Diallyl Disulfide
Diallyl Disulfide (DADS) is an organosulfur liquid responsible for much of the characteristic odour and flavour of cooked garlic.
It has the formula (CH₂=CH-CH₂-S-)₂, a molar mass of 146.27 g/mol, and a CAS number of 2179-57-9. The compound appears as a pale yellow oily liquid with a strong, persistent garlic note detectable at parts-per-billion levels.
We source bulk Diallyl Disulfide from top China manufacturers for our partners. The manufacturer is in Shandong. A smaller requirement can ship in a combined container with other ingredients.
Please send the grade you need, the volume and your destination port, and we will come back with a solution and a price.
or call +86-21-6858 0751
- Packaging
- 190 kg steel drum or 25 kg jerrican
- ISO 9001
- HACCP
- Halal
- Kosher
Specifications
Grades / Types Available: Food Grade, Feed Grade
| Item | Specification |
|---|---|
| Appearance | Yellow oily liquid |
| Assay | ≥ 80% |
| Specific Gravity (20°C) | 1.015-1.025 |
| Refractive Index | 1.545-1.550 |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
| Purity/Assay (Food Grade) | ≥ 99% |
| Moisture/Loss on Drying | ≤ 0.5% |
| Lead | ≤ 2 ppm |
| Arsenic | ≤ 1 ppm |
Common Markets Grades
Diallyl disulfide comes in several purity tiers that follow the downstream use.
Flavour and fragrance grade typically assays at 80 percent or higher, with the balance made up of diallyl sulphide, diallyl trisulfide, and other allyl polysulfides naturally present in distilled garlic oil.
Food-grade DADS, sold as a FEMA GRAS flavouring substance, assays at 95 percent or higher by gas chromatography. This grade is the standard input for savory flavour houses.
Research and reference grades at 98 to 99 percent purity are used in pharmacology, biochemistry, and analytical method development.
Distilled garlic oil itself, which contains 40 to 60 percent DADS alongside related polysulfides, is the most economical bulk source for feed and large-volume flavour applications.
Applications
- Savory flavouring in seasonings, soups, sauces, snack coatings, and meat analogues for a roasted garlic profile
- Compounded reaction flavours that develop meaty, roasted, and onion-garlic notes during processing
- Aroma component in dietary supplement softgels positioned for cardiovascular support
- Active ingredient in veterinary and agricultural antimicrobial preparations
- Insect repellent formulations for organic horticulture and stored-grain protection
- Feed additive for poultry, swine, and aquaculture to improve palatability and gut health
- Research reagent in studies of phase II detoxification enzyme induction and chemoprevention
- Substrate for synthesis of related allyl polysulfides used in flavour and pharmaceutical chemistry
- Fragrance accent in functional household products positioning a natural garlic note
- Calibration and reference compound in headspace gas chromatography of Allium products
Brands Using Diallyl Disulfide
Widely-distributed consumer products that list Diallyl Disulfide on the ingredient label.
- Oregon's Wild HarvestOrganic Garlic Capsules ↗Oregon's Wild Harvest Organic Garlic Capsules are made from whole organic garlic bulbs and the brand highlights diallyl disulfide (DADS) as one of the principal organosulfur active compounds responsible for the supplement's cardiovascular and immune benefits.Label verified 2026-05-24
- KyolicKyolic Aged Garlic Extract Cardiovascular Formula 100 ↗Kyolic's aged garlic extract is described as containing the full spectrum of garlic's bioavailable organosulfur compounds, including diallyl disulfide and related sulfides, after a 20-month aging process that stabilizes garlic's reactive sulfur chemistry.Label verified 2026-05-24
Brand names, product names and logos are the property of their owners. They appear here as published evidence that the ingredient is used, taken from the brand's own label or website. Their appearance is not an endorsement, and it does not mean the brand buys from us or from any manufacturer listed on this site.
China Manufacturers of Diallyl Disulfide
Top Diallyl Disulfide manufacturers in China.
Company names and logos are the property of the manufacturers themselves. They are listed here because our own directory records them as producing this ingredient. A listing is not an endorsement by them, and we do not represent them or speak on their behalf.
How We Help Source Diallyl Disulfide
Direct Factory Sourcing
We run the whole process: selecting the manufacturer from the top Chinese food ingredient producers, negotiating the price, verifying quality, and coordinating the logistics. You deal with us instead of with several factories at once.
Original Packaging and Documents from the Manufacturer
The manufacturer sends your Diallyl Disulfide out of its own factory in the original packing, through to your destination port. The COA, COO, MSDS, TDS and any certifications reach you from the manufacturer as well.
Free Samples and Lead Time
We send 100 to 500 g free for your own laboratory to test and you cover only the courier, usually within 2 to 3 working days. ETD is usually within 7 to 15 days once the order is confirmed, and we check that date against the factory's own manufacturing schedule before we give it to you.
Combined Shipment
We can load Diallyl Disulfide together with other ingredients such as Arachidonic Acid, Coenzyme Q10 and Chondroitin Sulphate Sodium into one 20' FCL. If your quantity is small, we can also ship LCL.
Regulatory Status
Diallyl disulfide is recognised as a flavouring substance in the major food law systems.
The Flavour and Extract Manufacturers Association of the United States lists DADS as FEMA GRAS number 2028. The U.S. Food and Drug Administration accepts it as a synthetic flavouring substance under 21 CFR 172.515 for use in food at levels consistent with good manufacturing practice.
The European Food Safety Authority has evaluated DADS as part of flavouring group FGE.08 covering aliphatic and alicyclic mono-, di-, tri-, and polysulfides with or without additional oxygenated functional groups. It is included in the EU positive list of flavouring substances under FL number 12.008.
For feed use, DADS appears in the EU register of feed additives within the sensory additive category for all animal species, and in the U.S. AAFCO framework as a recognised flavouring.
Pharmacopoeial monographs for garlic oil, in which DADS is the dominant component, appear in the European Pharmacopoeia and the United States Pharmacopeia.
Manufacturing Process
Two industrial routes account for nearly all DADS supply.
The dominant route is steam distillation of fresh or dried garlic (Allium sativum). Crushed bulbs are first allowed to react so that alliinase converts alliin to allicin. Heat then drives the rapid decomposition of allicin to a mixture of allyl sulfides, with DADS as the major component. Steam carries the volatile sulfides into a condenser, where the crude garlic oil separates as a heavy fraction. Fractional distillation under reduced pressure recovers DADS at 80 to 95 percent purity.
The synthetic route starts from allyl chloride or allyl mercaptan. Allyl mercaptan is oxidised with iodine, hydrogen peroxide, or sulphur in alkaline medium to give DADS directly. Alternatively, allyl chloride reacts with sodium disulfide to form the symmetric disulfide. The synthetic route gives more consistent purity for flavour and pharmaceutical grades.
The product is stored cool, dark, and under nitrogen, since the disulfide bond is sensitive to oxidation and to disproportionation into mono-, tri-, and tetrasulfides on prolonged storage.
