Category: flavoring agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Physical Properties:
Appearance: | colorless clear liquid (est) |
Assay: | 95.00 to 100.00 %
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Food Chemicals Codex Listed: | No |
Specific Gravity: | 1.51900 to 1.52500 @ 25.00 °C.
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Pounds per Gallon - (est).: | 12.640 to 12.690
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Refractive Index: | 1.52200 to 1.52800 @ 20.00 °C.
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Boiling Point: | 160.00 °C. @ 760.00 mm Hg
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Vapor Pressure: | 1.608000 mmHg @ 25.00 °C. (est) |
Flash Point: | 132.00 °F. TCC ( 55.56 °C. )
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logP (o/w): | -1.189 (est) |
Soluble in: |
| alcohol | | water, slightly | | water, 7.572e+005 mg/L @ 25 °C (est) |
Insoluble in: |
| water |
Organoleptic Properties:
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Odor Type: meaty |
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| cooked meaty bouillon soup brothy |
Odor Description: at 0.01 % in propylene glycol. | cooked meaty bouillon soup brothy |
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Odor and/or flavor descriptions from others (if found). |
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Cosmetic Information:
Suppliers:
Safety Information:
Preferred SDS: View |
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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: |
intraperitoneal-mouse LD50 250 mg/kg Chimica Therapeutica. Vol. 5, Pg. 312, 1970.
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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 2-methyl thiazolidine usage levels up to: | | not for fragrance use.
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Maximised Survey-derived Daily Intakes (MSDI-EU): | 0.024 (μg/capita/day) |
Modified Theoretical Added Maximum Daily Intake (mTAMDI): | 160 (μg/person/day) |
Threshold of Concern: | 540 (μg/person/day) |
Structure Class: | II |
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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/kg | maximum usage mg/kg |
Dairy products, excluding products of category 02.0 (01.0): | 0.40000 | 2.00000 |
Fats and oils, and fat emulsions (type water-in-oil) (02.0): | 0.20000 | 1.00000 |
Edible ices, including sherbet and sorbet (03.0): | 0.40000 | 2.00000 |
Processed fruit (04.1): | 0.30000 | 1.50000 |
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): | - | - |
Confectionery (05.0): | 0.40000 | 2.00000 |
Chewing gum (05.0): | - | - |
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): | 0.20000 | 1.00000 |
Bakery wares (07.0): | 0.40000 | 2.00000 |
Meat and meat products, including poultry and game (08.0): | 0.10000 | 0.40000 |
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): | 0.10000 | 0.40000 |
Eggs and egg products (10.0): | - | - |
Sweeteners, including honey (11.0): | - | - |
Salts, spices, soups, sauces, salads, protein products, etc. (12.0): | 0.20000 | 1.00000 |
Foodstuffs intended for particular nutritional uses (13.0): | 0.40000 | 2.00000 |
Non-alcoholic ("soft") beverages, excl. dairy products (14.1): | 0.20000 | 1.00000 |
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): | 0.40000 | 2.00000 |
Ready-to-eat savouries (15.0): | 1.00000 | 5.00000 |
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): | 0.20000 | 1.00000 |
