amyl mercaptan
  • 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.
      Email: Mr. Jia
      Email: Mr. Guo
      Voice: 86-10-68418738
      Fax: 86-10-68418739
      Mr. Guo86-10-68483445
      Mr. Guo86-10-68418739
      10581 1-Pentanethiol
  • CTC Organics
    • CTC Organics
      For More Than 40 Year
      Your source for rare aroma chemicals for the flavor and fragrance industy.
      “The world is run by middle men.” The number of times I have heard Dr. Liu utter those words are innumerable. He loved reciting and recording famous quotes and had many of his own. Among his many talents, Dr. Liu had a unique genius in the area of chemistry. He had an uncanny understanding of the pulse of the chemical industry and was a superb salesman.
      US Email: Customer Service
      US Voice: (404) 524-6744
      US Fax: (404) 577-1651
      W1687 1-pentanethiol
  • 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.
      US Email: Technical Services
      US Email: Sales
      US Voice: (973) 740-2300
      US Fax: (973) 740-1839
      16-08490 1-PENTANETHIOL, Kosher, Halal
  • SAFC Global
    • SAFC
      Complete Supply Chain
      The perfect blend of products and services that bring your creativity to life.
      Sigma-Aldrich is a leading Life Science and High Technology company dedicated to providing high-quality, safe and certified flavor ingredients with transparent and easily accessible documentation to customers around the globe. Sigma-Aldrich also provides a suite of analytical tools that allow food analysts to simplify sample preparation, cleanup and analysis steps, while increasing sensitivity to trace ingredients and harmful substances to meet regulations and quality standards.
      Email: Information
      US Email: Sales
      US Voice: 800-244-1173
      US Fax: 800-368-4661
      W433300 1-Pentanethiol 98%
  • Treatt
    • Treatt PLC
      Full Range of Naturals
      World-leading, independent ingredients supplier to the flavour and fragrance industries.
      We are proud of our heritage in trading essential oils. Our founder Richard Court Treatt's charismatic and personable approach still embodies the spirit of Treatt today.
      Email: Enquiries
      US Email: Enquiries
      Voice: +44 (0) 1284 702500
      Fax: +44 (0) 1284 703809
      US Voice: +1 863 668 9500
      US Fax: +1 863 668 3388
      1-Pentanethiol NI, Kosher

      Used in meat, durian & coffee flavours: in dairy/bakery, at 0.05-0.5ppm; and in seasonings at 0.4-2.0ppm.
      1-Pentanethiol 10% in Triacetine
Synonyms   Articles   Notes   Search
pentane-1-thiol (Click)
CAS Number: 110-66-7
ECHA EC Number: 203-789-1
Beilstein Number: 1730979
MDL: MFCD00004907
FEMA Number: 4333
XlogP3-AA: 2.30 (est)
Molecular Weight: 104.21564000
Formula: C5 H12 S
NMR Predictor: Predict
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
IBM Patents: Obtain
Pubchem Patents: Search
PubMed: Search
NCBI: Search
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
JECFA Food Flavoring: 1662  1-pentanethiol
Flavis Number: 12.191 (Old)
EU SANCO Food Flavourings: 12.191  pentane-1-thiol

FEMA Number: 4333  1-pentanethiol
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Physical Properties:
Appearance: colorless clear liquid (est)
Assay: 95.00 to 100.00 % 
Food Chemicals Codex Listed: No
Specific Gravity: 0.83100 to 0.84400 @  25.00 °C.
Pounds per Gallon - (est).: 6.915 to  7.023
Refractive Index: 1.44100 to 1.45000 @  20.00 °C.
Boiling Point: 126.00 to  127.00 °C. @ 760.00 mm Hg
Vapor Pressure: 13.800000 mm/Hg @ 25.00 °C.
