Dimethyl sulfide（CAS#75-18-3）
| Risk Codes | R11 - Highly Flammable R22 - Harmful if swallowed R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes R36 - Irritating to the eyes |
| Safety Description | S7 - Keep container tightly closed. S9 - Keep container in a well-ventilated place. S16 - Keep away from sources of ignition. S29 - Do not empty into drains. S33 - Take precautionary measures against static discharges. S36/39 - S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 1164 3/PG 2 |
| WGK Germany | 1 |
| RTECS | PV5075000 |
| FLUKA BRAND F CODES | 13 |
| TSCA | Yes |
| HS Code | 2930 90 98 |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: 535 mg/kg LD50 dermal Rabbit > 5000 mg/kg |
Introduction
Dimethyl sulfide (also known as dimethyl sulfide) is an inorganic sulfur compound. The following is an introduction to the properties, uses, preparation methods and safety information of dimethyl sulfide:
Quality:
- Appearance: Colorless liquid with a strong special odor.
- Solubility: miscible with ethanol, ethers, and many organic solvents.
Use:
- Industrial applications: Dimethyl sulfide is widely used as a solvent in organic synthesis reactions, especially in sulfidation and thioaddition reactions.
Method:
- Dimethyl sulfide can be prepared by the direct reaction of ethanol and sulfur. The reaction usually takes place under acidic conditions and requires heating.
- It can also be prepared by adding sodium sulfide to two methyl bromides (e.g. methyl bromide).
Safety Information:
- Dimethyl sulfide has a pungent odor and has an irritating effect on the skin and eyes.
- Avoid contact with skin and eyes and take appropriate precautions when using.
- During use and storage, contact with oxidants and strong acids should be avoided to avoid unsafe reactions.
- Waste should be disposed of in accordance with local laws and regulations and should not be dumped.
- Maintain proper ventilation during storage and use.
Dimethyl sulfide DMS | CAS 75 18 3
2. One Line Sourcing Position
High purity Dimethyl sulfide for reliable industrial synthesis and research applications.
3. Quick RFQ Form
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4. Product Specifications
| Parameter | Specification |
|---|---|
| Purity by GC | 99.0 percent minimum, typical batch 99.3 to 99.6 percent |
| Water content Karl Fischer | 0.10 percent maximum, routinely below 0.05 percent |
| Appearance | Colorless clear liquid free of suspended matter |
| Odor | Characteristic sulfurous odor, consistent with Dimethyl sulfide standard |
| Density at 20 deg C | 0.845 to 0.850 g per mL |
| Refractive index nD20 | 1.435 to 1.438 |
| Residual solvents | Meets EP and USP guidelines for Class 3 solvents |
| Non volatile residue | 50 ppm maximum |
| Heavy metals | Less than 10 ppm by ICP MS |
| Stock status | In Stock in US warehouse and China hub |
5. Available Quantity and Lead Time
Regular supply: 1 kg to 20 metric tons per shipment
Lead time: 3 to 7 days for standard packaging; bulk orders require 10 to 14 days
6. Document Support
COA SDS HPLC chromatogram NMR spectrum Mass spectrum MS available upon request
7. Applications
Dimethyl sulfide serves as a versatile building block in multiple industries. In flavor and fragrance synthesis, it is used to create seafood, vegetable, and tropical fruit notes at low ppm levels. As a petroleum refinery catalyst component, DMS sulfidizes hydrotreating catalysts to improve desulfurization efficiency. In organic chemistry, it functions as a mild methylthiolating agent and a solvent for high boiling polar compounds. Pharmaceutical manufacturers rely on DMS for producing dimethyl sulfoxide DMSO intermediates and methyl sulfonyl methane MSM. It also acts as a reducing agent in certain metal extraction processes and as a odorant for natural gas. Agricultural chemical synthesis uses DMS to introduce methylthio groups into pesticide intermediates. Additionally, it serves as a reference standard in environmental analysis for volatile organic sulfur compounds.
8. Custom Synthesis Support
We offer custom synthesis for Dimethyl sulfide derivatives and tailored purity grades. Share your technical datasheet for a feasibility review.
9. Packaging and Shipping
Available in 1 L, 20 L, 200 L drums or IBC totes. Custom packaging eg. stainless steel containers, amber glass bottles supported. Fastest dispatch within 7 days after order confirmation. Compliance with IMDG and IATA for global delivery.
10. Why XinChem
XinChem combines manufacturing efficiency with strict quality assurance dedicated to US buyers. Our ISO 9001 certified facility monitors every batch from raw material receiving to final packaging, ensuring lot to lot consistency for Dimethyl sulfide. We maintain a buffer stock of 10 metric tons in the US for emergency deliveries within 48 hours. Each shipment comes with a full documentation package including COA, SDS, and chromatograms, accessible through our online portal. Our technical support team, available 24 hours on weekdays, helps with troubleshooting application issues, packaging recommendations, and regulatory inquiries such as TSCA compliance and REACH waivers. For contract customers, we offer quarterly price locks and consignment inventory to reduce your supply chain risk. Positive feedback from over 200 US laboratories and chemical processors confirms our reliability. We also provide free sample evaluation for qualified projects and a price match guarantee against any valid competitor quote for equivalent quality.
11. FAQ
Q1 Is Dimethyl sulfide stable for long term storage?
A Yes, store in a cool, dry, well ventilated area away from oxidizers. Use under nitrogen blanket to avoid odor formation. Shelf life is 24 months in original sealed container.
Q2 What are the common purity grades you supply?
A We offer 98 percent, 99 percent and 99.5 percent grades. The 99 percent grade is most popular for pharmaceutical intermediates.
Q3 Do you provide sample quantities for testing?
A Yes, free samples of 100 mL are available for qualified US companies. Shipping fee applies for small quantities.
Q4 How do you control the strong odor during shipment?
A All containers are triple sealed with PTFE lined caps and outer plastic drums. Emergency spill kits and odor control instructions are included with each order.
Q5 Can you match a competitor's specification sheet?
A Yes, send your target specification and we will produce a matching batch or propose a cost effective alternative within 10 days.
