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Atomfair 2-(Chloromethyl)thiophene C5H5ClS CAS 765-50-4

2-(Chloromethyl)thiophene (CAS No. 765-50-4) is a high-purity organosulfur compound with the molecular formula C5H5ClS . This versatile reagent features a reactive chloromethyl group (−CH2Cl) bonded to the 2-position of a thiophene ring, making it a valuable intermediate in synthetic organic chemistry. Its molecular weight of 132.61 g/mol and clear to pale yellow liquid appearance (at room temperature) ensure easy handling in laboratory settings. Ideal for nucleophilic substitution reactions, cyclizations, and polymer modifications, this compound is rigorously tested via GC, NMR, and HPLC to meet ≥98% purity standards. Packaged under inert gas in amber glass bottles to prevent degradation, it is…

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Description

2-(Chloromethyl)thiophene (CAS No. 765-50-4) is a high-purity organosulfur compound with the molecular formula C5H5ClS. This versatile reagent features a reactive chloromethyl group (−CH2Cl) bonded to the 2-position of a thiophene ring, making it a valuable intermediate in synthetic organic chemistry. Its molecular weight of 132.61 g/mol and clear to pale yellow liquid appearance (at room temperature) ensure easy handling in laboratory settings. Ideal for nucleophilic substitution reactions, cyclizations, and polymer modifications, this compound is rigorously tested via GC, NMR, and HPLC to meet ≥98% purity standards. Packaged under inert gas in amber glass bottles to prevent degradation, it is suited for pharmaceutical, agrochemical, and materials science research. Store at 2-8°C in a dry, well-ventilated area away from oxidizers.

Properties

  • CAS Number: 765-50-4
  • Complexity: 56
  • IUPAC Name: 2-(chloromethyl)thiophene
  • InChI: InChI=1S/C5H5ClS/c6-4-5-2-1-3-7-5/h1-3H,4H2
  • InChI Key: FUOHKPSBGLXIRL-UHFFFAOYSA-N
  • Exact Mass: 131.9800490
  • Molecular Formula: C5H5ClS
  • Molecular Weight: 132.61
  • SMILES: C1=CSC(=C1)CCl
  • Topological: 28.2
  • Monoisotopic Mass: 131.9800490
  • Synonyms: 2-(Chloromethyl)thiophene, 765-50-4, Thiophene, 2-(chloromethyl)-, 2-(Chloromethyl)-thiophene, EINECS 212-150-6, 7QQ8C6HMR7, DTXSID10227307, DTXCID70149798, 212-150-6, fuohkpsbglxirl-uhfffaoysa-n, 2-chloromethylThiophene, 2-chloromethyl thiophene, 2-Thenyl chloride, MFCD00797972, 2-thienylmethylchloride, 2-chloromethyl-thiophene, 2-thienylmethyl chloride, UNII-7QQ8C6HMR7, SCHEMBL507333, SCHEMBL949672, SCHEMBL3674118, BCP30938, AKOS000262183, CS-W011085, SY274841, DB-014090, NS00037809, EN300-29688, 2-(Chloromethyl)thiophene, 33% w/w solution in toluene, 2-(CHLOROMETHYL)THIOPHENE ((CONTAINS 1% DICYCLOHEXYLAMINE)

Application

2-(Chloromethyl)thiophene serves as a key building block in the synthesis of thiophene-based polymers for conductive materials and organic electronics. It is widely used in pharmaceutical research to create heterocyclic compounds with potential biological activity. Additionally, this compound finds applications in agrochemical development as a precursor for fungicides and insecticides.

Safety and Hazards

GHS Hazard Statements

  • H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H312 (100%): Harmful in contact with skin [Warning Acute toxicity, dermal]
  • H332 (100%): Harmful if inhaled [Warning Acute toxicity, inhalation]

Precautionary Statements

  • P261, P264, P270, P271, P280, P301+P317, P302+P352, P304+P340, P317, P321, P330, P362+P364, and P501

Hazard Classes and Categories

  • Acute Tox. 4 (100%)
  • Acute Tox. 4 (100%)
  • Acute Tox. 4 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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