Flash Point: 65.00 °F. TCC ( 18.33 °C. )
logP (o/w): 2.740
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Organoleptic Properties:
Odor Type: sulfurous
Odor Strength: high ,
recommend smelling in a 0.10 % solution or less
Odor Description:
at 0.10 % in propylene glycol. 
sulfurous fatty roasted meaty vegetable
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Cosmetic Information:
None found
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Beijing Lys Chemicals
CTC Organics
Endeavour Speciality Chemicals
1-Pentanethiol 98%
Penta International
1-PENTANETHIOL, Kosher, Halal
SAFC Global
Sigma-Aldrich: Aldrich
For experimental / research use only.
1-Pentanethiol 10% in Triacetine
NI, Kosher
Odor: Sulphurous; fatty/roast meat; vegetative.Meaty aroma. Odour threshold in water = 0.8 ppb
Flavor: Sulphurous
Used in meat, durian & coffee flavours: in dairy/bakery, at 0.05-0.5ppm; and in seasonings at 0.4-2.0ppm.
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Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xn - Harmful.
R 11 - Highly flammable.
R 20/22 - Harmful by inhalation and if swallowed.
S 02 - Keep out of the reach of children.
S 16 - Keep away from sources of ignition - No Smoking.
S 23 - Do not breath vapour.
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.
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
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
subcutaneous-mouse LD50 > 100 mg/kg
Nature. Vol. 174, Pg. 737, 1954.

Inhalation Toxicity:
inhalation-rat TCLo 2000 ppm/4H
Journal of Industrial Hygiene and Toxicology. Vol. 31, Pg. 343, 1949.

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Safety in Use Information:
Category: flavoring agents
Recommendation for amyl mercaptan usage levels up to:
 not for fragrance use.
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.12 (μg/capita/day)
Modified Theoretical Added Maximum Daily Intake (mTAMDI): 78 (μg/person/day)
NOEL (No Observed Effect Level): 0.56 (mg/kg bw per 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: 23
Click here to view publication 23
 average usual ppmaverage maximum ppm
baked goods: 0.060000.50000
beverages(nonalcoholic): --
beverages(alcoholic): --
breakfast cereal: --
cheese: 0.010000.05000
chewing gum: --
condiments / relishes: --
confectionery froastings: --
egg products: --
fats / oils: --
fish products: 0.100000.50000
frozen dairy: --
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: 0.050000.50000
hard candy: --
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: 0.100000.50000
milk products: 0.100000.50000
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: 0.400002.00000
snack foods: --
soft candy: --
soups: 0.100000.50000
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): 0.200001.00000
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
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): 0.100000.30000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): 0.200001.00000
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
Synonyms   Articles   Notes   Search   Top
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
EPI System: View Calculate predicted properties
NIOSH International Chemical Safety Cards: search
