphthalen-2-ylmethylene)-1-phenylpyrazolidine-3,5-dione CAS 820236-91-7
| CAS No. | 820236-91-7 |
| Molecular Formula | C20H14N2O2 |
| Molecular Weight | 314.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(Naphthalen-2-ylmethylene)-1-phenylpyrazolidine-3,5-dione is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(Naphthalen-2-ylmethylene)-1-phenylpyrazolidine-3,5-dione (CAS 820236-91-7) is a high-purity analytical reference standard with the molecular formula C20H14N2O2 and a molecular weight of 314.34 g/mol.
Based on its molecular formula C20H14N2O2, 4-(Naphthalen-2-ylmethylene)-1-phenylpyrazolidine-3,5-dione contains a steroid 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 314.34 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-(Naphthalen-2-ylmethylene)-1-phenylpyrazolidine-3,5-dione 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 | C20H14N2O2 |
| Molecular Weight | 314.34 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Naphthalen Standards
- 5-(Naphthalen-2-yl)-1-phenyl-1h-pyrazole-3-carboxylic acid (CAS 144252-16-4)
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- (E)-2-(naphthalen-2-yl)-3-(2-nitrovinyl)-1H-indole (CAS 94464-02-5)
- 1-(Naphthalen-2-yl)-5-phenyl-1H-pyrazole-3-carboxylic acid (CAS 62160-34-3)
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- 5-(Naphthalen-1-yl)-1-phenyl-1h-pyrazole-3-carboxylic acid (CAS 957320-23-9)
- 2-(Naphthalen-1-yl)-2H-chromene (CAS 477-74-7)
- 2-((5-Ethyl-4-(naphthalen-1-yl)-4H-1,2,4-triazol-3-yl)thio)acetic acid (CAS 886498-37-9)
Recommended Standards
- 4-(Acridin-9-ylamino)benzoic acid (CAS 64894-83-3)
- 4,4'-(1-(Pyridin-3-ylmethyl)-1H-1,2,4-triazole-3,5-diyl)dipyridine (CAS 55391-41-8)
- 4-(4-Methoxyphenyl)-4-oxo-2-{[(pyridin-3-yl)methyl]amino}butanoic acid (CAS 329929-07-9)
- 4,4'-(1-(Pyridin-4-ylmethyl)-1H-1,2,4-triazole-3,5-diyl)dipyridine (CAS 55391-42-9)
- (5E)-4-(4-Methoxyphenyl)-5-{[(4-methylphenyl)methoxy]imino}-2-(1H-pyrrol-1-yl)-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile (CAS 860649-69-0)
- 2-(tert-Butyl)-6-hydroxybenzaldehyde (CAS 344303-52-2)
- Probenecid EP Impurity D (CAS 70190-76-0)
- 1-(Benzo[d]thiazol-2-yl)-3-phenyl-1H-pyrazol-5-ol (CAS 27979-00-6)
- 5-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](methyl)amino}-3-[1-(2,4-dichlorophenyl)-3-methyl-5-oxo-1,2,4-triazolidin-3-yl]-3aH,4H,5H,6H,6aH-pyrrolo[3,4-d][1,2]oxazole-4,6-dione (CAS 317822-47-2)
- 3-(propan-2-yl)piperidin-2-one (CAS 907561-37-9)
- 1-Iodo-4-propoxybenzene (CAS 95306-89-1)
- 1-Decanol (CAS 112-30-1)
- 2-((4-(1H-Pyrrol-1-yl)-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-nitrophenyl)acetamide (CAS 886921-92-2)
- Macrocyclic Peptide flaviviridae Viruses InhibitorDISCONTINUED (CAS 1510840-70-6)
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