(S)-3-(4-chlorophenyl)cyclopentan-1-one CAS 213964-28-4
| CAS No. | 213964-28-4 |
| Molecular Formula | C11H11ClO |
| Molecular Weight | 194.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (S)-3-(4-chlorophenyl)cyclopentan-1-one.
(S)-3-(4-chlorophenyl)cyclopentan-1-one (CAS 213964-28-4) is a high-purity analytical reference standard with the molecular formula C11H11ClO and a molecular weight of 194.66 g/mol.
Structurally, (S)-3-(4-chlorophenyl)cyclopentan-1-one (C11H11ClO) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 194.66 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C11H11ClO |
| Molecular Weight | 194.66 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2018 |
| Halogen Content | Cl-containing |
Related S Standards
- 2-(4-Chlorophenyl)-2-(ethylamino)acetonitrile (CAS 1018527-18-8)
- 1-(4-Chlorophenyl)cyclobutane-1-carbaldehyde (CAS 106079-12-3)
- 3-(4-Chlorophenyl)cyclopentan-1-one (CAS 115169-77-2)
- 2-(3-Chlorophenyl)-1-cyclopropylethan-1-one (CAS 1175698-01-7)
- 3-[(2-Chlorophenyl)amino]butanenitrile (CAS 1181405-24-2)
- 3-(2-Chlorophenyl)cyclopentan-1-one (CAS 1181601-19-3)
- 2-(2-Chlorophenyl)-4-pentyn-2-ol (CAS 1340170-80-0)
- 2-(3-Chlorophenyl)-4-pentyn-2-ol (CAS 1341969-67-2)
Recommended Standards
- (6-Chloro-7-methyl-1H-indol-2-yl)methanamine (CAS 883529-85-9)
- 1-(1-Chloropropan-2-yl)-1H-benzo[d]imidazole (CAS 324052-74-6)
- (2-Chlorophenyl)(cyclobutyl)methanone (CAS 898790-91-5)
- 1-(2-(4-Chlorophenyl)cyclopropyl)ethan-1-one (CAS 54064-34-5)
- 3-((1-(1-Methyl-1h-pyrazol-4-yl)ethyl)amino)propan-1-ol (CAS 1247986-93-1)
- (1s,3s)-3-(aminomethyl)-N,N-dimethylcyclobutan-1-amine (CAS 1909287-66-6)
- N-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)cyclopropanesulfonamide (CAS 1260151-60-7)
- 1-(2,3-Dihydro-1h-inden-5-yl)-2-(methylthio)ethan-1-one (CAS 1178464-41-9)
- 2-Fluoro-3-hydroxy-6-methoxybenzonitrile (CAS 438497-15-5)
- N-(p-tolyl)-2-((5-(p-tolyl)-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 482614-91-5)
- 2-(4-fluoro-3-methylphenyl)-1H-imidazole hydrochloride (CAS 1333673-84-9)
- hexafluorooxane-2,6-dione (CAS 376-68-1)
- 4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)-1H-pyrazole (CAS 2096995-02-5)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
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