NIOSH Pocket Guide: search
NLM Hazardous Substances Data Bank: Search
EPA Substance Registry Services (TSCA): 110-66-7
EPA ACToR: Toxicology Data
National Institute of Allergy and Infectious Diseases: Data
WISER: UN 1111
WGK Germany: 3
Chemidplus: 0000110667
EPA/NOAA CAMEO: hazardous materials
RTECS: 110-66-7
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NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 110-66-7
Pubchem (cid): 8067
Pubchem (sid): 134974524
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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): HMDB32457
Export Tariff Code: 2930.90.5050
Haz-Map: View
VCF-Online: VCF Volatile Compounds in Food
ChemSpider: View
Wikipedia: View
RSC Learn Chemistry: View
•grades or purity: 96.0+% •98% grade
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Potential Blenders and core components note
4-acetyl-2-methyl pyrimidineFL
 allyl disulfideFL
 allyl mercaptanFL
 allyl methyl disulfideFL
 allyl methyl sulfideFL
 allyl methyl trisulfideFL
 allyl propyl disulfideFL
 allyl propyl sulfideFL
 allyl propyl trisulfideFL
 allyl sulfideFL
 allyl thiopropionateFL
gamma-aminobutyric acidFL
isoamyl mercaptanFL
 ferula assa-foetida absoluteFL/FR
 ferula assa-foetida gum oilFL/FR
 bacon dithiazineFL
 benzyl mercaptanFL
2,3-butane diolFR
1,2-butane dithiolFL
1,3-butane dithiolFL
2,3-butane dithiolFL
 butyl mercaptanFL
 coffee difuranFL/FR
 cyclopentyl mercaptanFL
 cyclopropyl (E,Z)-2,6-nonadienamideFL
 diallyl polysulfidesFL
 diallyl tetrasulfideFL
 diallyl trisulfideFL
 dicyclohexyl disulfideFL
 diethyl disulfideFL
2,5-diethyl thiazoleFL
 diethyl trisulfideFL
3,5-diethyl-2-methyl pyrazineFL
2,5-diethyl-3-methyl pyrazineFL
 difurfuryl sulfideFL
N-(2,4-dimethoxybenzyl)-N2-(2-(pyridin-2-yl)ethyl) oxalamideFL
N-(2-(3,4-dimethoxyphenyl)ethyl)-3,4-dimethoxycinnamic acid amideFL
 dimethyl disulfideFL/FR
2,5-dimethyl furanFL
 dimethyl sulfideFL/FR
 dimethyl tetrasulfideFL
2,6-dimethyl thiophenolFL
 dimethyl trisulfideFL/FR
3,7-dimethyl-2,6-octadien-1-yl cyclopropyl carboxamideFL
2,5-dimethyl-3-furan thiolFL
bis(2,5-dimethyl-3-furyl) disulfideFL
(Z+E)-2,5-dimethyl-3-tetrahydrofuran thiolFL
2,5-dimethyl-3-thiofuroyl furanFL
 dipropyl disulfideFL/FR
 dipropyl sulfideFL
 dipropyl trisulfideFL
1,1-ethane dithiol 1% in ethanol 94.5% / ethyl acetate 4%FL
 ethyl (E,Z)-2,6-nonadienamideFL
S-ethyl 2-acetyl aminoethane thioateFL
 ethyl 3-(furfuryl thio) propionateFL
 ethyl 3-mercaptopropionateFL/FR
 ethyl 4-(acetyl thio) butyrateFL
 ethyl methyl trisulfideFL
 ethyl propyl disulfideFL
 ethyl propyl trisulfideFL
S-ethyl thioacetateFL
(Z+E)-5-ethyl-4-methyl-2-(2-butyl) thiazolineFL
(Z+E)-5-ethyl-4-methyl-2-(2-methyl propyl) thiazolineFL
 fish thiolFL/FR
 furfuryl isopropyl sulfideFL
 furfuryl methyl sulfideFL
4-furfuryl thio-2-pentanoneFL
 furfuryl thiopropionateFL
 garlic oleoresinFL
 grapefruit mercaptanFL/FR
 hazelnut pyrazineFL/FR
 heptyl mercaptanFL
1,6-hexane dithiolFL
 hexyl mercaptanFL
 massoia bark oilFL
 meaty dithianeFL/FR
3-mercapto-2-methyl pentanalFL
3-mercapto-2-methyl pentanolFL
4-mercapto-2-pentanone 1% in acetoinFL
2-mercaptomethyl pyrazineFL
2-mercaptopropionic acidFL/FR
