Dimethyl disulfide
- CAS No.
- 624-92-0
- Chemical Name:
- Dimethyl disulfide
- Synonyms
- DMDS;1,2-dimethyldisulfane;DIMETHYL DISULPHIDE;mds;Disulfide,dimethyl;(CH3S)2;DiMethyl disul;Dimethyldisulfid;143B;FEMA 3536
- CBNumber:
- CB8229876
- Molecular Formula:
- C2H6S2
- Molecular Weight:
- 94.2
- MOL File:
- 624-92-0.mol
- Modify Date:
- 2024/5/23 18:06:45
| 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 |
n |
| FEMA | 3536 | DIMETHYL DISULFIDE |
| Flash point | 76 °F |
| storage temp. | Flammables area |
| solubility | 2.7g/l |
| form | Liquid |
| Specific Gravity | 1.0647 (20/4℃) |
| color | Clear yellow |
| Odor | at 0.10 % in propylene glycol. sulfurous vegetable cabbage onion |
| Odor Type | sulfurous |
| explosive limit | 1.1-16.1%(V) |
| Odor Threshold | 0.0022ppm |
| 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. |
| InChIKey | WQOXQRCZOLPYPM-UHFFFAOYSA-N |
| 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
Risk and Safety Statements
| Symbol(GHS) |     GHS02,GHS06,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H301+H331-H317-H319-H336-H370-H410 | |||||||||
| Precautionary statements | P210-P273-P280-P301+P310-P303+P361+P353-P304+P340+P311 | |||||||||
| 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 | Yes | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29309070 | |||||||||
| Toxicity | LD50 orally in Rabbit: 290 - 500 mg/kg | |||||||||
| NFPA 704 |
|
Dimethyl disulfide price More Price(15)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | W353604 | Dimethyl disulfide ≥98%, FG | 624-92-0 | 10KG | ₹42282.45 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | SRP5155 | 14-3-3 ζ, GST tagged human recombinant, expressed in baculovirus infected Sf9 cells, ≥70% (SDS-PAGE), buffered aqueous glycerol solution | 1173938-18-5 | 50μG | ₹27340.2 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | SAB4503105 | Anti-14-3-3 ζ antibody produced in rabbit affinity isolated antibody | 624-92-0 | 100μG | ₹50560.5 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | SAB4503103 | Anti-14-3-3 ζ antibody produced in rabbit affinity isolated antibody | 624-92-0 | 100μG | ₹50560.5 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.20791 | Dimethyl disulfide for synthesis | 624-92-0 | 5ML | ₹2880 | 2022-06-14 | Buy |
Dimethyl disulfide Chemical Properties,Uses,Production
Description
Dimethyl disulfide has a diffuse intense onion odor. It is nonlachrymatory. Ironically, although many find its odor objectionable at high concentrations as noted above, when diluted, its aroma has also been described as pleasant. Dimethyl disulfide is often used in combination with other flavor compounds in food products, including baked goods, cheese, frozen dairy products, meat products, soups, savory flavors, fruit flavors, soft candy, gelatin, puddings, and both alcoholic and nonalcoholic beverages.
Chemical Properties
colourless to yellow liquid with a very unpleasant smell, insoluble in water, Soluble in ethanol, ethyl ether and acetic acid. It is a strong odor component irritant which is also included in garlic and has been designated as a specific malodorous substances based on the Offensive Odor Control Law. Its detection threshold shows 0.002 ppm, which senses a low concentration equivalent to Dimethyl sulfide.
Occurrence
Reported found in sour cherry, guava, melon, peach, pineapple, strawberry, cabbage, kohlrabi, onion, garlic, shallot, leek, chive, peas, potato, rutabaga, tomato, parsley, breads, many cheeses, yogurt, milk, egg, fish, meats, hop oil, beer, Scotch whiskey, cognac, grape wines, cocoa, coffee, peanut, peanut butter, pecan, potato chips, oats, soybean, beans, mushrooms, trassi, macadamia nut, mango, cauliflower, broccoli, brussels sprouts, rice, radish, sukiyaki, sake, watercress, malt, wort, krill, southern pea, loquat, sapodilla, shrimp, oyster, crab, crayfish, clam, scallops and squid.
