Methyl 4-chlorothiophene-3-carboxylate CAS 88770-14-3
| CAS No. | 88770-14-3 |
| Molecular Formula | C6H5ClO2S |
| Molecular Weight | 176.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Methyl 4-chlorothiophene-3-carboxylate (CAS 88770-14-3) is a high-purity analytical reference standard with the molecular formula C6H5ClO2S and a molecular weight of 176.62 g/mol.
Based on its molecular formula C6H5ClO2S, Methyl 4-chlorothiophene-3-carboxylate contains a sulfone group, 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 176.62 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.
CATO manufactures Methyl 4-chlorothiophene-3-carboxylate 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 | C6H5ClO2S |
| Molecular Weight | 176.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 4-Chlorothiophene-2-carbohydrazide (CAS 1263212-33-4)
- 3-Chlorothiophene-2-carbohydrazide (CAS 478483-31-7)
- 5-Chlorothiophene-2-carbohydrazide (CAS 351983-31-8)
- Methyl 2-chlorothiophene-3-carboxylate (CAS 76360-42-4)
- Methyl 3-chlorothiophene-2-carboxylate (CAS 88105-17-3)
- 5-Chlorothiophene-2-carbothioamide (CAS 85347-12-2)
- 5-Chlorothiophene-2,4-dicarbaldehyde (CAS 65762-93-8)
- methyl 4-chlorothiophene-2-carboxylate (CAS 88105-19-5)
Recommended Standards
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- 3-(1-Methoxyethyl)azetidine Hydrochloride (CAS 1781791-41-0)
- 4-Chloro-2-iodo-5-(trifluoromethyl)aniline (CAS 852569-36-9)
- 4-Methyl-5-thioxo-4,5-dihydro-1H-1,2,4-triazole-3-carboxamide (CAS 61320-82-9)
- 4-Chloro-N-(2-(3,5-dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl)-N-ethylbenzenesulfonamide (CAS 1325305-88-1)
- (4-Iodo-1H-pyrazol-3-yl)methanol (CAS 1354705-74-0)
- 6-Iodo-8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2h-pyrano[3,2-b]pyridine (CAS 1356165-84-8)
- Semaglutide impurity 86 (CAS CATO-C4X-222686)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com