Basic Information
Product Name: Diallyl disulfide
Molecular Formula: C6H10S2
Molecular Weight: 146.27 g/mol
CAS Number: 2179-57-9
Appearance: Colorless to light yellow transparent liquid
Odor: Strong garlic-like odor (characteristic of allicin)
Density: 1.005 g/mL (25ºC)
Boiling Point: 139-140ºC (atmospheric pressure)
Melting Point: -80ºC
Solubility: Insoluble in water; soluble in ethanol, diethyl ether, chloroform, etc.

Applications
1. Food and Flavoring
Uses:
As a food flavoring agent to impart garlic flavor, used in sauces, pickles, and meat processing.
Natural antioxidant to inhibit lipid oxidation (e.g., added at 0.01-0.05% in vegetable oils).
Safety:
Recognized as GRAS (Generally Recognized As Safe) by FDA; EU food additive number E953 (rarely used as a synthetic additive, more commonly as a natural extract).
2. Medicine and Health Products
Biological Activities:
Anticancer: Induces tumor cell apoptosis and inhibits angiogenesis, showing potential against gastric and breast cancers (effective in vitro concentration: ~10-50 μM).
Antimicrobial and Anti-inflammatory: Inhibits Helicobacter pylori, Staphylococcus aureus, etc., by interfering with sulfur metabolism.
Antioxidant: Scavenges free radicals (e.g., DPPH, hydroxyl radicals) and reduces oxidative stress.
Applications:
As a raw material in health products (e.g., garlic extract capsules, containing 1-5% diallyl disulfide).
As a lead compound in pharmaceutical research for developing anticancer or antimicrobial drugs.
3. Industry and Agriculture
Industry:
As a rubber vulcanization accelerator to improve heat resistance and mechanical strength of rubber products.
As a metal corrosion inhibitor in the petroleum industry (via sulfur atom complexation with metal surfaces).
Agriculture:
As an intermediate for synthesizing sulfur-containing pesticides.
As a plant growth regulator to promote root development (e.g., enhancing stress resistance in rice).

Safety and Handling Precautions
Toxicity
Acute Toxicity: Oral LD50 in rats ~2000 mg/kg (low toxicity), but high-concentration vapor strongly irritates the respiratory tract.
Irritation: Causes skin redness and itching on contact; flush eyes immediately with plenty of water if exposed.
Handling Requirements
Wear protective gloves and goggles; operate in a well-ventilated area.
Keep away from (flash point ~46ºC, flammable liquid); store in a cool, dark container.
 

Packaging can be customized according to customer requirements.

Qingdao Jinyu Chemical Co., LTD,which is located in Qingdao City, China, with registered capital of RMB 10 million, is a dynamic chemical import and export enterprise with customer demand as its own responsibility. The founder has been engaged in the chemical industry for more than 20 years. With professional technical and marketing personnel, diversified cooperative factories with synthetic technology and efficient logistics management, we provide services to customers all over the world. After years of hard work, we have selected a number of excellent chemical production cooperative enterprises in China. These enterprises have their own advantages in different chemical synthesis fields. They have passed the strict inspection of suppliers by many customers and formed a long-term and stable strategic partnership with customers. With our partners' excellent equipment, well-trained employees and mature technology, we also continue to provide customers with more products.