4-chlorofuran-2-carboxylic acid CAS 4303-17-7
| CAS No. | 4303-17-7 |
| Molecular Formula | C5H7ClO3 |
| Molecular Weight | 150.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 150.56 g/mol gives 4-chlorofuran-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-chlorofuran-2-carboxylic acid (CAS 4303-17-7), a certified reference material (molecular formula C5H7ClO3, MW 150.56 g/mol) for analytical method development and quality control.
4-chlorofuran-2-carboxylic acid (C5H7ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H7ClO3 |
| Molecular Weight | 150.56 g/mol |
| 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 | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Related chlorofuran Standards
- 1-(5-Chlorofuran-2-yl)ethanol (CAS 1644345-92-5)
- 4-chlorofuran-3-carboxylic acid (CAS 116779-80-7)
- 5-chlorofuran-3-carboxylic acid (CAS 116779-81-8)
- 2-Chlorofuran-3-carboxylic acid (CAS 31491-45-9)
- 3-chlorofuran-2-carboxylic acid (CAS 66204-31-7)
- 5-Chlorofuran-2-carboxylic Acid (CAS 618-30-4)
- (2-Chlorofuran-3-yl)boronic acid (CAS 1234706-19-4)
- 2-(5-Chlorofuran-2-yl)ethan-1-amine (CAS 910391-20-7)
Recommended Standards
- 3-Chloro-2-oxopropyl acetate (CAS 40235-68-5)
- 5-Chloro-4-oxopentanoic acid (CAS 60254-71-9)
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- 5-methyl-1,3,4-oxadiazole-2-carbonyl chloride (CAS 889131-28-6)
- N1-Methyl-N1-(1-methylpiperidin-3-yl)ethane-1,2-diamine (CAS 1353984-80-1)
- 2-Bromo-5-iodo-3-methoxypyridine (CAS 1131335-43-7)
- (R)-2-(4-Bromothiophen-2-yl)-4-(tert-butoxy)-4-oxobutanoic acid (CAS 2615912-71-3)
- 2-Chloro-1-ethoxy-3-fluoro-4-methylbenzene (CAS 1804410-00-1)
- 2,3-Dibromo-4,5-difluorophenylacetic acid (CAS 1804414-20-7)
- 2-(3,5-Dichlorobenzoyl)pyridine (CAS 898780-36-4)
- 8-Fluoro-3-azabicyclo[3.2.1]octane hydrochloride (CAS 1523618-19-0)
- Delapril (CAS 83435-66-9)
- N-(2,3-Dihydrobenzofuran-5-yl)acetamide (CAS 81926-25-2)
- D-Tyr10-Tirzepatide (CAS CATO-CPTD788922)
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