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 21: Thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29. Miscellaneous substances from chemical group 30. (Commission Regulation (EC) No 1565/2000 of 18 July 2000) - Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) View page or View pdf |
Flavouring Group Evaluation 76, (FGE.76)[1] - Consideration of sulphur-containing heterocyclic compounds evaluated by JECFA (59th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29, miscellaneous substances from chemical group 30 evaluated by EFSA in FGE.21 - Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food View page or View pdf |
Flavouring Group Evaluation 21, Revision 1 (FGE.21Rev1): Thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29 Miscellaneous substances from chemical group 30 View page or View pdf |
Flavouring Group Evaluation 93 (FGE.93): Consideration of sulphur heterocyclic evaluated by JECFA (68th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl evaluated by EFSA in FGE.21Rev1 (2009) View page or View pdf |
Scientific Opinion on Flavouring Group Evaluation 21, Revision 2 (FGE.21Rev2): Thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29. Miscellaneous substances from chemical group 30. View page or View pdf |
Scientific Opinion on Flavouring Group Evaluation 21, Revision 3 (FGE.21Rev3): Thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical groups 29 and 30 View page or View pdf |
Scientific Opinion on Flavouring Group Evaluation 21, Revision 4 (FGE.21Rev4): Thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical groups 29 and 30 View page or View pdf |
Scientific Opinion on Flavouring Group Evaluation 21, Revision 5 (FGE.21Rev5): Thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical groups 29 and 30 View page or View pdf |
EPI System: | View |
AIDS Citations: | Search |
Cancer Citations: | Search |
Toxicology Citations: | Search |
EPA ACToR: | Toxicology Data |
EPA Substance Registry Services (SRS): | Registry |
Laboratory Chemical Safety Summary : | 32196 |
National Institute of Allergy and Infectious Diseases: | Data |
WGK Germany: | 3 |
| 2-methyl-1,3-thiazolidine |
Chemidplus: | 0024050166 |
References:
Other Information:
Potential Blenders and core components note
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For Odor |
alliaceous |
| dimethyl trisulfide | FL/FR |
| rum ether | FL/FR |
coffee |
| coffee difuran | FL/FR |
2- | methyl-3-,5 or 6-(furfuryl thio) pyrazine | FL/FR |
herbal |
sweet | basil absolute | FL/FR |
| meaty dithiane | FL/FR |
4- | methyl nonanoic acid | FL/FR |
| sulfuryl acetate | FL/FR |
| hazelnut pyrazine | FL/FR |
4,5- | dimethyl-2-ethyl-3-thiazoline | FL/FR |
2- | methyl pyrazine | FL/FR |
2- | methyl-3-(methyl thio) pyrazine | FL/FR |
| benzothiazole | FL/FR |
| ethyl 3-mercaptopropionate | FL/FR |
| fish thiol | FL/FR |
2- | mercaptopropionic acid | FL/FR |
4- | methyl 4-mercaptopentan-2-one 1% solution | FL/FR |
1- | phenethyl mercaptan | FL/FR |
tobacco |
| methyl benzoxole | FL/FR |
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For Flavor |
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No flavor group found for these |
4- | acetyl-2-methyl pyrimidine | FL |
gamma- | aminobutyric acid | FL |
| amyl mercaptan | FL |
1,2- | butane dithiol | FL |
2-(2- | butyl)-4,5-dimethyl-3-thiazoline | FL |
| cyclopropyl (E,Z)-2,6-nonadienamide | FL |
2,5- | diethyl thiazole | FL |
| dimethyl tetrasulfide | FL |
2,6- | dimethyl-3-((2-methyl-3-furyl)thio)-4-heptanone | FL |
bis(2,5- | dimethyl-3-furyl) disulfide | FL |
(Z+E)-2,5- | dimethyl-3-tetrahydrofuran thiol | FL |
(Z+E)-2,5- | dimethyl-3-thioacetoxytetrahydrofuran | FL |
2,5- | dimethyl-3-thiofuroyl furan | FL |
