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General Material Information

Preferred name S-prenyl thioisobutyrate
Trivial Name S-(3-Methyl-2-buten-1-yl) 2-methylpropanethioate
Short Description S-(3-methyl-2-buten-1-yl) 2-methylpropanethioate
Formula C9 H16 O S
CAS Number 53626-94-1
FEMA Number 4760
Flavis Number 12.196
FDA UNII 7HQZ604M8H
Nikkaji Number J390.559D
xLogP3-AA 3.20 (est)
NMR Predictor External link
FDA Patent No longer provide for the use of these seven synthetic flavoring substances
Synonyms
  • S-3-methyl but-2-enyl 2-methyl propane thioate
  • S-(3-methyl-2-buten-1-yl) 2-methylpropanethioate
  • S-3-methylbut-2-enyl 2-methylpropanethioate
  • prenyl thioisobutyrate
  • propanethioic acid, 2-methyl-, S-(3-methyl-2-buten-1-yl) ester
  • S-(3-methyl-2-buten-1-yl) 2-methylpropanethioate
  • Propanethioic acid, 2-methyl-, S-(3-methyl-2-butenyl) ester

US / EU / FDA / JECFA / FEMA / Scholar / Patents

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PhysChem Properties

Material listed in food chemical codex No
Molecular weight 172.29072570801
Specific gravity @ 25 °C
Pounds per Gallon 9.228 to 9.278
Refractive Index 1.483 to 1.489 @ 20 °C
Vapor Pressure 0.2 mmHg @ 25 °C
Flash Point TCC Value 71.3 °C TCC
logP (o/w) 3.51 est
Solubility
alcohol Yes
water, 185.8 mg/L @ 25 °C (est) Yes
water No

Organoleptic Properties

Odor Type: Sulfurous
sulfurous, fruity, tropical, durian, passion fruit
General comment At 0.10 % in propylene glycol. sulfurous fruity tropical durian passion fruit

Occurrences

Safety Information

Safety information

Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
flavoring agents
Recommendation for S-prenyl thioisobutyrate usage levels up to:
not for fragrance use.
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.012 (μg/capita/day)
Modified Theoretical Added Maximum Daily Intake (mTAMDI): 160 (μg/person/day)
Threshold of Concern:1800 (μg/person/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: 26
Click here to view publication 26
average usual ppmaverage maximum ppm
baked goods: 0.010000.50000
beverages(nonalcoholic): 0.010000.50000
beverages(alcoholic): 0.010000.50000
breakfast cereal: --
cheese: --
chewing gum: 0.030001.00000
condiments / relishes: 0.010000.50000
confectionery froastings: 0.010000.50000
egg products: --
fats / oils: --
fish products: --
frozen dairy: --
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: 0.010000.50000
hard candy: 0.010000.50000
imitation dairy: --
instant coffee / tea: --
jams / jellies: 0.010000.50000
meat products: --
milk products: --
nut products: --
other grains: --
poultry: --
processed fruits: 0.001000.50000
processed vegetables: 0.001000.50000
reconstituted vegetables: --
seasonings / flavors: 0.010000.05000
snack foods: 0.010000.05000
soft candy: 0.010000.05000
soups: 0.010000.05000
sugar substitutes: --
sweet sauces: --
Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFSA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFSA, 2002i).
Note: mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm.
average usage mg/kgmaximum usage mg/kg
Dairy products, excluding products of category 02.0 (01.0): 0.400002.00000
Fats and oils, and fat emulsions (type water-in-oil) (02.0): 0.200001.00000
Edible ices, including sherbet and sorbet (03.0): 0.400002.00000
Processed fruit (04.1): 0.300001.50000
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): --
Confectionery (05.0): 0.400002.00000
Chewing gum (05.3): --
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): 0.200001.00000
Bakery wares (07.0): 0.400002.00000
Meat and meat products, including poultry and game (08.0): 0.100000.40000
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): 0.100000.40000
Eggs and egg products (10.0): --
Sweeteners, including honey (11.0): --
Salts, spices, soups, sauces, salads, protein products, etc. (12.0): 0.200001.00000
Foodstuffs intended for particular nutritional uses (13.0): 0.400002.00000
Non-alcoholic ("soft") beverages, excl. dairy products (14.1): 0.200001.00000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): 0.400002.00000
Ready-to-eat savouries (15.0): 1.000005.00000
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): 0.200001.00000

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 74 (FGE.74)[1]: Consideration of Simple Aliphatic Sulphides and Thiols evaluated by JECFA (61st meeting) Structurally related to Aliphatic and Alicyclic Mono-, Di-, Tri-, and Polysulphides with or without Additional Oxygenated Functional Groups from Chemical Group 20 evaluated by EFSA in FGE.08 (2008)
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

Flavouring Group Evaluation 91 (FGE.91): Consideration of simple aliphatic and aromatic sulphides and thiols evaluated by JECFA (53rd and 68th meetings) structurally related to aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups evaluated by EFSA in FGE.08Rev1 (2009)
View page or View pdf

Flavouring Group Evaluation 08 Rev2 (FGE.08 Rev2): 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

Scientific Opinion on Flavouring Group Evaluation 08, Revision 5 (FGE.08Rev5): 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

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EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :71438214
National Institute of Allergy and Infectious Diseases:Data
S-(3-methyl-2-buten-1-yl) 2-methylpropanethioate
Chemidplus:0053626941