Category: flavoring agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Physical Properties:
Appearance: | colorless clear liquid (est) |
Assay: | 98.00 to 100.00 %
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Food Chemicals Codex Listed: | No |
Specific Gravity: | 0.84100 to 0.84500 @ 20.00 °C.
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Pounds per Gallon - (est).: | 7.006 to 7.039
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Refractive Index: | 1.44300 to 1.44700 @ 20.00 °C.
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Boiling Point: | 117.00 to 118.00 °C. @ 760.00 mm Hg
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Boiling Point: | 103.00 to 104.00 °C. @ 760.00 mm Hg (est)
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Vapor Pressure: | 36.735001 mmHg @ 25.00 °C. (est) |
Flash Point: | 60.00 °F. TCC ( 15.56 °C. )
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logP (o/w): | 2.658 (est) |
Soluble in: |
| alcohol | | ether | | water, 692.3 mg/L @ 25 °C (est) |
Insoluble in: |
| water |
Organoleptic Properties:
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Odor Type: sulfurous |
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| beefy meaty |
Odor Description: at 0.10 % in propylene glycol. | repulsive beefy meaty |
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| sulfurous savory burnt rubbery roasted chicken pork meaty coffee roasted coffee cheesy |
Odor Description: at 0.10 %. | sulfurous, savory burnt rubber, roasted chicken and pork meaty with nuances of roasted coffee, cultured cheeses and roasted cashew nuts. Mosciano, Gerard, (2009) |
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Flavor Type: sulfurous |
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| sulfurous savory fried meaty fried fatty coffee cooked onion |
Taste Description: at 0.50 ppm. | sulfurous, savory fried meaty, fried fatty with coffee and cooked onion nuances with a slight tongue bite Mosciano, Gerard, (2009) |
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Odor and/or flavor descriptions from others (if found). |
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R C Treatt & Co Ltd |
3-Methyl-2-butanethiol Halal, Kosher |
Odor Description: | meaty |
Taste Description: | meaty Used in bakery cereal milk products and soups at 0.8ppm, and oils and fats at 0.05ppm. |
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Cosmetic Information:
Suppliers:
Safety Information:
Preferred SDS: View |
European information : |
Most important hazard(s): | Xi - Irritant |
R 11 - Highly flammable. R 36/37/38 - Irritating to eyes, respiratory system, and skin. S 02 - Keep out of the reach of children. S 16 - Keep away from sources of ignition - No Smoking. S 24/25 - Avoid contact with skin and eyes. S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S 36/37/39 - Wear suitable clothing, gloves and eye/face protection.
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Hazards identification |
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Classification of the substance or mixture |
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) |
None found. |
GHS Label elements, including precautionary statements |
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Pictogram | |
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Hazard statement(s) |
None found. |
Precautionary statement(s) |
None found. |
Oral/Parenteral Toxicity: |
gavage-rat LD50 [sex: M,F] 540 mg/kg (Harper & Ginn, 1964)
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Dermal Toxicity: |
Not determined
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Inhalation Toxicity: |
Not determined
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Safety in Use Information:
Category: | flavoring agents |
Recommendation for 3-methyl-2-butane thiol usage levels up to: | | not for fragrance use.
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Maximised Survey-derived Daily Intakes (MSDI-EU): | 0.012 (μg/capita/day) |
Structure Class: | I |
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS). |
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library |
publication number: 5 |
Click here to view publication 5 |
| average usual ppm | average maximum ppm |
baked goods: | - | 1.20000 |
beverages(nonalcoholic): | - | 1.20000 |
beverages(alcoholic): | - | - |
breakfast cereal: | - | 1.20000 |
cheese: | - | - |
chewing gum: | - | - |
condiments / relishes: | - | - |
confectionery froastings: | - | - |
egg products: | - | - |
fats / oils: | - | - |
fish products: | - | - |
frozen dairy: | - | - |
fruit ices: | - | - |
gelatins / puddings: | - | - |
granulated sugar: | - | - |
gravies: | - | 1.20000 |