| ethyl (E,Z)-2,6-nonadienamide | FL |
S- | ethyl 2-acetyl aminoethane thioate | FL |
| ethyl 3-mercaptopropionate | FL/FR |
| ethyl 4-(acetyl thio) butyrate | FL |
2- | ethyl-3-methyl thiopyrazine | FL |
(Z+E)-5- | ethyl-4-methyl-2-(2-butyl) thiazoline | FL |
(Z+E)-5- | ethyl-4-methyl-2-(2-methyl propyl) thiazoline | FL |
1-(3- | hydroxy-5-methyl-2-thienyl) ethanone | FL |
4- | methyl 4-mercaptopentan-2-one 1% solution | FL/FR |
| methyl dihydrofuran thiol | FL |
2-( | methyl thio) ethanol | FL |
2- | methyl-3-,5 or 6-(furfuryl thio) pyrazine | FL/FR |
2- | methyl-3-(methyl thio) pyrazine | FL/FR |
2- | methyl-3-furyl tetrasulfide | FL |
3-((2- | methyl-3-furyl)thio)-4-heptanone | FL |
4-((2- | methyl-3-furyl)thio)-5-nonanone | FL |
1,9- | nonane dithiol | FL |
| peanut dithiazine | FL |
1- | phenethyl mercaptan | FL/FR |
1,3- | propane dithiol | FL |
| propyl 2-methyl-3-furyl disulfide | FL |
iso | propyl disulfide | FL |
| thiazole | FL |
3- | thienyl mercaptan | FL |
| thioacetic acid | FL |
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N-(2-(3,4- | dimethoxyphenyl)ethyl)-3,4-dimethoxycinnamic acid amide | FL |
3,5- | dimethyl-1,2,4-trithiolane | FL |
3,7- | dimethyl-2,6-octadien-1-yl cyclopropyl carboxamide | FL |
4- | mercapto-2-pentanone 1% in acetoin | FL |
2- | methyl-1-methyl thio-2-butene | FL |
| pyrrolidino-(1,2E)-4H-2,4-dimethyl-1,3,5-dithiazine | FL |
1-(2- | thienyl) butanone | FL |
alliaceous |
1,3- | butane dithiol | FL |
| dimethyl trisulfide | FL/FR |
| garlic oil extenders | FL |
3- | tetrahydrothiophenone | FL |
burnt |
| bacon dithiazine | FL |
1,6- | hexane dithiol | FL |
| rum ether | FL/FR |
chemical |
2,5- | dimethyl furan | FL |
cocoa |
| butyraldehyde | FL |
coffee |
| coffee difuran | FL/FR |
earthy |
| difurfuryl sulfide | FL |
1,8- | octane dithiol | FL |
eggy |
iso | propyl mercaptan | FL |
fatty |
(E,E)-2,4- | decadienal | FL |
4- | methyl nonanoic acid | FL/FR |
2- | pentyl thiophene | FL |
green |
4- | penten-1-yl acetate | FL |
herbal |
sweet | basil absolute | FL/FR |
| massoia bark oil | FL |
meaty |
4- | allyl-2,6-dimethoxyphenol | FL |
| benzothiazole | FL/FR |
2,6- | dimethyl thiophenol | FL |
2,5- | dimethyl-3-furan thiol | FL |
2',3- | dimethyl-3',4-dioxa-2,8-dithiabicyclo(3.3.0)octane spirocyclopentane | FL |
1,1- | ethane dithiol 1% in ethanol 94.5% / ethyl acetate 4% | FL |
4- | furfuryl thio-2-pentanone | FL |
| meaty dithiane | FL/FR |
(R,S)-2- | mercapto-3-butanol | FL |
2- | mercaptomethyl pyrazine | FL |
2- | mercaptopropionic acid | FL/FR |
2- | methyl 3-(methyl thio) furan | FL |
12- | methyl tridecanal | FL |
bis(2- | methyl-3-furyl) disulfide | FL |
S-(2- | methyl-3-furyl) ethane thioate | FL |
2- | methyl-3-tetrahydrofuran thiol | FL |
| propyl 2-mercaptopropionate | FL |
| pyrazinyl ethane thiol | FL |
2- | pyridinyl methane thiol | FL |
| sulfuryl acetate | FL/FR |
| thialdine | FL |
ortho- | thiocresol | FL |
ortho- | thioguaiacol | FL |
metallic |
2,5- | dihydroxy-1,4-dithiane | FL |
musty |
2- | ethoxythiazole | FL |
| hazelnut pyrazine | FL/FR |
nutty |
3- | acetyl-2,5-dimethyl thiophene | FL |
2- | acetyl-4-methyl thiazole | FL |
3,5- | diethyl-2-methyl pyrazine | FL |
2,5- | diethyl-3-methyl pyrazine | FL |
4,5- | dimethyl-2-ethyl-3-thiazoline | FL/FR |
| methyl benzoxole | FL/FR |
2- | methyl pyrazine | FL/FR |
| nutty thiazole | FL |
onion |
| furfuryl isopropyl sulfide | FL |
| methionol | FL |
popcorn |
2- | propionyl-2-thiazoline | FL |
roasted |
| hexyl mercaptan | FL |
savory |
N-(2,4- | dimethoxybenzyl)-N2-(2-(pyridin-2-yl)ethyl) oxalamide | FL |
N-( | heptan-4-yl)benzo(D)(1,3)dioxole-5-carboxamide | FL |
