Dimethyl Sulfide CAS #75-18-3
Methyl sulfur has the unpleasant smell of wild radish, similar to cabbage. Only at very low levels (0.1 ?C 3.0 ppm) can it be tolerated as a green vegetable flavor. It can be prepared by the reaction of potassium sulfide and methyl chloride in methanol solution; From potassium methyl sulfate and potassium sulfide.
Dimethyl sulfide (DMS) or methyl thiomethane is an organic sulfur compound with the molecular formula (CH 3) 2 s. Dimethyl sulfide is a flammable liquid that boils at 37 ?? C (99 ?? f) and has an unpleasant odor. It is a component of the smell produced by certain vegetables (especially corn, cabbage, beetroot and seafood) during cooking. This is also a sign of bacterial contamination during malt production and brewing. It is the decomposition product of dimethylsulfopropionic acid (DMSP) and methyl mercaptan produced by bacterial metabolism.
Dimethyl Sulfide CAS #75-18-3
| Dimethyl sulfide Basic information |
| Product Name: | Dimethyl sulfide |
| Synonyms: | Dimethyl sulfide, DMS, Methyl sulfide;DMS, Methyl sulfide;Dinaethlvl Sulfide;Dimethyl sulfide anhydrous, >=99.0%;Dimethyl Sulfide(FEMA No.2746);Methylsulfide,99%;2-Thiopropane;Dimethyl monosulfide |
| CAS: | 75-18-3 |
| MF: | C2H6S |
| MW: | 62.13 |
| EINECS: | 200-846-2 |
| Product Categories: | Organics;sulfide Flavor;Allium cepa (Onion);Allium sativum (Garlic);Building Blocks;Chemical Synthesis;Nutrition Research;Organic Building Blocks;Phytochemicals by Plant (Food/Spice/Herb);Sulfides/Disulfides;Sulfur Compounds;Bioactive Small Molecules;Cell Biology;DIG-DY;Amber Glass Bottles;Reagent;Solvent Bottles;Solvent Packaging Options;Solvents;solvent;Sulfides flavors |
| Mol File: | 75-18-3.mol |
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| Dimethyl sulfide Chemical Properties |
| Melting point | ?98???C(lit.) |
| Boiling point | 38???C(lit.) |
| density | 0.846?g/mL?at 25???C(lit.) |
| vapor density | 2.1 (vs air) |
| vapor pressure | 26.24 psi ( 55 ??C) |
| refractive index | n20/D?1.435(lit.) |
| FEMA | 2746 | METHYL SULFIDE |
| Fp | ?34???F |
| storage temp. | Store at +2??C to +8??C. |
| solubility | Miscible with alcohols, ethers, esters, ketones, aliphatic and aromatic hydrocarbons. |
| form | Liquid |
| color | Clear colorless |
| Specific Gravity | 0.849 (20/4??) |
| Odor | Ethereal, permeating; disagreeable; offensive. |
| explosive limit | 2.2-19.7%(V) |
| Odor Threshold | 0.003ppm |
| Odor Type | sulfurous |
| JECFA Number | 452 |
| Merck | 14,6123 |
| BRN | 1696847 |
| Dielectric constant | 6.3??20?棩 |
| Exposure limits | ACGIH: TWA 10 ppm |
| Stability: | Stable. Incompatible with strong oxidizing agents. Highly flammable – note low boiling point, low flash point, and wide explosion limits. Mixtures with air are potentially explosive. Incompatible with strong oxidizing agents. Use in UK regulated by LPG Regulations 1978 in accordance with HSE guidance note CS17. |
| InChIKey | QMMFVYPAHWMCMS-UHFFFAOYSA-N |
| LogP | 0.89 |
| CAS DataBase Reference | 75-18-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Dimethyl sulfide(75-18-3) |
| EPA Substance Registry System | Dimethyl sulfide (75-18-3) |
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