4-Chloro-3-ethyl-5-methylphenol CAS 1125-66-2
| CAS No. | 1125-66-2 |
| Molecular Formula | C9H11ClO |
| Molecular Weight | 170.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Chloro-3-ethyl-5-methylphenol is closely related to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-Chloro-3-ethyl-5-methylphenol (CAS 1125-66-2), a certified reference material (molecular formula C9H11ClO, MW 170.64 g/mol) for analytical method development and quality control.
The molecular framework of 4-Chloro-3-ethyl-5-methylphenol (C9H11ClO) is characterized by a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-Chloro-3-ethyl-5-methylphenol 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 | C9H11ClO |
| Molecular Weight | 170.64 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 1015846-31-7 4-Chloro-2-methyl-5-(propan-2-yl)pyrimidine DTXSID90647968 (CAS 1015846-31-7)
- 5-Chloro-1-N-ethylbenzene-1,2-diamine (CAS 101774-38-3)
- 1-(4-Chloro-3-methylphenyl)ethan-1-ol (CAS 102877-28-1)
- 4-Chloro-6-isopropyl-2-methylpyrimidine (CAS 1030431-70-9)
- 5-Chloro-N-isopropylpyridin-2-amine (CAS 1036489-78-7)
- 4-Chloro-2-isopropyl-5-methylpyrimidine (CAS 1044768-18-4)
- 3-Chloro-4-isopropylphenol (CAS 106396-27-4)
- 2-Chloro-4-methyl-6-(propan-2-yl)pyrimidine (CAS 1082658-26-1)
Recommended Standards
- (2r)-1-Chloro-3-phenylpropan-2-ol (CAS 112009-61-7)
- (1r)-1-(3-Chlorophenyl)propan-1-ol (CAS 112777-67-0)
- 4-Butyl-6-chloropyrimidine (CAS 1105195-64-9)
- 4-Chloro-2-isobutylpyrimidine (CAS 1155594-00-5)
- 2-(M-tolylamino)acetohydrazide (CAS 2371-35-9)
- 2-(4-Bromo-2-fluorophenyl)-3-methylpyridine (CAS 1187169-99-8)
- 5-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)-1-methyl-1H-pyrazole (CAS 1044851-76-4)
- 4-methyl-4-phenylazepane (CAS 933743-33-0)
- 6,7-Dimethoxy-3-methyl-1H-indole (CAS 760213-02-3)
- 1-(4-Ethyl-3-oxo-3,4-dihydroquinoxalin-2-yl)piperidine-3-carboxylic acid (CAS 1242874-77-6)
- 3-(Cyclohexyloxy)-2-(methylthio)phenol (CAS 1243459-44-0)
- 6-Nitroquinoxalin-2(1H)-one (CAS 25652-34-0)
- 6-Hydroxy Monopropylheptylphthalate (CAS 1372605-11-2)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com