4-Chloro-2,5-difluorobenzoic acid ethyl ester CAS 879093-03-5
| CAS No. | 879093-03-5 |
| Molecular Formula | C9H7ClF2O2 |
| Molecular Weight | 220.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, 4-Chloro-2,5-difluorobenzoic acid ethyl ester 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-Chloro-2,5-difluorobenzoic acid ethyl ester (CAS 879093-03-5) is a high-purity analytical reference standard with the molecular formula C9H7ClF2O2 and a molecular weight of 220.60 g/mol.
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-2,5-difluorobenzoic acid ethyl ester 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 | 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.) | 1987 |
| Halogen Content | F/Cl-containing |
Related Chloro Standards
- Ethyl 3-chloro-2,4-difluorobenzoate (CAS 1097886-66-2)
- 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)
Recommended Standards
- 3-Chloro-5-(1,1-difluoroethyl)benzoic acid (CAS 2438162-39-9)
- 4-Ethoxy-2,3-difluorobenzoyl chloride (CAS 761459-04-5)
- 2-Chloro-1-(2,6-difluoro-4-methoxyphenyl)ethan-1-one (CAS 746630-09-1)
- Ethyl 2-chloro-3,6-difluorobenzoater (CAS 773135-52-7)
- m-Quinquiphenyl (CAS 16716-13-5)
- 1-(1-Boc-3-azetidinyl)pyrrolidine (CAS 1019008-21-9)
- 3-[(2,4-Dichlorophenyl)methyl]-6-[(4-methylphenyl)sulfanyl]pyridazine (CAS 241488-47-1)
- N-(2,5-dichlorophenyl)methanesulfonamide (CAS 1078627-71-0)
- 3-Ethyl-1-(2,2,2-trifluoroacetyl)pyrrolidine-3-carboxylic acid (CAS 1340102-10-4)
- Methyl n-[4-(aminomethyl)phenyl]carbamate (CAS 1019390-39-6)
- (2Z)-2-Amino-3-[(E)-({2-[(4-methylphenyl)sulfanyl]-5-nitrophenyl}methylidene)amino]but-2-enedinitrile (CAS 1024776-21-3)
- 8-p-Coumaroylharpagide (CAS 87686-74-6)
- tert-Butyl N-(3-methylazetidin-3-yl)-N-(methyl)carbamate (CAS 943060-83-1)
- Peptide 438 (CAS CATO-CPTD788438)
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