2-Chloromethylthiophene CAS 765-50-4
| CAS No. | 765-50-4 |
| Molecular Formula | C5H5ClS |
| Molecular Weight | 132.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 132.61 g/mol gives 2-Chloromethylthiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-Chloromethylthiophene (CAS 765-50-4), a certified reference material (molecular formula C5H5ClS, MW 132.61 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, chlorine substitution, 2-Chloromethylthiophene is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 132.61 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.
CATO manufactures 2-Chloromethylthiophene 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 | C5H5ClS |
| Molecular Weight | 132.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Recommended Standards
- 2-Chloro-4-methylthiophene (CAS 91505-25-8)
- 3-(Chloromethyl)thiophene (CAS 2746-23-8)
- 3-Chloro-2-methylthiophene (CAS 17249-83-1)
- 4-Chloro-2-methylthiophene (CAS 91375-70-1)
- 6-Oxa-1-azaspiro[3.3]heptane trifluoroacetic acid (CAS 1909347-88-1)
- 2-Bromo-5-(pyrrolidin-1-yl)pyridine (CAS 1142197-42-9)
- 4-Cyclopropoxy-3-isopropylbenzaldehyde (CAS 1243384-55-5)
- 4-Chloro-2-methoxy-7-methyl-5,6,7,8-tetrahydroquinazoline (CAS 2386463-73-4)
- 1-(6-Chloro-3-hydroxypyridin-2-yl)ethan-1-one (CAS 1186542-46-0)
- Propyl 2-amino-5,6,7,8-tetrahydro-4H-cyclohepta-[b]thiophene-3-carboxylate (CAS 351982-19-9)
- 5-Methyl-1H-pyrazole-3-carboxylic acid (CAS 402-61-9)
- (S)-1-(4-Chloro-2-methylphenyl)ethanamine hydrochloride (CAS 1391443-56-3)
- 2-Methyl-6-phenylthieno[3,2-d]pyrimidin-4-ol (CAS 156424-47-4)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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