Agrochemicals

Dimethyl Disulfide (DMDS) 

CAS No.: 624-92-0 | EC No.: 210-871-0

---

1. Chemical Identification

Property	Specification
IUPAC Name	(Methyldisulfanyl)methane
Molecular Formula	C₂H₆S₂
Molecular Weight	94.20 g/mol
Appearance	Clear yellow liquid
Density	1.062 g/mL at 25°C
Melting Point	-85°C
Boiling Point	109-110°C
Refractive Index	n<sup>20</sup><sub>D</sub> 1.525
Flash Point	15°C (closed cup)
Explosive Limits	1.1-16.1% (in air)

Synonyms:
DMDS, Methyl disulfide, Dimethyldisulphide

---

2. Key Applications

Industrial Solvent

• Pesticide Manufacturing: Key intermediate for soil fumigants
• Petrochemical Processing:
  ✓ Coking inhibitor for ethylene crackers
  ✓ Lubricant additive for extreme pressure performance

Chemical Synthesis

• Primary Precursor for:
  ✓ Methylsulfonyl chloride production
  ✓ Methanesulfonic acid derivatives

Specialty Uses

• Food Industry: Flavoring agent (at regulated levels)
• Fuel Additive: Sulfur-containing compound for diesel

---

3. Product Advantages

✔ High Reactivity – Effective sulfur donor
✔ Multi-functional – Cross-industry applications
✔ Process Efficiency – Reduces coking in refineries

---

4. Physical & Chemical Properties

• Vapor Pressure: 28 mmHg at 25°C
• Solubility:
  • Miscible with organic solvents
  • Slightly soluble in water (2.5 g/L)
• Autoignition Temp.: 300°C

---

5. Handling & Storage

Parameter	Requirement
Storage Temp	<25°C (explosion-proof area)
Packaging	180kg steel drums/N₂ blanket
Shelf Life	24 months stabilized
Special Notes	Ground all containers

---

6. Safety Information

Danger!

• H225: Highly flammable liquid/vapor
• H315+H319: Causes skin/eye irritation
• H335: May cause respiratory irritation

Protective Measures:

• P210: Keep away from heat/sparks/open flames
• P403+P235: Store in well-ventilated place
• P303+P361+P353: Skin contact wash procedure

---

7. Quality Specifications

• Purity: ≥98% (GC)
• Sulfur Content: 68-70%
• Water Content: ≤0.1%

---

Disclaimer:
This information is for professional use only. Handling requires ATEX-compliant facilities. Users must comply with local regulations for flammable sulfur compounds.

If you're ready to take the next step, Leave your message below and we’ll reply soon. 20+ years of chemical manufacturing & export experience, a partner you can trust.