Name: 1,4-Dithiane
Cas: 505-29-3
Purity: 99%
MOQ: 1KG
Directory Guidance on 1,4-Dithiane
Chemical Structure

Basic Info
1, 4-dithionane is a sulfur-containing heterocyclic organic compound with the chemical formula C₄H₈S₂, a six-membered ring structure consisting of two sulfur atoms and four methylene groups (-CH₂-). Its molecular structure is symmetrical, and sulfur atoms are located at positions 1 and 4, forming a stable ring system. 1, 4-dithiane is a white to yellowish crystalline solid at room temperature with a distinctive odor of sulfur-containing compounds, slightly soluble in water, and readily soluble in organic solvents (such as ethanol and ether). It can be prepared by the reaction of 1, 2-dibromoethane with sodium sulfide, or by the cyclization of ethyl dimercaptan, and is a typical representative of thioether compounds.
In the field of chemistry, 1, 4-dithiane is mainly used as intermediates and ligands in organic synthesis. The lone pair electrons on the sulfur atom give it a strong coordination ability and can be used to prepare transition metal complexes (such as palladium and platinum catalysts). In addition, it is also a key skeleton for the construction of sulfur-containing heterocyclic compounds (such as drug molecules or functional materials), which has potential applications in the modification of pesticides, drugs and polymer materials. Due to the reducibility of sulfur atoms, 1, 4-dithiane can also be used as a reducing agent or sulfur source to participate in the reaction, but it should be noted that it may decompose under acidic conditions to produce by-products such as hydrogen sulfide.
Product Introduction
| Melting point | 107-113 °C (lit.) |
| Boiling point | 200 °C (lit.) |
| density | 1.062 (estimate) |
| FEMA | 3831 | 1,4-DITHIANE |
| refractive index | 1.5981 (estimate) |
| storage temp. | 2-8°C |
| solubility | Chloroform (Sparingly), DMSO (Slightly) |
| form | solid |
| Odor | at 0.10 % in propylene glycol. sulfurous solvent garlic onion pyridine |
| Odor Type | seafood |
| MF: | C4H8S2 |
| MW: | 120.24 |
| EINECS: | 208-007-2 |
| Item | Specification |
| Product Name | 1,4-Dithiane |
| CAS No. | 505-29-3 |
| Appearance | Powder |
| Shelf Life | 2 years |
| Packing | As your requirements |
Product Packaging
1. Important organic synthesis intermediates
Protection of the carbonyl group from strong bases or nucleophiles: The sulfur atom in 1,4-disulfide can reversibly react with carbonyl compounds (like aldehydes and ketones) to form thioacetals/ketones. The protection can then be removed by hydrolysis or oxidation (like HG – ²).
Construction of sulfur-containing heterocyclic compounds: as a precursor to the preparation of thiophene, dithioester and other sulfur-containing heterocyclic compounds, used in the synthesis of drugs (such as antibiotics, anti-tumor drugs) and functional materials.
Reducing agent and sulfur source: under certain conditions, it can be used as a mild reducing agent, providing sulfur atoms or participating in the reaction.
2. Chemistry and Catalysis Coordination
Metal ligands: For homogeneous catalysis (such C-S coupling processes), sulfur atoms can form stable complexes with transition metals (Pd, Pt, Ni, etc.) thanks to their lone electron pairs.
Polymer modification: To increase a material’s conductivity or heat resistance, 1,4-disulfides are employed as sulfur-containing monomers in polymer synthesis.
3. Additional unique uses
Pesticide intermediate: used to create fungicides or insecticides that contain sulfur.
Photoelectric materials: Exploring applications in organic semiconductors or chalcogenide materials.
Related References
As a company specializing in the production and supply of 1,4-Dithiane raw materials, we are committed to providing customers with high-quality products and preferential prices. We have rich experience and technology to ensure the quality and stable supply of our products. No matter where you are, we can provide you with the 1,4-Dithiane raw materials you need to support your production and research and development.
We always adhere to the principle of honest management, strictly control product quality, and serve every customer with a customer-first attitude. Over the years, we have established good cooperative relations with domestic and foreign customers and won their trust and praise.
Manufacturer of 1,4-Dithiane
Zhishang Chemical is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional 1,4-Dithiane manufacturer, Zhi shang Chemical has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Pre-Sales Service
* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.
* The sample supports testing and inspection.
* Each batch of products will be tested to ensure that its quality meets user needs.
*Packaging can also be made according to customer requirements.
*Any inquiries will be answered by our relevant personnel within 24 hours.
*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.
After-Sales Service
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*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
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1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
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