7-Hydroxy-1H-phenalen-1-one CAS 21913-87-1
| CAS No. | 21913-87-1 |
| Molecular Formula | C13H8O2 |
| Molecular Weight | 196.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7-Hydroxy-1H-phenalen-1-one is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 7-Hydroxy-1H-phenalen-1-one (CAS 21913-87-1), a certified reference material (molecular formula C13H8O2, MW 196.20 g/mol) for analytical method development and quality control.
The molecular framework of 7-Hydroxy-1H-phenalen-1-one (C13H8O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H8O2 |
| Molecular Weight | 196.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
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Recommended Standards
- 7-Fluorobenzo[b]thiophene-2-carboxylic acid (CAS 550998-67-9)
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- 7-Fluoro-2-mercaptoquinazolin-4(3H)-one (CAS 69661-43-4)
- 9H-Pyrido[3,4-b]indole-1-carbaldehyde (CAS 20127-63-3)
- 2-Methyl-2-(nitroamino)-1-propanol (CAS 1239666-60-4)
- 4-((2-(Cyclohex-1-en-1-yl)ethyl)amino)-4-oxobutanoic acid (CAS 349621-31-4)
- Icaritin Impurity 13 (CAS CATO-C4X-276413)
- 3-(3,4-dichlorophenyl)prop-2-enal (CAS 33802-85-6)
- 4-Chloro-7-methyl-5-(1-methyl-1H-pyrazol-4-yl)imidazo[5,1-f][1,2,4]triazine (CAS 1394034-67-3)
- N,n-dimethyl(piperazin-2-yl)methanamine (CAS 111781-39-6)
- Tert-butyl 5-bromo-7-methyl-1H-indole-1-carboxylate (CAS 1621963-70-9)
- 7-Chloro-3-(methoxycarbonyl)-4-oxo-1,4-dihydroquinoline-2-carboxylic acid (CAS 170143-39-2)
- n-((1h-Benzo[d]imidazol-2-yl)methyl)-N-methylcyclohexanecarboxamide (CAS 1223396-53-9)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
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