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Atomfair 3,4-Dibromo-2,5-dimethylthiophene C6H6Br2S CAS 39129-54-9

3,4-Dibromo-2,5-dimethylthiophene (CAS No. 39129-54-9) is a high-purity brominated thiophene derivative with the molecular formula C6H6Br2S . This compound is a valuable intermediate in organic synthesis and materials science, particularly in the development of conductive polymers, pharmaceuticals, and agrochemicals. Its unique structure, featuring two bromine atoms at the 3,4-positions and methyl groups at the 2,5-positions, makes it an excellent building block for cross-coupling reactions such as Suzuki, Stille, and Sonogashira couplings. With a purity of ≥98% (GC), this product is rigorously tested to ensure consistency and performance in research and industrial applications. Proper handling under inert conditions is recommended due to…

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Description

3,4-Dibromo-2,5-dimethylthiophene (CAS No. 39129-54-9) is a high-purity brominated thiophene derivative with the molecular formula C6H6Br2S. This compound is a valuable intermediate in organic synthesis and materials science, particularly in the development of conductive polymers, pharmaceuticals, and agrochemicals. Its unique structure, featuring two bromine atoms at the 3,4-positions and methyl groups at the 2,5-positions, makes it an excellent building block for cross-coupling reactions such as Suzuki, Stille, and Sonogashira couplings. With a purity of ≥98% (GC), this product is rigorously tested to ensure consistency and performance in research and industrial applications. Proper handling under inert conditions is recommended due to its sensitivity to moisture and light. Available in various packaging options to suit laboratory-scale and bulk requirements.

Properties

  • CAS Number: 39129-54-9
  • Complexity: 95.2
  • IUPAC Name: 3,4-dibromo-2,5-dimethyl-thiophene
  • InChI: InChI=1S/C6H6Br2S/c1-3-5(7)6(8)4(2)9-3/h1-2H3
  • InChI Key: NWYUIYYDNDZXBK-UHFFFAOYSA-N
  • Exact Mass: 269.85365
  • Molecular Formula: C6H6Br2S
  • Molecular Weight: 269.99
  • SMILES: CC1=C(C(=C(S1)C)Br)Br
  • Topological: 28.2
  • Monoisotopic Mass: 267.85570
  • Synonyms: 3,4-dibromo-2,5-dimethylthiophene, 39129-54-9, MFCD08695981, SCHEMBL4100396, NWYUIYYDNDZXBK-UHFFFAOYSA-N, PBA12954, AKOS000282327, AS-61484, DA-06226, SY125663, CS-0037620, EN300-264565, W10472, Z2889976897

3,4-Dibromo-2,5-dimethylthiophene is widely used as a precursor in the synthesis of π-conjugated polymers for organic electronics, including OLEDs and photovoltaic devices. Its brominated structure facilitates efficient polymerization via metal-catalyzed cross-coupling reactions. Researchers also employ it in medicinal chemistry for the development of bioactive heterocycles. Additionally, it serves as a key intermediate in agrochemical research for crop protection compounds.

Safety and Hazards

GHS Hazard Statements

  • H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

  • P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

  • Acute Tox. 4 (100%)
  • Skin Irrit. 2 (100%)
  • Eye Irrit. 2A (100%)
  • STOT SE 3 (100%)

If you are interested or have any questions, please contact us at support@atomfair.com

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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