Dimethyl disulfide
CAS Number: 624-92-0
Chemical Formula: C2H6S2
Synonyms:
MGC126532
YWHAZ
Sulfa-hitech
Appearance: Light Yellow Liquid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Product Details
Dimethyl disulfide CAS#624-92-0
Dimethyl disulfide features a strong, diffusive onion‑like scent and does not cause tearing. While many people find its concentrated odor unpleasant, when properly diluted, it can emit a pleasant aroma. This substance is widely blended with other flavoring agents in foods such as baked goods, cheeses, frozen dairy items, meats, soups, savory flavors, fruit flavors, soft candies, gelatin desserts, puddings, alcoholic drinks, and non‑alcoholic beverages.
Parameters
| Melting point | -85 °C |
| Boiling point | 109 °C(lit.) |
| density | 1.0625 |
| vapor density | 3.24 (vs air) |
| vapor pressure | 22 mm Hg ( 20 °C) |
| refractive index | n20/D 1.525(lit.) |
| FEMA | 3536 | DIMETHYL DISULFIDE |
| Fp | 76 °F |
| storage temp. | Flammables area |
| solubility | 2.7g/l |
| form | Liquid |
| color | Clear yellow |
| Specific Gravity | 1.0647 (20/4℃) |
| Odor | at 0.10 % in propylene glycol. sulfurous vegetable cabbage onion |
| Odor Threshold | 0.0022ppm |
| Odor Type | sulfurous |
| biological source | rabbit |
| explosive limit | 1.1-16.1%(V) |
| Water Solubility | <0.1 g/100 mL at 20 ºC |
| JECFA Number | 564 |
| BRN | 1730824 |
| Exposure limits | ACGIH: TWA 0.5 ppm (Skin) |
| Dielectric constant | 9.7699999999999996 |
| Stability: | Stable. Incompatible with strong bases, strong oxidizing agents, strong reducing agents. Flammable. |
| InChI | 1S/C2H6S2/c1-3-4-2/h1-2H3 |
| InChIKey | WQOXQRCZOLPYPM-UHFFFAOYSA-N |
| SMILES | CSSC |
| LogP | 1.91 at 20℃ |
| CAS DataBase Reference | 624-92-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Disulfide, dimethyl(624-92-0) |
| EPA Substance Registry System | Methyl disulfide (624-92-0) |
Safety Information
| Hazard Codes | F,Xn,N,T+ |
| Risk Statements | 11-20/22-36-51/53-36/37/38-26-22-36/37 |
| Safety Statements | 26-61-45-38-36/37/39-28A-16-60-57-39-29 |
| RIDADR | UN 2381 3/PG 2 |
| WGK Germany | 2 |
| RTECS | JO1927500 |
| Autoignition Temperature | 304 °C |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29309070 |
| Storage Class | 3 – Flammable liquids |
| Hazard Classifications | Acute Tox. 3 Inhalation Acute Tox. 3 Oral Aquatic Acute 1 Aquatic Chronic 1 Eye Irrit. 2 Flam. Liq. 2 Skin Sens. 1 STOT SE 1 Inhalation STOT SE 3 |
| Hazardous Substances Data | 624-92-0(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 290 – 500 mg/kg |
Product Application
Industrially, dimethyl disulfide serves as a sulfiding agent to catalyze reactions in oil refineries and other sectors. It has a low flash point of 16 °C (61 °F), creating fire risks during refining operations. Thanks to its strong odor and low flash point, it is usually stored in sealed containers under nitrogen pressure.
Dimethyl disulfide gives off a sulfurous smell similar to garlic and decomposing fish. Such sulfur compounds are often added to natural gas and propane to detect leaks. As a result, the smell of DMDS fumigation may be confused with a gas leak. DMDS has an odor threshold of roughly 7 ppb, which is about eight times lower than the EPA safe level of 55 ppb.
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Inventory 2-3 working days New production 7-10 working days.
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