Uses
Dimethyl disulfide is used as an intermediate as well as a food additive in onion, garlic, cheese, meats, soups, savory flavors and fruit flavors. It is used in oil refineries as a sulfiding agent. It is used to alfa substitute 2-methylfuran-acrolein to produce food stuff. It is involved in the preparation of 4-(methylthio)phenol. Further, it is used to replace methyl mercaptan as a jet fuel additive. It finds application in artificial flavoring agent and a corrosion inhibitor. In addition to this, it serves as an effective soil fumigant in agriculture.
Preparation
Dimethyl disulfide can be prepared by the reaction between imethyl sulfate and sodium sulfide. under stirring, sulfur powder was added into sodium sulfide solution. The above reaction system was heated Up to 80-90℃, after reaction for 1 h, cooled to about 30 ℃. Dimethyl sulfate was dropped into the reaction system and the reaction was continued for 2h. Then, distillation, stratification, Separating waste alkali liquor, then through distillation and final products are prepared.
In industry,dimethyl sulfate method is adopted to synthesize dimethyl disulfide.
Na2S+S→Na2S2Na2S2+(CH3)2SO4→CH3SSCH3+Na2SO4
From magnesium methyl iodide and S2Cl2, or from S2S2 and sodium methyl sulfate; also from methyl bromide and sodium thiosulfate, after which the resulting sodium methylthiosulfate is heated to yield dimethyl disulfide.
Definition
ChEBI: Dimethyl disulfide is an organic disulfide that is methane in which one of the hydrogens has been replaced by a methyldisulfanyl group. It has a role as a xenobiotic metabolite.
General Description
A colorless oily liquid with a garlic-like odor. Denser than water and slightly soluble in water. Flash point 40°F. Vapors heavier than air. May irritate skin and eyes. Used to make other chemicals.
Air & Water Reactions
Highly flammable. Slightly soluble in water.
Reactivity Profile
DMDS is a reducing agent. A dangerous fire hazard when exposed to oxidizing materials. Emits toxic fumes of oxides of sulfur when heated to decomposition or on contact with acids [Sax, 9th ed., 1996, p. 1320].
Health Hazard
May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Fire Hazard
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Safety Profile
Poison by inhalation. A very dangerous fire hazard when exposed to heat, flame, or oxidzers. Can react vigorously with oxiduing materials. See also SULFIDES.
Purification Methods
Pass it through neutral alumina before use. [Trost Chem Rev 78 363 1978, Beilstein 1 IV 1281.]
Dimethyl disulfide Preparation Products And Raw materials
Raw materials
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chevron_rightPreparation Products
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chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Central Drug House(P) Ltd. | 91-11-49404040 | New Delhi, India | 6160 | 58 | Inquiry |
| Eurochem Industries | 08068441037Ext 223 | Maharashtra, India | 2 | 58 | Inquiry |
| Sai Siddhi | 07942551420 | Gujarat, India | 95 | 58 | Inquiry |
| A. B. Enterprises | +91-8048077585 | Mumbai, India | 1396 | 58 | Inquiry |
| Bhanwarlal Jhanwar & Sons | 08048970955 | Mumbai, India | 8 | 58 | Inquiry |
| Imkemex Marketing Private Limited | 08068441148Ext 603 | Mumbai, India | 10 | 58 | Inquiry |
| Langfang Hawk Techology & Development Co, Ltd. | 0316-2224727,2224728,2224729 | China | 23 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| CLEARSYNTH LABS LTD. | 58 |
| Otto Chemie Pvt. Ltd. | 58 |
| Alfa Aesar | 58 |
| Central Drug House(P) Ltd. | 58 |
| Eurochem Industries | 58 |
| Sai Siddhi | 58 |
| A. B. Enterprises | 58 |
| Bhanwarlal Jhanwar & Sons | 58 |
| Imkemex Marketing Private Limited | 58 |
| Langfang Hawk Techology & Development Co, Ltd. | 58 |
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