butyl mercaptan
 
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IUPAC name :butane-1-thiol
InChI :InChI=1/C4H10S/c1-2-3-4-5/h5H,2-4H2,1H3
InChIKey :WQAQPCDUOCURKW-UHFFFAOYAG
SMILES :CCCCS
(EINECS) number :203-705-3
cas number :109-79-5
beilstein number :1730908
fema number :3478
coe number :526
jecfa number :511
fl. number :12.010
molar refractivity :28.47 ± 0.3 cm3
parachor :243.1 ± 4.0 cm3
index of refraction :1.437 ± 0.02
surface tension :25.1 ± 3.0 dyne/cm
density :0.830 ± 0.06 g/cm3
polarizability :11.28 ± 0.5 10-24cm3
xlogp : 2.20
molecular weight : 90.1872000
formula :C4 H10 S
 
 
fda reg :unspecified h. number :unspecified
organoleptics : 
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
taste description³ :at 1.00 ppm.  
Sulfureous, vegetative, savory meaty, garlic and onion
properties : 
appearence :colorless to pale yellow clear liquid
assay : 98.00 - 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.84200 - 0.84700 @ 25.00 °C.
pounds per gallon - calc. : 7.006 to 7.048
refractive index :1.44400 - 1.45200 @ 20.00 °C.
melting point :-116.00 °C. @ 760.00 mm Hg
boiling point : 97.00 - 98.40 °C. @ 760.00 mm Hg
logp : 2.28
safety : 
Oral Toxicity(LD50) : Oral-Rat    1500.00  mg/kg    
Dermal Toxicity(LD50) : Not determined
  
flash point ( Deg. F. ) : 55.00  °F.  TCC  ( 12.78 °C. )
  
recommendation for butyl mercaptan usage levels up to :
 not for fragrance use.
  
recommendation for butyl mercaptan usage levels up to :
  1.0000 ppm in the flavor.
  
safety links : 
(EINECS) number :203-705-3
rtecs :EK6300000 for 109-79-5
chemidplus :000109795
epa-srs :109-79-5
  
other : 
 
references : 
jecfa number :511
fl. number :12.010
pubchem :151127
NIST Chemistry WebBook :1083849002
  
reference : Mosciano, Gerard P&F 23, No. 1, 33, (1998)³
synonyms :
 bear skunk
1-butane thiol
 butane-1-thiol
1-butanethiol
 butyl mercaptan
N-butyl mercaptan
 butyl thioalcohol
 butyl thiol
1-mercaptobutane
 thiobutyl alcohol
soluble in :
 oils, slightly
 water, 597 mg/L @ 20C
(odor and/or flavor) used in :
 beef
 cheese
 egg
 garlic
 onion
natural occurrence in :
beef
beer
cheese cheddar cheese
egg boiled egg



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