Diallyl Disulfide（CAS#2179-57-9）
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R10 - Flammable |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S37/39 - Wear suitable gloves and eye/face protection S16 - Keep away from sources of ignition. S36 - Wear suitable protective clothing. |
| UN IDs | UN 2810 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | BB1000000 |
| FLUKA BRAND F CODES | 13 |
| TSCA | Yes |
| HS Code | 29309090 |
| Hazard Class | 6.1 |
| Packing Group | II |
Diallyl Disulfide Allyl Disulfide DADS 4 5 Dithia 1 7 octadiene | CAS 2179 57 9
One Line Sourcing Position
High purity Diallyl Disulfide for flavor formulations, fragrance compounding, and bioactive organosulfur research applications.
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Specification
| Parameter | Specification |
|---|---|
| Purity by GC | 80.0 percent minimum (technical grade), 98.0 percent minimum (high purity grade) |
| Appearance | Colorless to pale yellow to light orange clear liquid |
| Molecular Formula | C6H10S2 |
| Molecular Weight | 146.27 g per mol |
| Boiling Point | 180 to 195 degrees Celsius (lit.); 138 to 139 degrees Celsius at 760 mmHg |
| Density | 1.008 g per mL at 25 degrees Celsius |
| Refractive Index | n20/D 1.5370 to 1.5510; 1.541 (lit.) |
| Flash Point | 51 to 62 degrees Celsius (closed cup) |
| Specific Gravity (20/20) | 1.02 |
| Solubility | Insoluble in water; soluble in DMF, DMSO, and ethanol |
| Odor | Strong pungent garlic like, characteristic of garlic oil |
| Storage Temperature | 2 to 8 degrees Celsius (refrigerated) |
| Stock Status | In Stock in US warehouse and China hub |
Available Quantity and Lead Time
Regular supply: 100 g to 10 metric tons per shipment
Lead time: 3 to 5 days for standard packaging; bulk orders require 7 to 10 days
Document Support
COA SDS HPLC chromatogram NMR spectrum Mass spectrum MS available upon request
Application
Diallyl Disulfide (DADS) is a naturally occurring organosulfur compound that serves as one of the primary components of garlic oil, responsible for the strong, pungent, and characteristic garlic aroma. It is a versatile compound with broad applications across flavor, fragrance, pharmaceutical research, and cosmetic industries.
In the flavor industry, Diallyl Disulfide is widely used as a flavoring agent and flavor enhancer, providing authentic garlic notes to savory products such as seasonings, sauces, soups, snacks, and meat preparations. It is recognized by FEMA as GRAS (Generally Recognized As Safe) under FEMA Number 2028 and is listed in the FDA's EAFUS database as a flavoring agent or adjuvant under 21 CFR 172.515. It is also approved by JECFA (Number 572) and carries COE Number 485. The compound is commonly used at low concentrations to impart a natural garlic profile without overpowering other flavor notes.
In the fragrance industry, Diallyl Disulfide serves as a key component in fragrance formulations requiring savory, sulfurous, or gourmand notes. It is used in culinary fragrances, savory accords, and certain oriental or spicy compositions where a natural garlic or alliaceous character is desired.
In pharmaceutical and biomedical research, Diallyl Disulfide has garnered significant attention for its diverse biological activities. It has demonstrated anti-inflammatory, antioxidant, antimicrobial, cardiovascular protective, neuroprotective, and anticancer properties. Studies have shown that DADS can suppress cancer cell proliferation, impede invasion and metastasis, induce apoptosis, promote differentiation, and facilitate cell cycle arrest in various cancer types including leukemia and prostate cancer. Its mechanisms of action include activation of detoxifying enzymes, suppression of DNA adduct formation, antioxidant effects, regulation of cell cycle arrest, induction of apoptosis, histone modification, and inhibition of angiogenesis and invasion. DADS is also used in studies involving apoptosis induction and cell viability on different cancer cell lines.
In cosmetic applications, Diallyl Disulfide is incorporated into certain formulations for its antioxidant and antimicrobial properties.
Custom Synthesis Support
We offer custom synthesis for Diallyl Disulfide derivatives including isotopically labeled analogs, higher purity grades (99.0 percent and above), and custom formulations. Share your technical datasheet for feasibility review.
Packaging and Shipping
Available in 25 g, 100 g, 500 g, 1 kg, 5 kg, or 25 kg HDPE drums with PTFE lined caps. Custom packaging such as amber glass bottles under inert atmosphere is supported. Fastest dispatch within 7 days after order confirmation.
Diallyl Disulfide is a flammable liquid, UN 1993, Class 3, Packing Group III. Store refrigerated at 2 to 8 degrees Celsius in tightly closed containers. The compound is heat and air sensitive; protect from light and keep away from strong oxidizing agents.
Why XinChem
XinChem provides Diallyl Disulfide with strict control of purity, odor profile, and impurity levels for US customers. Our ISO 9001 certified facility monitors every batch by GC and sensory evaluation, ensuring consistent quality for flavor, fragrance, and research applications. We maintain a buffer stock in US warehouses for emergency deliveries within 48 hours. Each order includes a full documentation package: COA, SDS, and chromatograms accessible through our online portal. Our technical support team assists with handling under inert atmosphere, stability optimization, and regulatory compliance including TSCA, EINECS (218-548-6), FEMA GRAS No. 2028, and FDA 21 CFR 172.515. For contract customers, we offer quarterly price locks and consignment inventory to reduce supply chain risk. Trusted by numerous flavor houses, fragrance companies, and pharmaceutical research institutions in North America. We also provide free sample evaluation for qualified R&D projects and a price match guarantee against any valid competitor quote for equivalent quality. All shipments are packaged under inert atmosphere to prevent oxidation and preserve olfactory quality, with clear handling instructions.
FAQ
Q1 How should Diallyl Disulfide be stored to maintain its quality?
A Store refrigerated at 2 to 8 degrees Celsius in tightly closed containers, protected from light and air. The compound is heat and air sensitive; keep away from strong oxidizing agents. Shelf life is 12 to 24 months under recommended conditions.
Q2 What purity grades do you supply?
A We supply technical grade (80.0 percent minimum by GC) and high purity grade (98.0 percent minimum by HPLC). Higher purity grades (99.0 percent and above) are available upon request.
Q3 Is Diallyl Disulfide soluble in water?
A No, it is insoluble in water. It is soluble in DMF, DMSO, and ethanol.
Q4 Do you provide sample quantities for flavor development?
A Yes, free samples of 25 g are available for qualified US companies. Shipping fee applies for small quantities.
Q5 What are the common impurities and how do you control them?
A Technical grade material typically contains diallyl sulfide and diallyl trisulfide as the main impurities. Our specification limits total impurities based on the grade requested. Full impurity profiling is provided per batch.
Q6 Is Diallyl Disulfide approved for use as a food flavoring?
A Yes, Diallyl Disulfide is FEMA GRAS (No. 2028) and listed in the FDA's EAFUS database as a flavoring agent or adjuvant under 21 CFR 172.515. It is also approved by JECFA (No. 572). Please request our regulatory package for your specific application.
