• Advanced Biotech
    • Advanced Biotech. Inc.
      Inspired by Nature
      A diverse range of products, all meeting our stringent commitment to quality.
      US Email:Quotes and Orders
      US Voice:973-339-6242
      US Fax:973-256-4101
      Product(s):
      BUTYL MERCAPTAN SYNTHETIC
  • CTC Organics
    • CTC Organics
      For More Than 40 Year
      Your source for rare aroma chemicals for the flavor and fragrance industy.
      US Email:Customer Service
      US Voice:(404) 524-6744
      US Fax:(404) 577-1651
      Product(s):
      1− butanethiol
  • DeLong Chemicals America
    • DeLong Chemicals America
      Custom Manufacturing
      Supplier of aroma chemicals, pharmaceutical and specialty chemical intermediates.
      US Email:Customer Service
      US Email:Sales
      US Voice:(203) 271-9017
      Product(s):
      1− Butanethiol, Kosher
  • Penta International
    • Penta International Corporation
      Chemistry innovation
      At Penta, our products and services help businesses do business better.
      US Email:Technical Services
      US Email:Sales
      US Voice:(973) 740-2300
      US Fax:(973) 740-1839
      Product(s):
      1− BUTANETHIOL, Kosher
  • SAFC Global
    • SAFC
      Complete Supply chain
      The perfect blend of products and services that bring your creativity to life.
      US Email:Sales
      US Voice:800-244-1173
      US Fax:800-368-4661
      Product(s):
      1− Butanethiol ≥98%
butyl mercaptan
Notes :
hydrolytic product of merphos.
  • Home
  • Suppliers
  • Organoleptics
      • 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. 
        sulfury garlic onion egg coffee
        Odor Description:
        Sulfureous, fatty, stewed beef, sauteed onion, egg, coffee and garlic
        Mosciano, Gerard P&F 23, No. 1, 33, (1998)
        Taste Description:
        at 1.00 ppm.  
        Sulfureous, vegetative, savory meaty, garlic and onion
        Mosciano, Gerard P&F 23, No. 1, 33, (1998)
  • Properties
      • Physical Properties
        Appearance :colorless to pale yellow clear liquid (est)
        Assay : 98.00 to 100.00 % 
        Food Chemicals Codex Listed :No
        Specific Gravity :0.84200 to 0.84700 @  25.00 °C.
        Pounds per Gallon - (est). : 7.006 to  7.048
        Refractive Index :1.44400 to 1.45200 @  20.00 °C.
        Melting Point :-116.00 °C. @ 760.00 mm Hg
        Boiling Point : 98.50 °C. @ 760.00 mm Hg
        Vapor Pressure :45.500000 mm/Hg @ 25.00 °C.
        Vapor Density :3.1 ( Air = 1 )
        Flash Point : 55.00 °F. TCC ( 12.78 °C. )
        logP (o/w) : 2.280
  • Safety
      • Safety Information
        Most important hazard(s) :Xn - Harmful.
          R 11 - Highly flammable.
        R 20/22 - Harmful by inhalation and if swallowed.
        R 36/37/38 - Irritating to eyes, respiratory system, and skin.
        S 02 - Keep out of the reach of children.
        S 16 - Keep away from sources of ignition - No Smoking.
        S 20/21 - When using do not eat, drink or smoke.
        S 23 - Do not breath vapour.
        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.
        Oral/Parenteral Toxicity : 
          gavage-rat LD50  1500 mg/kg
        (Fairchild & Stokinger, 1958)

        intraperitoneal-rat LD50  399 mg/kg
        BEHAVIORAL: COMA LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY
        American Industrial Hygiene Association Journal. Vol. 19, Pg. 171, 1958.

        oral-mouse LD50  3000 mg/kg
        "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol.Pg.982, 1986

        Dermal Toxicity : 
          Not determined
        Inhalation Toxicity : 
          inhalation-rat LC50 4020 ppm/4H
        LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE
        American Industrial Hygiene Association Journal. Vol. 19, Pg. 171, 1958.

        inhalation-mouse LC50 2500 ppm/4H
        BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE
        American Industrial Hygiene Association Journal. Vol. 19, Pg. 171, 1958.

  • Safety in Use
      • Safety in Use Information
        Category :flavoring agents
        Maximised Survey-derived Daily Intakes (MSDI-EU) :0.39 (μg/capita/day)
        Structure Class :I
        Recommendation for butyl mercaptan fragrance usage levels up to :
         not for fragrance use.
        Recommendation for butyl mercaptan flavor usage levels up to :
          1.0000 ppm in the finished product.
  • Safety References
butane-1-thiol (Click)
CAS Number : 109-79-5
ESIS EC# (EINECS) :203-705-3
Beilstein Number :1730908
CoE Number :526
XlogP3 :2.30 (est)
Molecular Weight :90.18870000
Formula :C4 H10 S
BioActivity Summary :listing
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"SearchPerfumer and Flavorist : Search
Google Patents : Search US Patents : Search
EU Patents : Search IBM Patents : Obtain
Pubchem Patents:Search
PubMed : SearchNCBI : Search
EU SANCO Food Flavourings :Search
JECFA Food Flavoring :511  1-butanethiol
FEMA Number :3478  1-butanethiol
FDA Mainterm : 1-BUTANETHIOL
click on the picture(s) below to interact with the 3D model
Picture of molecule
butane−1−thiol
Synonyms :
 bear skunk
1-butane thiol
 butane−1−thiol
1-butanethiol
1-butyl mercaptan
N-butyl mercaptan
 butyl mercaptan synthetic
 butyl sulfide
 butyl sulphide
 butyl thioalcohol
 butyl thiol
N-butyl−sulfide
1-mercaptobutane
 thiobutyl alcohol
Similar Items: note
 allyl mercaptan
 amyl mercaptan
isoamyl mercaptan
sec-amyl mercaptan
tert-amyl mercaptan
 benzyl mercaptan
 buchu 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 :
 oils, slightly
 water, 597 mg/L @ 20 °C (exp)
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