3-Chloro-2-methylthiophene CAS 17249-83-1
| CAS No. | 17249-83-1 |
| 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 3-Chloro-2-methylthiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-Chloro-2-methylthiophene (CAS 17249-83-1), a certified reference material (molecular formula C5H5ClS, MW 132.61 g/mol) for analytical method development and quality control.
The molecular framework of 3-Chloro-2-methylthiophene (C5H5ClS) is characterized by sulfur-containing functionality, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-Chloro-2-methylthiophene 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.) | 1961 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-3-methylthiophene (CAS 14345-97-2)
- 2-Chloro-5-methylthiophene (CAS 17249-82-0)
- 2-Chloro-4-methylthiophene (CAS 91505-25-8)
- 4-Chloro-2-methylthiophene (CAS 91375-70-1)
- 5-chloro-5-methylhex-1-ene (CAS 116911-84-3)
- 6-Chloro-5-methylhex-1-ene (CAS 1342612-45-6)
- 1-Chloro-1-methylcyclohexane (CAS 931-78-2)
- 1-Chloro-3-ethylpent-2-ene (CAS 761-20-6)
Recommended Standards
- 2-Chloromethylthiophene (CAS 765-50-4)
- 1134E5H2KV 822-87-7 2-Chlorocyclohexanone Cyclohexanone, 2-chloro- alpha-Chlorocyclohexanone 2-Chlorocyclohexonone EINECS 212-505-5 NSC 12439 UNII-1134E5H2KV (CAS 822-87-7)
- 3-(Chloromethyl)thiophene (CAS 2746-23-8)
- Hex-5-enoyl chloride (CAS 36394-07-7)
- 5-Bromo-4-methyl-1,3-thiazole-2-carbonitrile (CAS 859481-85-9)
- Methyl (3-chloroisonicotinoyl)glycinate (CAS 1541551-66-9)
- Pyrazine-2,6-dicarboxylic acid (CAS 940-07-8)
- 6-isopropylpyridazine-3-sulfonyl chloride (CAS 2168286-99-3)
- Benzyl 3-amino-2-(aminomethyl)propanoate (CAS 781610-28-4)
- N-Benzylpentan-1-amine hydrochloride (CAS 90389-36-9)
- 2-Cyano-3-(2,5-dimethoxyphenyl)-N-(4-ethoxyphenyl)propanamide (CAS 1260910-41-5)
- N-{4-[2-(3-Piperidinyl)ethoxy]phenyl}acetamidehydrochloride (CAS 1220016-27-2)
- trans-3,5-dimethylmorpholine (CAS 67804-26-6)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
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