2-acetyl-5-methyl thiophene
1-(5-methylthiophen-2-yl)ethanone
 
Notes:
Organoleptic. Constit. of coffee aroma.
  • Beijing Lys Chemicals
    • Beijing Lys Chemicals Co, LTD.
      From Grams to Tons
      Fine chemical high-tech company which contains R&D, production, and sales.
      BEIJING LYS CHEMICALS CO, LTD, established in 2004, is a fine chemical high-tech company which contains R&D, production, and sales. We mainly engaged in export and technology development of flavor and fragrance materials and pharmaceutical intermediates. We have nearly 500 kinds of products, from grams to tons, exported to USA, Europe, South Asia and etc. And we custom manufacture new products according to customers’ needs, and serve good quality products and service. Our goal is to become a fine chemical enterprise which could provide special products and services.
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      Product(s):
      10689 2-Acetyl-5-methylthiophene
       
  • Endeavour Specialty Chemicals
    • Endeavour Specialty Chemicals Ltd
      Expertise in Small to Medium Scale Chemical Manufacturing
      Endeavour Speciality Chemicals offers high-impact aroma chemicals, all produced at the highest standards of quality.
      Endeavour Speciality Chemical has 25 years' experience of manufacturing high-impact aroma chemicals. With our core expertise in sulfur and heterocyclic chemistries, Endeavour's products have applications in a range of industry sectors including flavours and fragrances, pharmaceutical research and material sciences. Endeavour also offer custom synthesis and contract manufacturing services at their UK manufacturing site.
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      Product(s):
      TP0040 2-Acetyl-5-methylthiophene 98% F&F
       
  • Penta International
    • Penta International Corporation
      Chemistry innovation
      At Penta, our products and services help businesses do business better.
      For over 30 years, Penta Manufacturing Company has played a growing role in worldwide chemistry innovations and applications. As an industry leader, Penta continues to pioneer chemistry-based solutions for practically every area of commerce. Our products and expertise have helped fuel technical advances in dozens of commercial applications including flavoring, coloring, fragrances and chemical processes.
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      Product(s):
      01-09000 2-ACETYL-5-METHYLTHIOPHENE
       
  • Robinson Brothers
  • TCI AMERICA
    • TCI AMERICA
      Moving Your Chemistry Forward
      We continuously strive to advance our technology.
      Tokyo Chemical Industry Co., Ltd. (TCI) is a leading worldwide manufacturer of specialty organic chemicals founded in 1946. TCI provides organic laboratory chemicals as well as pharmaceutical, cosmetic and functional materials. More than 60 years of synthesis experience and multi-purpose plants enable TCI to offer more than 27,000 products as well as custom synthesis. TCI established overseas facilities in North America, Europe, China and India to serve customers worldwide.
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      Product(s):
      A1181 2-Acetyl-5-methylthiophene >96.0%(GC)
       
  • Treatt
    • Treatt PLC
      Innovative ingredient solutions
      World-leading innovative ingredient solutions provider for the flavour, fragrance and FMCG industries.
      We offer innovative and trend-setting product concepts for our customers, collaborating with them to create true value for their products.
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      Product(s):
      2-Acetyl-5-methylthiophene Kosher
       
Synonyms   Articles   Notes   Search
1-(5-methylthiophen-2-yl)ethanone (Click)
CAS Number: 13679-74-8Picture of molecule
ECHA EINECS - REACH Pre-Reg: 237-181-2
FDA UNII: 2HS3I278W9
Nikkaji Web: J45.610A
Beilstein Number: 0110854
MDL: MFCD00014529
XlogP3-AA: 2.00 (est)
Molecular Weight: 140.20496000
Formula: C7 H8 O S
NMR Predictor: Predict (works with chrome or firefox)
Category: flavoring agents
 
