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Atomfair 2-Bromothiophene C4H3BrS CAS 1003-09-4

2-Bromothiophene (CAS No. 1003-09-4) is a high-purity brominated heterocyclic compound with the molecular formula C4H3BrS . This organobromine derivative of thiophene is widely utilized in organic synthesis, pharmaceutical research, and material science due to its reactive bromine substituent at the 2-position. Our product is rigorously tested to ensure >98% purity (GC), with trace metals and moisture levels minimized for sensitive applications. Supplied in amber glass bottles under inert gas to prevent degradation, it is ideal for cross-coupling reactions (e.g., Suzuki, Stille) and as a building block for conductive polymers, liquid crystals, and agrochemicals. Available in quantities from 1g to 1kg…

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Description

2-Bromothiophene (CAS No. 1003-09-4) is a high-purity brominated heterocyclic compound with the molecular formula C4H3BrS. This organobromine derivative of thiophene is widely utilized in organic synthesis, pharmaceutical research, and material science due to its reactive bromine substituent at the 2-position. Our product is rigorously tested to ensure >98% purity (GC), with trace metals and moisture levels minimized for sensitive applications. Supplied in amber glass bottles under inert gas to prevent degradation, it is ideal for cross-coupling reactions (e.g., Suzuki, Stille) and as a building block for conductive polymers, liquid crystals, and agrochemicals. Available in quantities from 1g to 1kg with customizable packaging.

  • IUPAC Name: 2-bromothiophene
  • Synonyms: 2-Thienyl bromide, Thiophene, 2-bromo-
  • Molecular Weight: 163.03 g/mol
  • Boiling Point: 150-152°C
  • Density: 1.684 g/cm3 at 25°C
  • Storage: 2-8°C under nitrogen

Properties

  • CAS Number: 1003-09-4
  • Complexity: 46.8
  • IUPAC Name: 2-bromothiophene
  • InChI: InChI=1S/C4H3BrS/c5-4-2-1-3-6-4/h1-3H
  • InChI Key: TUCRZHGAIRVWTI-UHFFFAOYSA-N
  • Exact Mass: 161.91388
  • Molecular Formula: C4H3BrS
  • Molecular Weight: 163.04
  • SMILES: C1=CSC(=C1)Br
  • Topological: 28.2
  • Monoisotopic Mass: 161.91388
  • Physical Description: Clear slightly brown liquid with a stench;
  • Synonyms: 2-BROMOTHIOPHENE, 1003-09-4, Thiophene, 2-bromo-, 2-Thienyl bromide, GFF929NUW7, NSC 4456, NSC-4456, EINECS 213-699-4, DTXSID4061389, 2Thienyl bromide, Thiophene, 2bromo, DTXCID7032509, 213-699-4, inchi=1/c4h3brs/c5-4-2-1-3-6-4/h1-3, Thiophene, bromo-, Bromothiophene, 2-bromo-thiophene, 2-bromo thiophene, MFCD00005417, 60326-18-3, Thienyl bromide, 5-bromothiophene, NSC4456, 5-bromo-thiophene, 2-bromanylthiophene, 2-Bromothiophene, 98%, UNII-GFF929NUW7, SCHEMBL4057, SCHEMBL22395, BIDD:GT0231, SCHEMBL195893, SCHEMBL195925, SCHEMBL4767521, BCP21550, AC-194, SBB003931, AKOS000121588, CS-W020109, DS-1962, FB02219, PS-5772, DB-020745, B0941, NS00022968, ST50406225, EN300-20745, D77872, A800095, Q17487944, F0001-0036

Application

2-Bromothiophene serves as a key intermediate in the synthesis of thiophene-based pharmaceuticals, including antipsychotic and antiviral agents. It is extensively used in palladium-catalyzed cross-coupling reactions to create conjugated polymers for organic electronics (OLEDs, OFETs). In material science, it acts as a precursor for sulfur-containing liquid crystals and corrosion inhibitors. Researchers also employ it to modify surface properties of nanomaterials and as a ligand in catalytic systems.

Safety and Hazards

GHS Hazard Statements

  • H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]
  • H300 (74.4%): Fatal if swallowed [Danger Acute toxicity, oral]
  • H301 (25.6%): Toxic if swallowed [Danger Acute toxicity, oral]
  • H310 (26.9%): Fatal in contact with skin [Danger Acute toxicity, dermal]
  • H315 (29.5%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H318 (70.5%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H319 (29.5%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H330 (24.4%): Fatal if inhaled [Danger Acute toxicity, inhalation]

Precautionary Statements

  • P210, P233, P240, P241, P242, P243, P260, P262, P264, P264+P265, P270, P271, P280, P284, P301+P316, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P320, P321, P330, P332+P317, P337+P317, P361+P364, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501

Hazard Classes and Categories

  • Flam. Liq. 3 (100%)
  • Acute Tox. 2 (74.4%)
  • Acute Tox. 3 (25.6%)
  • Acute Tox. 2 (26.9%)
  • Skin Irrit. 2 (29.5%)
  • Eye Dam. 1 (70.5%)
  • Eye Irrit. 2 (29.5%)
  • Acute Tox. 2 (24.4%)

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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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