21490-63-1

Name TRANS-2,3-EPOXYBUTANE
CAS 21490-63-1
EINECS(EC#) 244-406-8
Molecular Formula C4H8O
MDL Number MFCD00005129
Molecular Weight 72.11
MOL File 21490-63-1.mol
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Chemical Properties

Melting point  -85°C
Boiling point  54-55°C
density  0.807 g/mL at 20 °C(lit.)
vapor pressure  3.83 psi ( 20 °C)
refractive index  n20/D 1.373
Fp  -26°C
form  liquid
color  Clear
Specific Gravity 0.804
biological source synthetic
Water Solubility  Soluble in water(95g/L).
Sensitive  Moisture Sensitive
BRN  79772
Major Application flavors and fragrances
InChI 1S/C4H8O/c1-3-4(2)5-3/h3-4H,1-2H3/t3-,4-/m1/s1
InChIKey PQXKWPLDPFFDJP-QWWZWVQMSA-N
SMILES C[C@H]1O[C@@H]1C
LogP 1.053 (est)
CAS DataBase Reference 21490-63-1(CAS DataBase Reference)
EPA Substance Registry System Oxirane, 2,3-dimethyl-, (2R,3R)-rel- (21490-63-1)
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Safety Data

Hazard Codes  F,Xi
Risk Statements 
R11:Highly Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37:Wear suitable protective clothing and gloves .
RIDADR  UN 3271 3/PG 2
WGK Germany  3
RTECS  EK3855040
F  21
HazardClass  3
PackingGroup  II
HS Code  2910900090
Storage Class 3 - Flammable liquids
Hazard Classifications Eye Irrit. 2
Flam. Liq. 2
Skin Irrit. 2
STOT SE 3

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