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General Material Information

Preferred name 2-acetyl thiophene
Trivial Name 2-Acetylthiophene
Short Description 2-acetylthiophene
Formula C6 H6 O S
CAS Number 88-15-3
Flavis Number 15.04
ECHA Number 201-804-6
FDA UNII 5ASO208T20
Nikkaji Number J4.289G
Beilstein Number 0107910
MDL MFCD00005442
COE Number 11728
Bio Activity Summary External link
NMR Predictor External link
Synonyms
  • 2-aceto thiophene
  • 2-acetothienone
  • 2-acetothiophene
  • alpha- acetyl thiophene
  • 2-acetylthiophene
  • ethanone, 1-(2-thienyl)-
  • ethanone, 1-(2-thienyl)-
  • ketone, methyl 2-thienyl
  • methyl 2-thienyl ketone
  • methyl-2-thienyl ketone
  • 2-thienyl methyl ketone
  • 1-(2-thienyl) ethanone
  • 1-(2-thienyl)-ethanone
  • 1-(2-thienyl)ethan-1-one
  • 1-(2-thienyl)ethanone
  • 1-thiophen-2-yl-ethanone
  • 1-( thiophen-2-yl)-ethanone
  • 1-( thiophen-2-yl)ethan-1-one
  • 1-( thiophen-2-yl)ethanone
  • 1-thiophen-2-ylethanone
  • 1-thiophen-2-ylethanone
  • 1-(2-Thienyl)ethanone
  • 2-Acetylthiophene
  • 2-Thienyl methyl ketone
  • 2-Acetothienone
  • α-Acetylthiophene
  • 2-Acetothiophene
  • 1-(2-Thienyl)-1-ethanone
  • NSC 2345
  • 1-(Thiophen-2-yl)ethanone
  • Thiophen-2-yl methyl ketone
  • 2-(Acetyl)thiofuran
  • 1-(Thiophene-2-yl)ethanone
  • 1-(Thiophen-2-yl)ethan-1-one
  • 2-Acetaldehyde thiophene

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

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Literature & References

1-thiophen-2-ylethanone
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:88-15-3
Pubchem (cid):6920
Pubchem (sid):134972021
Flavornet:88-15-3
Publications by US Patents
3,952,024 - Furfurylthioacetone
Certain 2,5-dimethyl-3-thiopyrazines
Flavoring agent
Publications by PubMed
Domino Synthetic Strategy for Tetrahydrothiopyran Derivatives from Benzaldehydes, 2-Acetylfuran/2-Acetylthiophene, and Sodium Sulfide
Platinum and palladium complexes of thiosemicarbazones derived of 2-acetylthiophene: Synthesis and spectral studies
Dual inhibition of cyclooxygenase and lipoxygenase by 2-acetylthiophene 2-thiazolylhydrazone (CBS-1108) and effect on leukocyte migration in vivo
DFT study of the interactions between thiophene-based corrosion inhibitors and an Fe(4) cluster
Cytotoxic and apoptotic effects of chalcone derivatives of 2-acetyl thiophene on human colon adenocarcinoma cells
Psychomotor Seizure Screening and in vitro Neuroprotection Assay of Hydrazones Derived from 2-Acetyl Thiophene
Synthesis and evaluation of novel substituted 1,2,3-triazolyldihydroquinolines as promising antitubercular agents
Apoptotic effect of chalcone derivatives of 2-acetylthiophene in human breast cancer cells
New terpenoids and thiophene derivatives from the aerial parts of Artemisia sieversiana
Microwave Irradiation Syntheses and Crystal Structures of Two Series of Novel Fivemembered Heterocyclic Mono-Imine Compounds
Synthesis, mol-ecular and crystal structure of 1-(1,2-di-hydro-phthalazin-1-yl-idene)-2-[1-(thio-phen-2-yl)ethyl-idene]hydrazine
Antimicrobial Activity of Some Novel Armed Thiophene Derivatives and Petra/Osiris/Molinspiration (POM) Analyses
Synthesis and anti-inflammatory evaluation of new substituted 1-(3-chlorophenyl)-3-(4-methoxyphenyl)-1H-pyrazole derivatives
Synthesis, antitumor and antimicrobial activities of 4-(4-chlorophenyl)-3-cyano-2-(?-O-glycosyloxy)-6-(thien-2-yl)-nicotinonitrile
Thiosemicarbazone derivatives of nickel and copper: the unprecedented coordination of furan ring in octahedral nickel(II) and of triphenylphosphine in three-coordinate copper(I) complexes
Synthesis of novel morpholine, thiomorpholine and N-substituted piperazine coupled 2-(thiophen-2-yl)dihydroquinolines as potent inhibitors of Mycobacterium tuberculosis
Differential oxidation of two thiophene-containing regioisomers to reactive metabolites by cytochrome P450 2C9
Design and environmentally benign synthesis of novel thiophene appended pyrazole analogues as anti-inflammatory and radical scavenging agents: Crystallographic, in silico modeling, docking and SAR charact
A new facile approach to the synthesis of 3-methylthio-substituted furans, pyrroles, thiophenes, and related derivatives
Synthesis of 4-(2-substituted hydrazinyl)benzenesulfonamides and their carbonic anhydrase inhibitory effects
Metal complexes driven from Schiff bases and semicarbazones forÿbiomedical and allied applications: a review
Synthesis of some Mannich bases with dimethylamine and their hydrazones and evaluation of their cytotoxicity against Jurkat cells
Condensed-phase relative Gibbs free energy and E/Z descriptors for 2-acetylthiophene and 2-acetylthiophene-N1-phenyl thiosemicarbazones
Synthesis of 1-Aryl-3-phenethylamino-1-propanone hydrochlorides as possible potent cytotoxic agents
Anti-inflammatory activity of a dual inhibitor of cyclooxygenase and lipoxygenase pathways, CBS-1108 (2-acetylthiophene-2-thiazolylhydrazone)
Synthesis, preclinical evaluation and antidepressant activity of 5-substituted phenyl-3-(thiophen-2-yl)-4, 5-dihydro-1H-pyrazole-1-carbothioamides
Solvent effects on infrared spectra of 2-acetylthiophene in organic solvents
Synthesis of Pyrimidine Incorporated Piperazine Derivatives and their Antimicrobial Activity
Infrared study on solvent-solute interactions of 2-acetylthiophene in binary mixtures
Rapid detection and characterization of minor reactive metabolites using stable-isotope trapping in combination with tandem mass spectrometry
Synthesis and antifungal evaluation of 1-aryl-2-dimethyl- aminomethyl-2-propen-1-one hydrochlorides
Investigation of anion-ã interactions involving thiophene walls incorporated calix[4]pyrroles
Thermochemistry of 2- and 3-acetylthiophenes: calorimetric and computational study
Synthesis, characterization, electro chemistry, catalytic and biological activities of ruthenium(III) complexes with bidentate N, O/S donor ligands
Interactions of flavor compounds with pectic substances
Cobalt(II) selective membrane electrode based on palladium(II) dichloro acetylthiophene fenchone azine
Generation of a structurally diverse library through alkylation and ring closure reactions using 3-dimethylamino-1-(thiophen-2-yl)propan-1-one hydrochloride
Some 2-acetylthiophene derivatives and related acetophenone analogs
High-performance liquid chromatographic method for the simultaneous estimation of the key intermediates of duloxetine
Conformational preferences for some 5-substituted 2-acetylthiophenes through infrared spectroscopy and theoretical calculations
Novel benzenesulfonylureas containing thiophenylpyrazoline moiety as potential antidiabetic and anticancer agents
Mn(II) and Cu(II) complexes of a bidentate Schiff's base ligand: spectral, thermal, molecular modelling and mycological studies

