Tetrabromothiophene TCI T1149

Chemical Identity

CAS No.: 3958-03-0
PubChem: CID 77565·SID 87576937
Formula: C4Br4S
Molecular weight: 399.73 g/mol
Purity: >99.0%(GC)
Reference databases: ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 2,3,4,5-tetrabromothiophene
SMILES: C1(=C(SC(=C1Br)Br)Br)Br
InChIKey: AVPWUAFYDNQGNZ-UHFFFAOYSA-N

Rp 662.550,00

~~Rp 478.800,00~~ Rp 662.550,00

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Berat 5g 25g

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Tetrabromothiophene is a thiophene derivative in which all four carbon positions of the ring carry a bromine atom. It belongs to the halogenated heterocyclic building blocks used in organic synthesis, especially for assembling thiophene-based molecules and polymers. This TCI T1149 product is useful for researchers who need a thiophene core with many reactive sites that can be modified step by step through organometallic or coupling chemistry. In the laboratory it serves as a versatile starting material from which a wide range of substituted thiophenes can be prepared.

The four bromine atoms on the thiophene ring do not all react in the same way. The alpha positions behave differently from the beta positions, and this difference in reactivity allows selective functionalization. Typical routes include halogen-metal exchange and palladium-catalyzed coupling. A single starting compound can therefore lead to many thiophene derivatives with controlled substitution patterns. This is what makes it attractive for organic materials chemistry, where thiophene is an important unit in organic semiconductors and carbon-based electronic materials.

In Indonesian laboratories, Tetrabromothiophene is relevant to research groups working in organic synthesis, conjugated polymer chemistry, and organic electronic materials. It suits teams that build custom thiophene-based structures rather than buying finished derivatives. The 5g and 25g pack sizes suit both small exploratory work and larger development projects, so a laboratory can choose the quantity that matches its scale of synthesis.

TCI brochures (PDF)

Thiophenes 2026-06-29 · p. 6

Related TCI products

Synthesis of polysubstituted thiophenes: the four bromine atoms give several sites for stepwise substitution, so chemists can build thiophene derivatives with carefully controlled substitution patterns from one starting material.
Halogen-metal exchange reactions: the different reactivity of alpha and beta bromine atoms allows selective exchange with organometallic reagents, which opens routes to specifically functionalized thiophene intermediates.
Palladium-catalyzed coupling chemistry: the brominated thiophene core works as a substrate for coupling reactions that attach aryl or other groups, making it suitable for constructing larger conjugated molecules.
Conjugated polymer research: thiophene is a key repeating unit in many conjugated polymers, and this multi-halogenated monomer precursor supports the design of new thiophene-based polymer architectures.
Organic electronic materials development: research groups exploring organic semiconductors and carbon-based electronic materials can use this building block to prepare tailored thiophene units for new material candidates.

Brand	TCI
CAS number	3958-03-0
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Heterocyclic Building Blocks
Pack sizes	5g and 25g
Physical form	—
Storage	keep tightly closed in a cool, dry place, and follow the supplier's safety data sheet for exact conditions

Product code: T1149

Store Tetrabromothiophene in its original tightly closed container, in a cool, dry and well-ventilated place away from direct sunlight, heat sources and incompatible materials such as strong oxidizers. Always check the supplier's safety data sheet for the exact storage conditions of this product. Use glass or other chemically compatible containers for any transfer, and label them clearly. As with other halogenated organic compounds, handle it in a fume hood and wear a laboratory coat, chemical-resistant gloves and safety glasses. Avoid inhalation and skin or eye contact. Dispose of waste according to local regulations and your institution's procedures for halogenated organic waste.

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