Ethyl4-(4-chloro-1-oxobutyl)-a,a-dimethylbenzeneacetate CAS 76811-97-7
| CAS No. | 76811-97-7 |
| Molecular Formula | C16H21ClO3 |
| Molecular Weight | 296.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl4-(4-chloro-1-oxobutyl)-a,a-dimethylbenzeneacetate (CAS 76811-97-7), molecular formula C16H21ClO3 and molecular weight 296.79 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl4-(4-chloro-1-oxobutyl)-a,a-dimethylbenzeneacetate (C16H21ClO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 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 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.
As a certified reference material (CRM), Ethyl4-(4-chloro-1-oxobutyl)-a,a-dimethylbenzeneacetate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H21ClO3 |
| Molecular Weight | 296.79 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
Related Ethyl Standards
- Ethyl (4-chloro-2-cyclohexylphenoxy)acetate (CAS 1011486-37-5)
- 2-Chloro-N-(4-(morpholinomethyl)benzyl)propanamide (CAS 1097816-84-6)
- 1-Chloro-N,N-dimethyl-3-m-tolylisoquinolin-7-amine (CAS 1248621-84-2)
- N-[(2-Chloro-7-methylquinolin-3-yl)methyl]-4-methylaniline (CAS 1268809-92-2)
- (E)-1-[(1-Chloro-3,4-dihydronaphthalen-2-yl)methylidene]-2-(4-methylphenyl)hydrazine (CAS 1351286-49-1)
- Methyl 4-chloro-3-(2-methoxyethoxy)-5-(methylthio)thiophene-2-carboxylate (CAS 1707609-79-7)
- N-(2-chloro-4-pivaloylpyridin-3-yl)pivalamide (CAS 1951444-95-3)
- 3-Chloro-2,2-dimethyl-N-(4-morpholinophenyl)propanamide (CAS 250714-76-2)
Recommended Standards
- Ethyl 8-(4-chlorophenyl)-8-oxooctanoate (CAS 198064-91-4)
- Methyl 8-chloro-4H-thieno[3,2-c]thiochromene-2-carboxylate (CAS 255378-11-1)
- Ethyl 8-(3-chlorophenyl)-8-oxooctanoate (CAS 898752-20-0)
- N-benzyl-1-(2-chloro-8-methylquinolin-3-yl)methanamine (CAS 606095-53-8)
- 5-Methyl-1-phenyl-1H-pyrrolo[3,2-c]quinolin-4(5H)-one (CAS 88264-01-1)
- (3-Cyclopropoxypyridine-2,5-diyl)dimethanamine (CAS 1243386-87-9)
- 1-Ethyl-4-(methoxycarbonyl)-1H-imidazole-5-carboxylic acid (CAS 1707571-79-6)
- 2-(4-(Difluoromethyl)-2-methoxy-5-methylpyridin-3-yl)acetonitrile (CAS 1806033-78-2)
- 1-(2-Bromo-3,3,3-trifluoropropyl)piperidine (CAS 121217-46-7)
- 6-(Furan-2-yl)-1-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 900137-06-6)
- Triisopropanolamine (mixture of isomer) (CAS 122-20-3)
- (2R,3S)-2-[(1Z)-1-Buten-1-Yl]-3-Ethyl-1,1-Difluorocyclopropane (CAS 133895-54-2)
- N-cyclopropyl-4-methylcyclohexan-1-amine hydrochloride (CAS 1177271-63-4)
- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com