prenyl mercaptan
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IUPAC name :3-methylbut-2-ene-1-thiol
InChI :InChI=1/C5H10S/c1-5(2)3-4-6/h3,6H,4H2,1-2H3
InChIKey :GYDPOKGOQFTYGW-UHFFFAOYAH
SMILES :CC(=CCS)C
cas number :5287-45-6
fema number :3896
coe number :11511
jecfa number :522
fl. number :12.170
molar refractivity :33.01 ± 0.3 cm3
parachor :266.3 ± 4.0 cm3
index of refraction :1.468 ± 0.02
surface tension :25.4 ± 3.0 dyne/cm
density :0.862 ± 0.06 g/cm3
polarizability :13.08 ± 0.5 10-24cm3
XlogP : 1.90
molecular weight : 102.1979000
formula :C5 H10 S
NMR Predictor :Predict
 
 
export tariff code :unspecified
fda reg :unspecified

Suppliers :
Frutarom :PRENYL MERCAPTAN
≥98.00%, NI, Kosher
Odor:  Burnt, Roast
Frutarom :PRENYL MERCAPTAN
1% in TAC, NI, Kosher
Odor:  Burnt, Roast
Penta :prenyl mercaptan
Treatt :Prenyl mercaptan

organoleptics :
odor type :sulfurous
odor strength :high ,
recommend smelling in a 0.10 % solution or less
odor description :
at 0.10 % in propylene glycol.  
amine smoke

properties :
appearence :colorless clear liquid
assay : 98.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.88400 to 0.88500 @ 25.00 °C.
pounds per gallon - calc. : 7.356 to 7.364
refractive index :1.48300 to 1.49300 @ 20.00 °C.
boiling point : 128.00 to 135.00 °C. @ 760.00 mm Hg
vapor pressure :14.40000 mm/Hg @ 25.00 °C.
flash point : 100.00  °F.  TCC  ( 37.78 °C. )
logP (o/w) : 2.58

safety :
most important hazard(s) :Xi - Irritant
  R 10 - Flammable.
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 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.
Oral Toxicity(LD50) :
  Not determined
Dermal Toxicity(LD50) :
  Not determined
Inhalation Toxicity(LC50) :
  Not determined
 

safety in use :
Maximised Survey-derived Daily Intakes (MSDI-EU) :ND (μg/capita/day)
 
recommendation for prenyl mercaptan usage levels up to :
 not for fragrance use.

safety references :
European Food Safety Athority(efsa) :Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
EPI System :view
WISER :UN 3336
 
WGK Germany :3
 
 
 
 3-methylbut-2-ene-1-thiol
chemidplus :005287456
EPA Substance Registry Services :5287-45-6

references :
 3-methylbut-2-ene-1-thiol
fl. number :12.170
jecfa number :522
NIST Chemistry WebBook :3049127678
pubchem :724313

other :
VCF-Online: VCF Volatile Compounds in Food
synonyms :
3-methyl but-2-ene-1-thiol
 methyl butene thiol
3-methyl-2-butene-1-thiol
3-methyl-2-butenyl mercaptan
3-methylbut-2-ene-1-thiol
 prenyl thiol

soluble in :
 alcohol
 heptane
 triacetin

insoluble in :
 water

(odor and/or flavor) blends with :
4-allyl-2,6-dimethoxyphenol
 bacon dithiazine
 benzyl disulfide
 betel leaf oil
 birch tar oil
 cade oil
 castoreum absolute
 chipotle chili oleoresin
 cubeb oil
2,6-dimethoxyphenol
2,3-dimethyl benzofuran
3,7-dimethyl-6-octenoic acid
alpha-ethoxy-ortho-cresol
 ethyl 3-hydroxyhexanoate
4-ethyl guaiacol
para-ethyl phenol
 furfuryl mercaptan
 guaiacol
 guaiacyl acetate
 guaiacyl phenyl acetate
1-methyl pyrrole
2-methyl-1,3-dithiolane
4-methyl-2,6-dimethoxyphenol
 pepper tree berry oil
 phoebe oil brazil
 propyl 4-hydroxybenzoate
2-propyl phenol
 pyroligneous acids
 pyroligneous acids hickory
 thioguaiacol
 vanillyl ethyl ether
2,5-xylenol
dextro-xylose

(odor and/or flavor) used in :
 fish
 meat

natural occurrence in :
beer
coffee
hop oil



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