1,3,4,6-Tetrathiapentalene-2,5-dione TCI T1132

Chemical Identity

CAS No.: 64394-45-2
PubChem: CID 555056·SID 87576922
Formula: C4O2S4
Molecular weight: 208.3 g/mol
Purity: >98.0%(HPLC)
Reference databases: ChemSpider·ECHA·Wikipedia

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: [1,3]dithiolo[4,5-d][1,3]dithiole-2,5-dione
SMILES: C12=C(SC(=O)S1)SC(=O)S2
InChIKey: XMQJUIFJLYEFQR-UHFFFAOYSA-N

Rp 2.809.800,00

~~Rp 1.980.300,00~~ Rp 2.809.800,00

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TCI T1132, 1,3,4,6-Tetrathiapentalene-2,5-dione (CAS 64394-45-2), is a sulfur-rich heterocyclic compound supplied as a heterocyclic building block. Its fused two-ring framework contains four sulfur atoms, which makes it of particular interest to chemists working on sulfur-based organic materials. In the laboratory it serves as a starting material and synthetic intermediate, giving researchers a defined structural core from which more elaborate sulfur-containing molecules can be assembled step by step.

The properties that make this compound a preferred choice come from its structure. The high sulfur content of the framework gives it distinctive electronic character, and the carbonyl groups at both ends of the molecule provide reactive sites for further transformations. Compounds of this type are often used as precursors in preparing electron-donor molecules for research on organic conductors, and the tetrathiapentalene skeleton is related to donor families well known in molecular conductor chemistry. Researchers therefore choose it when they want to build sulfur-rich π systems with good structural control, using the carbonyl groups as synthetic handles.

In Indonesian laboratories, the product is offered in 1 g, 5 g, and 25 g pack sizes, so the quantity can be matched to the scale of the work, from initial reaction screening through to multi-step synthesis. It suits organic chemistry research groups and teams working on functional materials, particularly where sulfur-containing heterocycles are a focus. Reliable supply of a recognised TCI reagent helps laboratories plan their synthetic programmes with confidence.

TCI brochures (PDF)

Molecular Conductors 2025-11-13 · p. 6

Related TCI products

Heterocyclic building block chemistry: the fused ring skeleton with four sulfur atoms gives synthetic chemists a ready-made core for constructing more complex sulfur-containing heterocyclic compounds.
Precursor for electron-donor molecules: compounds of this type are commonly used to prepare donor molecules for organic conductor research, and the tetrathiapentalene framework relates directly to that family.
Sulfur-rich organic materials research: the many sulfur atoms impart distinctive electronic properties, which makes the compound well suited to groups investigating functional organic materials built on π systems.
Carbonyl-based functional group transformations: the carbonyl groups at both ends of the molecule offer reactive positions, so chemists can modify the structure further and explore a range of follow-up reactions.
Reaction screening and staged synthesis: the 1 g, 5 g, and 25 g pack sizes allow small exploratory trials as well as larger scale-up work within the same synthetic programme.

Brand	TCI
CAS number	64394-45-2
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Heterocyclic Building Blocks
Pack sizes	1 g, 5 g, and 25 g
Physical form	—
Storage	keep in the original tightly closed container and follow the supplier's label and safety data sheet

Product code: T1132

Store the material in its original, tightly closed container in a cool, dry place away from direct sunlight, heat, and incompatible substances, and always follow the storage instructions on the label and in the safety data sheet. Use clean, dry glassware and spatulas to avoid contamination, and close the container promptly after each use. Handle the compound in a well-ventilated area or fume hood, since sulfur-containing organic compounds may have strong odours. Wear suitable gloves, safety glasses, and a laboratory coat, and avoid inhaling dust or contacting skin and eyes. Dispose of waste according to institutional and local regulations.

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