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
CHEMBL:View
HMDB (The Human Metabolome Database):HMDB33133
FooDB:FDB011134
YMDB (Yeast Metabolome Database):YMDB01431
Export Tariff Code:2934.99.9000
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View

PhysChem Properties

Material listed in food chemical codex No
Molecular weight 126.1780166626
Specific gravity @ 25 °C
Pounds per Gallon 9.686 to 9.744
Refractive Index 1.563 to 1.569 @ 20 °C
Vapor Pressure 0.172 mmHg @ 25 °C
Flash Point TCC Value 95.56 °C TCC
logP (o/w) 1.25
Shelf life 12 months (or longer if stored properly.)
Storage notes Store in cool, dry place in tightly sealed containers, protected from heat and light.
Solubility
alcohol Yes
water, 14000 mg/L @ 30 °C (exp) Yes
water No

Organoleptic Properties

Odor Type: Sulfurous
sulfurous, nutty, hazelnut, walnut
General comment At 100.00 %. sulfurous nutty hazelnut walnut
Flavor Type: Onion
onion, malty, roasted
General comment Onion, malty, roasted

Occurrences

Potential Uses

Applications
Odor purposes Coffee
Flavoring purposes Beef roasted beef, Bread, Pork, Vegetable
Other purposes Velvety

Safety Information

Safety information

Preferred SDS: View
European information :
Most important hazard(s):
T - Toxic.
R 25 - Toxic if swallowed.
S 02 - Keep out of the reach of children.
S 20/21 - When using do not eat, drink or smoke.
S 23 - Do not breath vapour.
S 36/37/39 - Wear suitable clothing, gloves and eye/face protection.
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 40 mg/kg
National Technical Information Service. Vol. AD691-490

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
flavor and fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.049 (μg/capita/day)
Modified Theoretical Added Maximum Daily Intake (mTAMDI): 78 (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): 0.200001.00000
Fats and oils, and fat emulsions (type water-in-oil) (02.0): 0.100000.50000
Edible ices, including sherbet and sorbet (03.0): 0.200001.00000
Processed fruit (04.1): 0.200001.00000
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): --
Confectionery (05.0): 0.200001.00000
Chewing gum (05.3): --
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): 0.100000.50000
Bakery wares (07.0): 0.200001.00000
Meat and meat products, including poultry and game (08.0): 0.100000.20000
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): 0.100000.20000
Eggs and egg products (10.0): --
Sweeteners, including honey (11.0): --
Salts, spices, soups, sauces, salads, protein products, etc. (12.0): 0.100000.50000
Foodstuffs intended for particular nutritional uses (13.0): 0.200001.00000
Non-alcoholic ("soft") beverages, excl. dairy products (14.1): 0.100000.50000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): 0.400002.00000
Ready-to-eat savouries (15.0): 0.400002.00000
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): 0.100000.50000

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

Statement on List of Representative Substances for Testing. The current Statement lays down a list of substances in sub-groups with representative substances for which additional data are required prior to their evaluation through the Procedure (Regulation (EC) No 1565/2000).
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 Substance Registry Services (TSCA):88-15-3
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :6920
National Institute of Allergy and Infectious Diseases:Data
WISER:UN 2810
WGK Germany:3
1-thiophen-2-ylethanone
Chemidplus:0000088153
RTECS:OB6300000 for cas# 88-15-3