1-(5-Chloro-2-methoxy-4-methylphenyl)ethan-1-one CAS 28478-40-2
| CAS No. | 28478-40-2 |
| Molecular Formula | C10H11ClO2 |
| Molecular Weight | 198.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(5-Chloro-2-methoxy-4-methylphenyl)ethan-1-one is closely related to a carboxylic acid group, 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.
1-(5-Chloro-2-methoxy-4-methylphenyl)ethan-1-one (CAS 28478-40-2), molecular formula C10H11ClO2 and molecular weight 198.65 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 1-(5-Chloro-2-methoxy-4-methylphenyl)ethan-1-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 198.65 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 1-(5-Chloro-2-methoxy-4-methylphenyl)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 | C10H11ClO2 |
| Molecular Weight | 198.65 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
Related Chloro Standards
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- 5-Chloro-6-methyl-3-(pyrrolidin-1-yl)-1,2,4-triazine (CAS 1023818-03-2)
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Recommended Standards
- 1-(5-Chloro-2-hydroxyphenyl)butan-1-one (CAS 51978-33-7)
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- 1-(5-Chloro-2-hydroxyphenyl)-2-methylpropan-1-one (CAS 90743-04-7)
- 1-(6-Chloropyrimidin-4-yl)pyrrolidin-3-amine (CAS 945896-22-0)
- Mannopentaose (CAS 70281-35-5)
- 2-Chloro-3-(methylamino)isonicotinaldehyde (CAS 1289148-11-3)
- N-(4-Amino-2,6-dichlorophenyl)-2-(methylsulfonyl)acetamide hydrochloride (CAS 2137760-81-5)
- tert-Butyl 1-aminocyclopropane-1-carboxylate hydrochloride (CAS 76126-47-1)
- 4-(tert-Butoxy)pyridin-2-amine (CAS 1446416-40-5)
- 3-(4,4-Difluorocyclohexyl)propan-1-ol (CAS 1782085-58-8)
- 4-Isopropyl-N-(1,3,4-thiadiazol-2-yl)benzamide (CAS 544690-34-8)
- 2-Bromo-1-chloro-4-(difluoromethyl)benzene (CAS 1261495-96-8)
- (2R,3S,4R,5R,6S)-5-Acetamido-2-(acetoxymethyl)-6-((4-methyl-2-oxo-2H-chromen-7-yl)oxy)tetrahydro-2H-pyran-3,4-diyl diacetate (CAS 38971-29-8)
- Neuropeptide SF (human) (CAS 192387-39-6)
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