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General Material Information

Preferred name 2-methyl thiazolidine
Trivial Name 2-Methylthiazolidine
Short Description thiazolidine, 2-methyl-
Formula C4 H9 N S
CAS Number 24050-16-6
FDA UNII 938P672IFL
Nikkaji Number J48.807K
Beilstein Number 0102519
MDL MFCD00053110
xLogP3-AA 0.70 (est)
NMR Predictor External link
Synonyms
  • 2-methyl-1,3-thiazolidine
  • 2-methylthiazolidine
  • thiazolidine, 2-methyl-
  • 2-methyl-1,3-thiazolidine
  • 2-Methylthiazolidine
  • 2-Methyltetrahydrothiazole

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Literature & References

2-methyl-1,3-thiazolidine
NIST Chemistry WebBook:Search Inchi
Pubchem (cid):32196
Pubchem (sid):134995619
Publications by 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.
Acetaldehyde removal from indoor air through chemical absorption using L-cysteine.
Formulation and in-vivo evaluation of L-cysteine chewing gums for binding carcinogenic acetaldehyde in the saliva during smoking.
Synthesis of chiral pyrrolo[1,2-c]thiazoles via intramolecular dipolar cycloaddition of münchnones: an interesting rearrangement to pyrrolo[1,2-c]thiazines.
Formation of malonaldehyde and acetaldehyde from the oxidation of 2'-deoxyribonucleosides.
Quantitative analysis of acetaldehyde in whole blood from human and various animals by gas chromatography.
Prevention of naphthalene-induced cataract and hepatic glutathione loss by the L-cysteine prodrugs, MTCA and PTCA.
Selective modulation of non-protein sulfhydryl levels in Ehrlich ascites tumor bearing mice.
2-Methylthiazolidine and 4-ethylguaiacol, male sex pheromone components of the cockroachNauphoeta cinerea (dictyoptera, blaberidae): A reinvestigation.
Failure of glutathione and cysteine prodrugs to block the chlorpropamide-induced inhibition of aldehyde dehydrogenase in vivo.
Etiological research on gastric cancer and its precursor lesions in Shandong, China.
Seducin, male sex pheromone of the cockroachNauphoeta cinerea: Isolation, identification, and bioassay.
Effects of three cysteine pro-drugs on bleomycin-induced lung fibrosis in hamsters.
Influence of cysteine and nitrate on the endogenous formation of N-nitrosamino acids.
Urinary excretion of N-nitrosamino acids and nitrate by inhabitants in high- and low-risk areas for stomach cancer in northern Japan.
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.
Roles of cysteine as both precursor of thiazolidine 4-carboxylic acids found in human urine and possible inhibitor of endogenous N-nitrosation.
Effects of cysteine pro-drugs on acetaminophen-induced hepatotoxicity.
Increased loss and decreased synthesis of hepatic glutathione after acute ethanol administration. Turnover studies.
Occurrence in human urine of new sulphur-containing N-nitrosamino acids N-nitrosothiazolidine 4-carboxylic acid and its 2-methyl derivative, and their formation.
Urinary excretion products after the administration of 14C-acetaldehyde to rats.
Prodrugs of L-cysteine as liver-protective agents. 2(RS)-Methylthiazolidine-4(R)-carboxylic acid, a latent cysteine.

Other Information

(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
HMDB (The Human Metabolome Database):Search
Export Tariff Code:2934.10.0000
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View

PhysChem Properties

Material listed in food chemical codex No
Molecular weight 103.18772888184
Specific gravity @ 25 °C
Pounds per Gallon 12.64 to 12.69
Refractive Index 1.522 to 1.528 @ 20 °C
Vapor Pressure 1.608 mmHg @ 25 °C
Flash Point TCC Value 55.56 °C TCC
logP (o/w) -1.189 est
Solubility
alcohol Yes
water, slightly Yes
water, 7.572e+005 mg/L @ 25 °C (est) Yes
water No

Organoleptic Properties

Odor Type: Meaty
cooked, meaty, bouillon, soup, brothy
General comment At 0.01 % in propylene glycol. cooked meaty bouillon soup brothy

Occurrences

Potential Uses

Applications
Odor purposes Hawthorn
Flavoring purposes Bacon, Beef, Beef roasted beef, Broth, Chicken, Lamb, Liver, Meat, Meat grilled meat, Meat roasted meat, Meat smoked meat, Pork, Salami, Soup, Turkey
Other purposes Condiments

Safety Information

Safety information

Preferred SDS: View
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:
intraperitoneal-mouse LD50 250 mg/kg
Chimica Therapeutica. Vol. 5, Pg. 312, 1970.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
flavoring agents
Recommendation for 2-methyl thiazolidine usage levels up to:
not for fragrance use.
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
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 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
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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

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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