N1-(2- | methoxy-4-methyl benzyl)-N2-(2-(pyridin-2-yl)ethyl) oxalamide | FL |
N1-(2- | methoxy-4-methyl benzyl)-N2-2(2-(5-methyl pyridin-2-yl)ethyl) oxalamide | FL |
sulfurous |
2,3- | butane dithiol | FL |
S- | ethyl thioacetate | FL |
| fish thiol | FL/FR |
| methyl 2-methyl-3-furyl disulfide | FL |
3- | methyl-2-butane thiol | FL |
2- | naphthyl mercaptan | FL |
| roasted butanol | FL |
2,4,6- | trithiaheptane 10% in triacetin | FL |
vegetable |
| tyramine | FL |
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Potential Uses:
Occurrence (nature, food, other): note
Synonyms:
2- | methyl-1,3-thiazolidine | 2- | methylthiazolidine | | thiazolidine, 2-methyl- |
Articles:
PubMed: | The cysteine reaction with diacetyl under wine-like conditions: proposed mechanisms for mixed origins of 2-methylthiazole, 2-methyl-3-thiazoline, 2-methylthiazolidine, and 2,4,5-trimethyloxazole. |
PubMed: | Acetaldehyde removal from indoor air through chemical absorption using L-cysteine. |
PubMed: | Formulation and in-vivo evaluation of L-cysteine chewing gums for binding carcinogenic acetaldehyde in the saliva during smoking. |
PubMed: | Synthesis of chiral pyrrolo[1,2-c]thiazoles via intramolecular dipolar cycloaddition of münchnones: an interesting rearrangement to pyrrolo[1,2-c]thiazines. |
PubMed: | Formation of malonaldehyde and acetaldehyde from the oxidation of 2'-deoxyribonucleosides. |
PubMed: | Quantitative analysis of acetaldehyde in whole blood from human and various animals by gas chromatography. |
PubMed: | Prevention of naphthalene-induced cataract and hepatic glutathione loss by the L-cysteine prodrugs, MTCA and PTCA. |
PubMed: | Selective modulation of non-protein sulfhydryl levels in Ehrlich ascites tumor bearing mice. |
PubMed: | 2-Methylthiazolidine and 4-ethylguaiacol, male sex pheromone components of the cockroachNauphoeta cinerea (dictyoptera, blaberidae): A reinvestigation. |
PubMed: | Failure of glutathione and cysteine prodrugs to block the chlorpropamide-induced inhibition of aldehyde dehydrogenase in vivo. |
PubMed: | Etiological research on gastric cancer and its precursor lesions in Shandong, China. |
PubMed: | Seducin, male sex pheromone of the cockroachNauphoeta cinerea: Isolation, identification, and bioassay. |
PubMed: | Effects of three cysteine pro-drugs on bleomycin-induced lung fibrosis in hamsters. |
PubMed: | Influence of cysteine and nitrate on the endogenous formation of N-nitrosamino acids. |
PubMed: | Urinary excretion of N-nitrosamino acids and nitrate by inhabitants in high- and low-risk areas for stomach cancer in northern Japan. |
PubMed: | Effect of cigarette smoking and dietary factors on the amount of N-nitrosothiazolidine 4-carboxylic acid and N-nitroso-2-methyl-thiazolidine 4-carboxylic acid in human urine. |
PubMed: | Roles of cysteine as both precursor of thiazolidine 4-carboxylic acids found in human urine and possible inhibitor of endogenous N-nitrosation. |
PubMed: | Effects of cysteine pro-drugs on acetaminophen-induced hepatotoxicity. |
PubMed: | Increased loss and decreased synthesis of hepatic glutathione after acute ethanol administration. Turnover studies. |
PubMed: | Occurrence in human urine of new sulphur-containing N-nitrosamino acids N-nitrosothiazolidine 4-carboxylic acid and its 2-methyl derivative, and their formation. |
PubMed: | Urinary excretion products after the administration of 14C-acetaldehyde to rats. |
PubMed: | Prodrugs of L-cysteine as liver-protective agents. 2(RS)-Methylthiazolidine-4(R)-carboxylic acid, a latent cysteine. |
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