hard candy: | - | 1.20000 |
imitation dairy: | - | - |
instant coffee / tea: | - | - |
jams / jellies: | - | - |
meat products: | - | 1.20000 |
milk products: | - | 1.20000 |
nut products: | - | - |
other grains: | - | - |
poultry: | - | - |
processed fruits: | - | - |
processed vegetables: | - | - |
reconstituted vegetables: | - | - |
seasonings / flavors: | - | - |
snack foods: | - | - |
soft candy: | - | - |
soups: | - | 1.20000 |
sugar substitutes: | - | - |
sweet sauces: | - | - |
Safety References:
European Food Safety Athority(EFSA): | Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies... |
European Food Safety Authority (EFSA) reference(s): |
Flavouring Group Evaluation 8 (FGE.08)[1]: Aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups from chemical group 20 View page or View pdf |
Flavouring Group Evaluation 8, Revision 1 (FGE.08Rev1): Aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups from chemical groups 20 and 30 View page or View pdf |
Scientific Opinion on Flavouring Group Evaluation 8, Revision 3 (FGE.08Rev3): Aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups from chemical groups 20 and 30 View page or View pdf |
Scientific Opinion on Flavouring Group Evaluation 08, Revision 4 (FGE.08Rev4): Aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups from chemical groups 20 and 30 View page or View pdf |
EPI System: | View |
AIDS Citations: | Search |
Cancer Citations: | Search |
Toxicology Citations: | Search |
EPA Substance Registry Services (TSCA): | 2084-18-6 |
EPA ACToR: | Toxicology Data |
EPA Substance Registry Services (SRS): | Registry |
Laboratory Chemical Safety Summary : | 519823 |
National Institute of Allergy and Infectious Diseases: | Data |
WISER: | UN 1993 |
WGK Germany: | 3 |
| 3-methylbutane-2-thiol |
Chemidplus: | 0002084186 |
| (2R)-3-methylbutane-2-thiol |
| (2S)-3-methylbutane-2-thiol |
References:
Other Information:
Potential Blenders and core components note
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For Odor |
alliaceous |
alliaceous |
| dimethyl trisulfide | FL/FR |
| ferula assa-foetida gum oil | FL/FR |
chocolate |
2,6- | dimethyl pyrazine | FL/FR |
2,5- | dimethyl pyrazine | FL/FR |
2- | methyl-3-,5 or 6-(furfuryl thio) pyrazine | FL/FR |
| sulfurol | FL/FR |
| sulfuryl acetate | FL/FR |
nutty |
2,4,5- | trimethyl oxazole | FL/FR |
| fish thiol | FL/FR |
| furfuryl thioacetate | FL/FR |
2- | mercaptopropionic acid | FL/FR |
4- | methyl 4-mercaptopentan-2-one 1% solution | FL/FR |
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For Flavor |
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No flavor group found for these |
| acetaldehyde diethyl mercaptal | FL |
| benzyl methyl sulfide | FL |
| ethyl 4-(acetyl thio) butyrate | FL |
4- | mercapto-3-methyl-2-butanol | FL |
4- | methyl 4-mercaptopentan-2-one 1% solution | FL/FR |
| methyl dihydrofuran thiol | FL |
2- | methyl-3-,5 or 6-(furfuryl thio) pyrazine | FL/FR |
2- | methyl-3-furyl tetrasulfide | FL |
1,9- | nonane dithiol | FL |
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3,5- | dimethyl-1,2,4-trithiolane | FL |
2,4- | dimethyl-3-oxazoline | FL |
1-(2- | thienyl) butanone | FL |
alliaceous |
| dimethyl trisulfide | FL/FR |
| ferula assa-foetida gum oil | FL/FR |
burnt |
2,4,5- | trimethyl oxazole | FL/FR |
chemical |
2,5- | dimethyl furan | FL |
coffee |
2,4- | dimethyl thiazole | FL |
| methyl furfuryl mercaptopropionate | FL |
earthy |
1,8- | octane dithiol | FL |
garlic |
| garlic oleoresin | FL |
meaty |
2,6- | dimethyl pyrazine | FL/FR |
2,6- | dimethyl thiophenol | FL |
2,5- | dimethyl-3-furan thiol | FL |
3- | mercapto-2-butanone | FL |
2- | mercaptopropionic acid | FL/FR |
2- | methyl 3-(methyl thio) furan | FL |
2- | methyl-3-tetrahydrofuran thiol | FL |
| pyrazinyl ethane thiol | FL |
2- | pyridinyl methane thiol | FL |
| sulfurol | FL/FR |
| sulfuryl acetate | FL/FR |
metallic |
2,5- | dihydroxy-1,4-dithiane | FL |
musty |
2,5- | dimethyl pyrazine | FL/FR |
onion |
| furfuryl isopropyl sulfide | FL |
roasted |
| furfuryl thioacetate | FL/FR |
| hexyl mercaptan | FL |
sulfurous |
| fish thiol | FL/FR |
| furfuryl thiopropionate | FL |
| methyl 2-(methyl thio) butyrate | FL |
| methyl 2-methyl-3-furyl disulfide | FL |
| methyl thiomethyl butyrate | FL |
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Potential Uses:
Occurrence (nature, food, other): note
Synonyms:
2- | butanethiol, 3-methyl- | 2- | mercapto-3-methylbutane | 3- | methyl butane-2-thiol | 3- | methyl-2-butanethiol | 3- | methyl-2-butanethiol natural 1% in ethyl alcohol | 3- | methyl-2-butylmercaptan | 3- | methylbutane-2-thiol |
Articles:
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