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar: Search
Google Books: Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist: Search
Google Patents: Search
US Patents: Search
EU Patents: Search
Pubchem Patents: Search
JECFA Food Flavoring: 2107  2-acetyl-5-methylthiophene
FEMA Number: 4643  2-acetyl-5-methylthiophene
FDA Mainterm: 2-ACETYL-5-METHYLTHIOPHENE
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Physical Properties:
Appearance: colorless to pale yellow liquid to crystalline powder (est)
Assay: 95.00 to 100.00 % 
Food Chemicals Codex Listed: No
Specific Gravity: 1.12000 to 1.13000 @  20.00 °C.
Pounds per Gallon - (est).: 9.330 to  9.414
Refractive Index: 1.55700 to 1.56700 @  20.00 °C.
Melting Point: 24.00 to  28.00 °C. @ 760.00 mm Hg
Boiling Point: 232.00 to  234.00 °C. @ 760.00 mm Hg
Boiling Point: 65.00 to  67.00 °C. @ 1.00 mm Hg
Vapor Pressure: 0.052000 mm/Hg @ 25.00 °C. (est)
Flash Point: 204.00 °F. TCC ( 95.56 °C. )
logP (o/w): 1.345 (est)
Soluble in:
 alcohol
 water, 1510 mg/L @ 25 °C (est)
Insoluble in:
 water
Similar Items: note
2-acetyl-3-methyl thiophene
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Organoleptic Properties:
Odor Type: spicy
Odor Strength: high ,
recommend smelling in a 1.00 % solution or less
 sweet  spicy  cinnamyl  reseda  hyacinth  balsamic  
Odor Description:
at 1.00 % in propylene glycol. 
sweet spicy cinnamyl mignonette hyacinth balsamic
 sweet  floral  heliotrope  
Taste Description:
sweet floral heliotrope
  
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Cosmetic Information:
None found
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Suppliers:
Beijing Lys Chemicals
2-Acetyl-5-methylthiophene
Carbosynth
For experimental / research use only.
2-Acetyl-5-methylthiophene
Endeavour Specialty Chemicals
2-Acetyl-5-methylthiophene 98% F&F
Speciality Chemical Product Groups
Matrix Scientific
For experimental / research use only.
2-Acetyl-5-methylthiophene, 95+%
Penta International
2-ACETYL-5-METHYLTHIOPHENE
Robinson Brothers
2-Acetyl-5-methylthiophene F&F
https://www.robinsonbrothers.uk/chemistry-competences
Santa Cruz Biotechnology
For experimental / research use only.
2-Acetyl-5-methylthiophene
Sigma-Aldrich: Aldrich
For experimental / research use only.
2-Acetyl-5-methylthiophene 98%
TCI AMERICA
For experimental / research use only.
2-Acetyl-5-methylthiophene >96.0%(GC)
Treatt
2-Acetyl-5-methylthiophene
Kosher
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Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xn - Harmful.
R 20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
S 02 - Keep out of the reach of children.
S 20/21 - When using do not eat, drink or smoke.
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.
S 45 - In case of accident or if you feel unwell seek medical advice immediately.
 
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  230 mg/kg
LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Annales Pharmaceutiques Francaises. Vol. 5, Pg. 16, 1947.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: flavoring agents
Recommendation for 2-acetyl-5-methyl thiophene usage levels up to:
 not for fragrance use.
 
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: 24
Click here to view publication 24
 average usual ppmaverage maximum ppm
baked goods: 0.005000.05000
beverages(nonalcoholic): 0.001000.01000
beverages(alcoholic): --
breakfast cereal: --
cheese: --
chewing gum: --
condiments / relishes: --
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: --
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: --
hard candy: --
imitation dairy: --
instant coffee / tea: 0.001000.01000
jams / jellies: --
meat products: --
milk products: --
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: --
soups: --
sugar substitutes: --
sweet sauces: 0.003000.10000
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Safety References:
EPI System: View
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 83655
National Institute of Allergy and Infectious Diseases: Data
WISER: UN 3082
WGK Germany: 3
 1-(5-methylthiophen-2-yl)ethanone
Chemidplus: 0013679748
RTECS: OB4972000 for cas# 13679-74-8
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References:
 1-(5-methylthiophen-2-yl)ethanone
NIST Chemistry WebBook: Search Inchi
Pubchem (cid): 83655
Pubchem (sid): 135041228
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Other Information:
(IUPAC): Atomic Weights of the Elements 2009
(IUPAC): Atomic Weights of the Elements 2009 (pdf)
Videos: The Periodic Table of Videos
tgsc: Atomic Weights use for this web site
(IUPAC): Periodic Table of the Elements
FDA Everything Added to Food in the United States (EAFUS): View
HMDB (The Human Metabolome Database): HMDB33130
FooDB: FDB011131
Export Tariff Code: 2934.99.9000
VCF-Online: VCF Volatile Compounds in Food
ChemSpider: View
Read: Under the conditions of intended use - New developments in the FEMA GRAS program and the safety assessment of flavor ingredients
Read: A GRAS assessment program for flavor ingredients
Read: Sensory testing for flavorings with modifying properties. Food Technology
Read: Criteria for the safety evaluation of flavoring substances
Read: A procedure for the safety evaluation of natural flavor complexes used as ingredients in food: essential oils
Read: FEMA Expert Panel: 30 Years of safety evaluation for the flavor industry
Read: Consumption ratio and food predominance of flavoring materials
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Potential Blenders and core components note
 
