3-Chloro-4-iodothiophene CAS 2160743-90-6
| CAS No. | 2160743-90-6 |
| Molecular Formula | C4H2ClIS |
| Molecular Weight | 244.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Chloro-4-iodothiophene (CAS 2160743-90-6), a certified reference material (molecular formula C4H2ClIS, MW 244.48 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, chlorine/iodine substitution, 3-Chloro-4-iodothiophene is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 244.48 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.
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.
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 | C4H2ClIS |
| Molecular Weight | 244.48 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl/I-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- (3-Chloro-4-(2-ethoxyethoxy)phenyl)boronic acid (CAS 279261-91-5)
- 2-Chloro-3-iodothiophene (CAS 60404-17-3)
- 2-Chloro-4-iodothiophene (CAS 60729-39-7)
- 2-Chloro-5-iodothiophene (CAS 28712-49-4)
- 3-Chloro-4,5-diethoxyphenylboronic acid (CAS 2096337-72-1)
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Recommended Standards
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- 1-Ethyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 101830-83-5)
- 2-(4-Phenethyl-phenyl)ethylamine Hydrochloride (CAS 124499-29-2)
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- 2-(Aminomethyl)-1H-imidazole-5-carboxylic acid dihydrochloride (CAS 2044713-62-2)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
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