ethylene mercaptan
1,2-ethanedithiol
Identification
| Name | ethylene mercaptan |
| IUPAC | ethane-1,2-dithiol |
| CAS Number | 540-63-6 |
| EINECS | 208-752-3 |
| FDA UNII | 92T634FLAR |
| Molecular Formula | C2 H6 S2 |
| Molecular Weight | 94.19982000 |
| MDL Number | MFCD00004892 |
| Nikkaji Number | J4.507A |
| Beilstein | 0505946 |
| CoE Number | 11467 |
Regulatory
| JECFA Food Flavoring | 532 1,2-ethanedithiol |
| DG SANTE Food Flavourings | 12.066 ethane-1,2-dithiol |
| FEMA Number | 3484 |
| FDA | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm (SATF) | 540-63-6 ; 1,2-ETHANEDITHIOL |
Physical Properties
| Appearance | colorless to pale green clear liquid (est) |
| Assay | 99.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Specific Gravity | 1.12300 to 1.12400 @ 20.00 °C. |
| Pounds per Gallon - (est). | 9.355 to 9.364 |
| Refractive Index | 1.55800 to 1.55900 @ 20.00 °C. |
| Melting Point | -41.00 °C. @ 760.00 mm Hg |
| Boiling Point | 144.00 to 146.00 °C. @ 760.00 mm Hg, 46.00 to 47.00 °C. @ 6.00 mm Hg |
| Vapor Pressure | 5.610000 mmHg @ 25.00 °C. |
| Vapor Density | >1 ( Air = 1 ) |
| Flash Point | 122.00 °F. TCC ( 50.00 °C. ) |
| logP (o/w) | 1.310 (est) |
| Soluble in | fats |
| Insoluble in | water |
| Similar Items | note |
Organoleptic Properties
| Odor Description | at 0.01 % in propylene glycol. |
Safety Information
| Preferred SDS | View |
| European information | Most important hazard(s): |
| Oral/Parenteral Toxicity | oral-rat LD50 [sex: M,F] 144 mg/kg |
| Dermal Toxicity | Not determined |
| Inhalation Toxicity | Not determined |
GHS Classification
['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements', 'U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#02101']
Safety in Use
| Category | flavoring agents |
| Recommendation for ethylene mercaptan usage levels up to | not for fragrance use. |
| Maximised Survey-derived Daily Intakes (MSDI-EU) | 0.0012 (μg/capita/day) |
| Structure Class | I |
| baked goods | - |
| beverages(nonalcoholic) | - |
| beverages(alcoholic) | - |
| breakfast cereal | - |
| cheese | - |
| chewing gum | - |
| condiments / relishes | - |
| confectionery froastings | - |
| egg products | - |
| fats / oils | - |
| fish products | - |
| frozen dairy | - |
| fruit ices | - |
| gelatins / puddings | - |
| granulated sugar | - |
| gravies | - |
| hard candy | - |
| imitation dairy | - |
| instant coffee / tea | - |
| jams / jellies | - |
| meat products | - |
| milk products | - |
| nut products | - |
| other grains | - |
| poultry | - |
| processed fruits | - |
| processed vegetables | - |
| reconstituted vegetables | - |
| seasonings / flavors | - |
| snack foods | - |
| soft candy | - |
| soups | - |
| sugar substitutes | - |
| sweet sauces | - |
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