For Odor
animal
para-cresyl phenyl acetateFL/FR
balsamic
sumatra benzoin absoluteFL/FR
sumatra benzoin resinFL/FR
sumatra benzoin resinoidFL/FR
(E)-benzyl tiglateFL/FR
alpha-bisaboleneFL/FR
(E)-cinnamyl alcoholFL/FR
 cinnamyl alcoholFL/FR
 cinnamyl benzoateFL/FR
 cinnamyl cinnamateFL/FR
 copaiba balsam oilFL/FR
 ethyl cinnamateFL/FR
 frankincense absoluteFL/FR
 methyl (E)-cinnamateFL/FR
 opoponax oil (balsamodendron kafal)FL/FR
 opoponax oil (commiphora erythraea var. glabrescens engle)FL/FR
3-phenyl propyl alcoholFL/FR
2-phenyl propyl alcoholFL/FR
3-phenyl propyl cinnamateFL/FR
 tolu balsam oilFL/FR
annus wormwood oil franceFL/FR
chemical
 styralyl alcoholFL/FR
fermented
 hexanal diethyl acetalFL/FR
floral
alpha-amyl cinnamyl acetateFL/FR
 cinnamyl phenyl acetateFL/FR
 ethyl hydrocinnamateFL/FR
 heliotropinFL/FR
 heliotropyl acetoneFL/FR
para-methyl acetophenoneFL/FR
3-nonanon-1-yl acetateFL/FR
 phenethyl formateFL/FR
 phenethyl salicylateFL/FR
(S)-2-phenyl propionaldehydeFL/FR
2-phenyl propionaldehyde dimethyl acetalFL/FR
2-phenyl propyl acetateFL/FR
(R)-2-phenyl propyl alcoholFL/FR
3-phenyl propyl formateFL/FR
3-phenyl propyl propionateFL/FR
4-phenyl-2-butanolFL/FR
2-phenyl-2-pentenalFL/FR
fruity
 benzyl methyl etherFL/FR
 bread thiopheneFL/FR
 cinnamyl isobutyrateFL/FR
 ethyl 3-(2-furyl) propanoateFL/FR
 prenyl acetateFL/FR
green
 acetaldehyde ethyl phenethyl acetalFL/FR
 green etherFL/FR
 heptyl cinnamateFL/FR
 hyacinth absoluteFL/FR
 leafy acetalFL/FR
 phenyl acetaldehydeFL/FR
2-phenyl propionaldehydeFL/FR
herbal
 methyl ortho-anisateFL/FR
honey
 methyl hydrocinnamateFL/FR
medicinal
2-hydroxybenzaldehydeFL/FR
powdery
para-anisyl alcoholFL/FR
spicy
para-anisyl formateFL/FR
 bay leaf oil terpenelessFL/FR
 benzyl isoeugenolFL/FR
 cinnamon bark oil (cinnamomum zeylanicum) indiaFL/FR
(E)-cinnamyl acetateFL/FR
 cinnamyl acetateFL/FR
 mace oil CO2 extractFL/FR
ortho-methoxycinnamaldehydeFL/FR
 myrceneFL/FR
 nutmeg absoluteFL/FR
 nutmeg oil CO2 extractFL/FR
 spicy acetoacetateFL/FR
annus wormwood oil vietnamFL/FR
vanilla
 vanillyl acetateFL/FR
woody
 patchouli oilFL/FR
 patchouli oil molecular distilledFL/FR
 
