isopropyl isothiocyanate
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IUPAC name :2-isothiocyanatopropane
InChI :InChI=1/C4H7NS/c1-4(2)5-3-6/h4H,1-2H3
InChIKey :VHBFEIBMZHEWSX-UHFFFAOYAX
SMILES :CC(C)N=C=S
cas number :2253-73-8
(EINECS) number :218-851-3
fema number :4425
jecfa number :1888
molar refractivity :30.98 ± 0.5 cm3
parachor :242.2 ± 8.0 cm3
index of refraction :1.485 ± 0.05
surface tension :25.3 ± 7.0 dyne/cm
density :0.93 ± 0.1 g/cm3
polarizability :12.28 ± 0.5 10-24cm3
XlogP : 2.70
molecular weight : 101.1700800
formula :C4 H7 N S
NMR Predictor :Predict
 
 
export tariff code :unspecified
fda reg :unspecified

Suppliers :
Sigma-Aldrich-Aldrich :Isopropyl isothiocyanate
97%
TCI AMERICA :isopropyl Isothiocyanate
>96.0%(GC)

organoleptics :
odor strength :high ,
recommend smelling in a 0.01 % solution or less
odor description :
pungent mustard

properties :
appearence :colorless clear liquid
assay : 95.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.94700 to 0.95500 @ 25.00 °C.
pounds per gallon - calc. : 7.880 to 7.947
refractive index :1.48900 to 1.49700 @ 20.00 °C.
boiling point : 136.00 to 138.00 °C. @ 760.00 mm Hg
boiling point : 29.00 to 30.00 °C. @ 10.00 mm Hg
vapor pressure :7.58000 mm/Hg @ 25.00 °C.
flash point : 104.00  °F.  TCC  ( 40.00 °C. )
logP (o/w) : 1.82

safety :
most important hazard(s) :Xn - Harmful.
  R 10 - Flammable.
R 23/24/25 - Toxic by inhalation, in contact with skin 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 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.
Oral Toxicity(LD50) :
  Not determined
Dermal Toxicity(LD50) :
  Not determined
Inhalation Toxicity(LC50) :
  Not determined
 

safety in use :
 
recommendation for isopropyl isothiocyanate 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 on the "LIBRARY" link.
publication number : 23
 average usual ppmaverage maximum ppm
baked goods : 2.0000020.00000
beverages(nonalcoholic) : --
beverages(alcoholic) : --
breakfast cereal : --
cheese : 0.500005.00000
chewing gum : --
condiments / relishes : 10.0000050.00000
confectionery froastings : --
egg products : --
fats / oils : 1.0000010.00000
fish products : --
frozen dairy : --
fruit ices : --
gelatins / puddings : --
granulated sugar : --
gravies : 1.0000010.00000
hard candy : --
imitation dairy : 1.0000010.00000
instant coffee / tea : --
jams / jellies : --
meat products : 0.500005.00000
milk products : --
nut products : --
other grains : 0.500005.00000
poultry : --
processed fruits : --
processed vegetables : 0.500005.00000
reconstituted vegetables : 0.500005.00000
seasonings / flavors : 5.0000050.00000
snack foods : 1.0000010.00000
soft candy : --
soups : 1.000005.00000
sugar substitutes : --
sweet sauces : --

safety references :
EPI System :view
WISER :UN 1992
 
WGK Germany :3
 
 
 
 2-isothiocyanatopropane
(EINECS) number :218-851-3
chemidplus :002253738
EPA Substance Registry Services :2253-73-8

references :
 2-isothiocyanatopropane
jecfa number :1888
NIST Chemistry WebBook :3724740395
pubchem :217485

other :
VCF-Online: VCF Volatile Compounds in Food
synonyms :
isopropyl mustard
isopropyl mustard oil
2-isothiocyanatopropane

soluble in :
 alcohol
 water, very slightly

insoluble in :
 water

(odor and/or flavor) blends with :
 allyl alcohol
 allyl sulfide
 benzyl mercaptan
isobutyl mercaptan
 coffee difuran
 cyclopentyl mercaptan
 dimethyl disulfide
 dimethyl sulfide
 ethyl isothiocyanate
 ethyl methyl sulfide
 ethyl vinyl ketone
 furfuryl acetate
 furfuryl methyl sulfide
3-mercapto-2-pentanone
 mercaptoacetaldehyde
 methionyl butyrate
 methyl 4-(methyl thio) butyrate
2-methyl 5-(methyl thio) furan
 methyl benzyl disulfide
 methyl isothiocyanate
 methyl mercaptan
 methyl propyl disulfide
2-(methyl thio) acetaldehyde
4-(methyl thio) butanol
S-(methyl thio) butyrate
2-(methyl thio) methyl-2-butenal
4-methyl thiobutyl isothiocyanate
5-methyl thiopentyl isothiocyanate
2-methyl-5-methoxythiazole
1-penten-3-ol
4-pentenyl isothiocyanate
2-phenethyl isothiocyanate
isopropyl disulfide
 propyl mercaptan
 pyrazinyl ethane thiol
 radish isothiocyanate
 tetrahydrothiophene
S-tropical 2-thiobutyrate

(odor and/or flavor) used in :
 vegetable

natural occurrence in :
brussel sprouts
cabbage chinese cabbage
horseradish japanese horseradish
wasabi



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