(E)-2,3-epoxybutane
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IUPAC name :(2S,3S)-2,3-dimethyloxirane
InChI :InChI=1/C4H8O/c1-3-4(2)5-3/h3-4H,1-2H3/t3-,4-/m0/s1
InChIKey :PQXKWPLDPFFDJP-IMJSIDKUBD
SMILES :CC1C(O1)C
cas number :21490-63-1
(EINECS) number :244-406-8
beilstein number :0079772
molar refractivity :20.24 ± 0.3 cm3
parachor :183.3 ± 4.0 cm3
index of refraction :1.395 ± 0.02
surface tension :22.4 ± 3.0 dyne/cm
density :0.855 ± 0.06 g/cm3
polarizability :8.02 ± 0.5 10-24cm3
XlogP : 0.70
molecular weight : 72.1057200
formula :C4 H8 O
NMR Predictor :Predict
 
 
export tariff code :2910.90.1000
fda reg :unspecified

Suppliers :
Sigma-Aldrich-SAFC :trans-2,3-Epoxybutane

organoleptics :

properties :
appearence :colorless clear liquid
assay : 98.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.80400 @ 25.00 °C.
boiling point : 56.00 to 57.00 °C. @ 760.00 mm Hg
vapor pressure :3.83000 mm/Hg @ 20.00 °C.
flash point : -16.00  °F.  TCC  ( -26.67 °C. )
logP (o/w) : 0.79
storage :refrigerate in tightly sealed containers.  store under nitrogen.

safety :
most important hazard(s) :Xi - Irritant
  R 11 - Highly 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 :
 
recommendation for (E)-2,3-epoxybutane usage levels up to :
 not for fragrance use.

safety references :
EPI System :view
Chemical Carcinogenesis Research Information System :Search
Env. Mutagen Info. Center :Search
WISER :UN 3271
 
WGK Germany :3
 
 
 
 (2S,3S)-2,3-dimethyloxirane
(EINECS) number :244-406-8
RTECS :EK3855000 for 21490-63-1
chemidplus :021490631
EPA Substance Registry Services :21490-63-1
dtp/nci :24244

references :
 (2S,3S)-2,3-dimethyloxirane
pubchem :172766

other :
synonyms :
(E)-2-butene oxide
trans-2-butene oxide
(E)-2,3-dimethyl oxirane
trans-2,3-dimethyl oxirane
(2S,3S)-2,3-dimethyloxirane
trans-2,3-dimethyloxirane
trans-2,3-epoxybutane

natural occurrence in :
not found in nature



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