5-(Chloromethyl)furan-2-carboxylic acid CAS 39238-09-0
| CAS No. | 39238-09-0 |
| Molecular Formula | C6H5ClO3 |
| Molecular Weight | 160.56 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 5-(Chloromethyl)furan-2-carboxylic acid.
5-(Chloromethyl)furan-2-carboxylic acid (CAS 39238-09-0), molecular formula C6H5ClO3 and molecular weight 160.56 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H5ClO3, 5-(Chloromethyl)furan-2-carboxylic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 160.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C6H5ClO3 |
| Molecular Weight | 160.56 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.) | 1968 |
| Halogen Content | Cl-containing |
Related Chloromethyl Standards
- 2-(chloromethyl)furan-3-carboxylic acid (CAS 1935087-38-9)
- 2-(chloromethyl)-5-hydroxy-4H-pyran-4-one (CAS 7559-81-1)
- 4-(chloromethyl)furan-2-carboxylic acid (CAS 99602-00-3)
- 5-(Chloromethyl)isoxazole-3-carboxamide (CAS 203792-29-4)
- 5-(Chloromethyl)pyrimidine-2,4(1H,3H)-dione (CAS 3590-48-5)
- 5-(Chloromethyl)-2-fluoro-phenol (CAS 1261615-37-5)
- 5-(Chloromethyl)-3-methoxy-1-methyl-1H-pyrazole (CAS 1823909-96-1)
- 5-(Chloromethyl)-1-(propan-2-yl)-1h-1,2,3,4-tetrazole (CAS 187739-97-5)
Recommended Standards
- 4-Chloropyrazole-1-acetic Acid (CAS 32089-46-6)
- 4-Chloro-6-methoxy-1,3,5-triazin-2-amine (CAS 7254-11-7)
- 4-Chloro-5-methylisoxazole-3-carboxamide (CAS 85608-59-9)
- 5-Amino-3-methylisoxazole-4-carbonyl chloride (CAS 219938-18-8)
- 6,8-Dibromo-2-ethylquinazolin-4(1H)-one (CAS 88624-85-5)
- 5,5-Dimethyl-1,4,5,6-tetrahydrocyclopenta[b]pyrrole-2-carboxylic acid (CAS 1936533-04-8)
- (3-{[(2-Methylphenyl)sulfanyl]methyl}-1-benzofuran-2-yl)(phenyl)methanone (CAS 338424-58-1)
- Fingolimod impurity 23 (CAS 51326-38-6)
- N-ethyl-2-(4-nitrophenoxy)acetamide (CAS 20916-15-8)
- 3',5-Dimethyl-[3,5'-biisoxazole]-4'-carbonyl chloride (CAS 306936-71-0)
- Chlorzoxazone Impurity 6 (CAS CATO-C4X-27776)
- 7-Chloro-2,3-dihydro-1-oxopyrrolo[2,1-b]benzothiazole-3a(1H)-carboxylic acid (CAS 1236270-06-6)
- 2-Ethoxy-nicotinic acid (CAS 35969-54-1)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
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