N1-(2-methoxy-4-methyl benzyl)-N2-(2-(pyridin-2-yl)ethyl) oxalamideFL
N1-(2-methoxy-4-methyl benzyl)-N2-2(2-(5-methyl pyridin-2-yl)ethyl) oxalamideFL
 methyl 2-(methyl thio) butyrateFL
 methyl 2-methyl-3-furyl disulfideFL
 methyl 2-thiofuroateFL
2-methyl 3-(methyl thio) furanFL
 methyl 3-(methyl thio) propionateFL/FR
 methyl 3-mercaptobutanoateFL
4-methyl 4-mercaptopentan-2-one 1% solutionFL/FR
2-methyl 5-(methyl thio) furanFL/FR
 methyl benzoxoleFL/FR
 methyl dihydrofuran thiolFL
4-methyl nonanoic acidFL/FR
 methyl propyl disulfideFL
 methyl propyl trisulfideFL
2-methyl pyrazineFL/FR
2-methyl thiazolidineFL
2-(methyl thio) ethanolFL
3-(methyl thio) hexanolFL/FR
2-(methyl thio) methyl-2-butenalFL
2-methyl thioacetaldehydeFL
 methyl thiomethyl butyrateFL
12-methyl tridecanalFL
2-methyl-1-methyl thio-2-buteneFL
3-methyl-2-butane thiolFL
2-methyl-3-,5 or 6-(furfuryl thio) pyrazineFL/FR
2-methyl-3-(methyl thio) pyrazineFL/FR
2-methyl-3-furyl tetrasulfideFL
bis(2-methyl-3-furyl) disulfideFL
S-(2-methyl-3-furyl) ethane thioateFL
2-methyl-3-tetrahydrofuran thiolFL
2-naphthyl mercaptanFL
1,9-nonane dithiolFL
 nutty thiazoleFL
1,8-octane dithiolFL
 onion oilFL/FR
 onion oleoresinFL
 peanut dithiazineFL
4-penten-1-yl acetateFL
1-phenethyl mercaptanFL
1,3-propane dithiolFL
 propenyl propyl disulfideFL
 propyl 2-mercaptopropionateFL
 propyl 2-methyl-3-furyl disulfideFL
isopropyl disulfideFL
 propyl mercaptanFL/FR
isopropyl mercaptanFL
 propyl thioacetateFL
 pyrazinyl ethane thiolFL
2-pyridinyl methane thiolFL
 roasted butanolFL
 rum etherFL/FR
 sulfuryl acetateFL/FR
3-thienyl mercaptanFL
1-(2-thienyl) butanoneFL
2,4,6-trithiaheptane 10% in triacetinFL
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Potential Uses:
 beef roasted beef 
 beer bantu beer 
 hops houblonFL/FR
 meat grilled meat 
 meat roasted meat 
 meat smoked meat 
Synonyms   Articles   Notes   Search   Top
Natural Occurrence in: note
 beer - up to 0.008 mg/kg
GRIN Trop Picture
 sesame seed roasted
GRIN Trop Picture
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 amyl hydrosulfide
N-amyl mercaptan
 amyl sulfhydrate
 amyl thioalcohol
 mercaptan C5
1-pentane thiol
1-pentanethiol 10% in triacetine
 pentyl mercaptan
N-pentyl mercaptan
 thioamyl alcohol
N-thioamyl alcohol
Synonyms   Articles   Notes   Search   Top
Synonyms   Articles   Notes   Search   Top
click on the picture(s) below to
interact with the 3D model
Picture of molecule
Similar Items: note
allyl mercaptan
isoamyl mercaptan
sec-amyl mercaptan
tert-amyl mercaptan
benzyl mercaptan
buchu mercaptan
butyl mercaptan
isobutyl mercaptan
tert-butyl mercaptan
cetyl mercaptan
cyclohexyl mercaptan
cyclopentyl mercaptan
decyl mercaptan
dodecyl mercaptan
2-ethyl hexyl mercaptan
ethyl mercaptan
ethylene mercaptan
furfuryl mercaptan
grapefruit mercaptan
heptyl mercaptan
hexyl mercaptan
methyl mercaptan
2-naphthyl mercaptan
nonyl mercaptan
octyl mercaptan
peach mercaptan
1-phenethyl mercaptan
2-phenethyl mercaptan
phenyl mercaptan
prenyl mercaptan
propyl mercaptan
isopropyl mercaptan
2-thienyl mercaptan
3-thienyl mercaptan
tridecyl mercaptan
undecyl mercaptan
Soluble in:
 water, 156 mg/L @ 20 °C (exp)
Insoluble in:
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