Ethyl 5-chlorofuran-3-carboxylate CAS 189331-55-3
| CAS No. | 189331-55-3 |
| Molecular Formula | C7H7ClO3 |
| Molecular Weight | 174.58 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 5-chlorofuran-3-carboxylate.
Ethyl 5-chlorofuran-3-carboxylate (CAS 189331-55-3) is a high-purity analytical reference standard with the molecular formula C7H7ClO3 and a molecular weight of 174.58 g/mol.
Ethyl 5-chlorofuran-3-carboxylate (C7H7ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Ethyl 5-chlorofuran-3-carboxylate 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 | C7H7ClO3 |
| Molecular Weight | 174.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Halogen Content | Cl-containing |
Related Ethyl Standards
- ethyl 3-chlorofuran-2-carboxylate (CAS 1478503-50-2)
- 2-(2-chlorofuran-3-yl)propanoic acid (CAS 1519129-23-7)
- Ethyl 5-chlorofuran-2-carboxylate (CAS 4301-39-7)
- 3-(3-chlorofuran-2-yl)prop-2-enoic acid (CAS 100949-21-1)
- (2E)-3-(3-chlorofuran-2-yl)prop-2-enoic acid (CAS 2805328-96-3)
- 3-(4-chlorofuran-2-yl)prop-2-enoic acid (CAS 57635-21-9)
- (2E)-3-(5-chlorofuran-2-yl)prop-2-enoic acid (CAS 111252-98-3)
- 4-(5-Chlorofuran-2-yl)but-3-en-2-one (CAS 1344735-48-3)
Recommended Standards
- Ethyl 4-chloro-1H-imidazole-2-carboxylate (CAS 1824094-92-9)
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- (2S)-2-(4-chloropyrazol-1-yl)propanoic acid (CAS 180845-46-9)
- 4-(chloromethyl)-5-methylfuran-2-carboxylic acid (CAS 1934583-44-4)
- 4-(2-Imidazolyl)aniline Dihydrochloride (CAS 1235440-77-3)
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- Methyl (2Z)-2-(benzenesulfonyl)-3-[(4-methylphenyl)amino]prop-2-enoate (CAS 1327176-72-6)
- 2-amino-6-azaspiro[3.4]octan-5-one hydrochloride (CAS 2227206-09-7)
- Thiazole-2,5-diyldimethanol (CAS 326850-61-7)
- 5-Cyclopropyl-1-(2-(2-hydroxyethoxy)ethyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 1285036-25-0)
- (5-Chloro-2,3-dihydrobenzofuran-7-yl)methanol (CAS 1461713-52-9)
- Methyl 5-hydroxy-6-methylnicotinate (CAS 37531-16-1)
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