Ethyl 3-chloro-2,4-difluorobenzoate CAS 1097886-66-2
| CAS No. | 1097886-66-2 |
| Molecular Formula | C9H7ClF2O2 |
| Molecular Weight | 220.60 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 Ethyl 3-chloro-2,4-difluorobenzoate.
Ethyl 3-chloro-2,4-difluorobenzoate (CAS 1097886-66-2), molecular formula C9H7ClF2O2 and molecular weight 220.60 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, Ethyl 3-chloro-2,4-difluorobenzoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), Ethyl 3-chloro-2,4-difluorobenzoate 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 | C9H7ClF2O2 |
| Molecular Weight | 220.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1989 |
| Halogen Content | F/Cl-containing |
Related Ethyl Standards
- 1-(4-Chloro-2-(difluoromethoxy)phenyl)ethanone (CAS 110760-05-9)
- 2-Chloro-1-(4-(difluoromethoxy)phenyl)ethanone (CAS 1214341-01-1)
- Ethyl 5-chloro-2,3-difluorobenzoate (CAS 1214361-29-1)
- 2-Chloro-1-(3-(difluoromethoxy)phenyl)ethan-1-one (CAS 1214377-17-9)
- Ethyl 5-chloro-2,4-difluorobenzoate (CAS 1239592-10-9)
- Methyl 2-chloro-2-(2,4-difluorophenyl)acetate (CAS 1247585-58-5)
- 1-[5-chloro-2-(difluoromethoxy)phenyl]ethan-1-one (CAS 1250157-06-2)
- 3-Chloro-4-(difluoromethoxy)benzimidamide (CAS 1250558-67-8)
Recommended Standards
- 3-Ethoxy-2,6-difluorobenzoyl chloride (CAS 1092461-27-2)
- 3-Ethoxy-2,4-difluorobenzoyl chloride (CAS 1017779-90-6)
- 2-Ethoxy-3,5-difluorobenzoyl chloride (CAS 1017779-72-4)
- 4-Ethoxy-3,5-difluorobenzoyl chloride (CAS 1017779-21-3)
- 3-Piperidinylmethyl cyclopentanecarboxylatehydrochloride (CAS 1220021-05-5)
- 3-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-7-carbonitrile (CAS 2103353-09-7)
- 4,8-Diaminoquinoline-2-carboxylic acid (CAS 495409-11-5)
- Ketorolac Impurity 27 (CAS 113502-54-8)
- N'1-[(2-chloro-6-methylpyrimidin-4-yl)carbonyl]-2-(trifluoromethoxy)benzene-1-carbohydrazide (CAS 266337-54-6)
- ethyl (4Z,7Z,10Z,13Z,16E,19Z)-docosa-4,7,10,13,16,19-hexaenoate (CAS CATO-C4X-280637)
- Decabromobiphenyl (CAS 13654-09-6)
- Vildagliptin Impurity 99 (CAS CATO-C4X-110099)
- (2R,3R,4R)-2-(((tert-butyldimethylsilyl)oxy)methyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate (CAS 136656-49-0)
- Q-Peptide trifluoroacetate salt (CAS 1361235-89-3)
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