For Flavor
 
No flavor group found for these
 benzyl methyl etherFL/FR
alpha-bisaboleneFL/FR
(E)-cinnamyl acetateFL/FR
(E)-cinnamyl alcoholFL/FR
 cinnamyl benzoateFL/FR
 cinnamyl phenyl acetateFL/FR
 ethyl hydrocinnamateFL/FR
 green etherFL/FR
 heptyl cinnamateFL/FR
 hexanal diethyl acetalFL/FR
 hyacinth absoluteFL/FR
 methyl (E)-cinnamateFL/FR
 methyl hydrocinnamateFL/FR
 methyl ortho-anisateFL/FR
 phenethyl salicylateFL/FR
(S)-2-phenyl propionaldehydeFL/FR
2-phenyl propyl acetateFL/FR
2-phenyl propyl alcoholFL/FR
(R)-2-phenyl propyl alcoholFL/FR
3-phenyl propyl cinnamateFL/FR
3-phenyl propyl formateFL/FR
3-phenyl propyl propionateFL/FR
4-phenyl-2-butanolFL/FR
2-phenyl-2-pentenalFL/FR
annus wormwood oil franceFL/FR
aromatic
 benzyl isoeugenolFL/FR
para-cresyl phenyl acetateFL/FR
 leafy acetalFL/FR
balsamic
sumatra benzoin resinFL/FR
sumatra benzoin resinoidFL/FR
(E)-benzyl tiglateFL/FR
 copaiba balsam oilFL/FR
 ethyl cinnamateFL/FR
 opoponax oil (balsamodendron kafal)FL/FR
 opoponax oil (commiphora erythraea var. glabrescens engle)FL/FR
 tolu balsam oilFL/FR
berry
 heliotropyl acetoneFL/FR
chemical
 styralyl alcoholFL/FR
cherry
 heliotropinFL/FR
creamy
para-methyl acetophenoneFL/FR
earthy
alpha-amyl cinnamyl acetateFL/FR
fruity
para-anisyl alcoholFL/FR
 bread thiopheneFL/FR
 cinnamyl isobutyrateFL/FR
 ethyl 3-(2-furyl) propanoateFL/FR
3-nonanon-1-yl acetateFL/FR
2-phenyl propionaldehyde dimethyl acetalFL/FR
 prenyl acetateFL/FR
green
 acetaldehyde ethyl phenethyl acetalFL/FR
 cinnamyl alcoholFL/FR
 phenethyl formateFL/FR
2-phenyl propionaldehydeFL/FR
honey
 phenyl acetaldehydeFL/FR
medicinal
 frankincense absoluteFL/FR
nutty
 furfural acetoneFL
powdery
 powdery ketoneFL
spicy
para-anisyl formateFL/FR
 bay leaf oil terpenelessFL/FR
sumatra benzoin absoluteFL/FR
 cinnamon bark oil (cinnamomum zeylanicum) indiaFL/FR
 cinnamyl acetateFL/FR
 cinnamyl cinnamateFL/FR
 galangal root oleoresinFL
2-hydroxybenzaldehydeFL/FR
 mace oil CO2 extractFL/FR
ortho-methoxycinnamaldehydeFL/FR
 nutmeg absoluteFL/FR
 nutmeg oil CO2 extractFL/FR
3-phenyl propyl alcoholFL/FR
 spicy acetoacetateFL/FR
annus wormwood oil vietnamFL/FR
vanilla
 vanillyl acetateFL/FR
woody
 myrceneFL/FR
 patchouli oilFL/FR
 patchouli oil molecular distilledFL/FR
 
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Potential Uses:
 balsam 
 coffee 
 floral 
 hyacinth 
 spicy 
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Occurrence (nature, food, other): note
 beef cooked beef
Search  Picture
 coffee
Search  Picture
 krill
Search  Picture
 pork liver
Search  Picture
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Synonyms:
2-acetyl-5-methylthiophene
 ethanone, 1-(5-methyl-2-thienyl)-
 ketone, methyl 5-methyl-2-thienyl
 methyl 5-methyl-2-thienyl ketone
5-methyl-2-acetyl thiophene
5-methyl-2-acetylthiophene
1-(5-methyl-2-thienyl) ethan-1-one
(5-methyl-2-thienyl) ethanone
1-(5-methyl-2-thienyl)ethan-1-one
(5-methyl-2-thienyl)ethanone
1-(5-methyl-2-thienyl)ethanone
1-(5-methyl-2-thiophenyl)ethanone
1-(5-methyl-thiophen-2-yl)-ethanone
1-(5-methylthien-2-yl)ethanone
1-(5-methylthiophen-2-yl)ethanone
 thiophene, 2-acetyl-5-methyl-
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