Boiling point :53°C
Density :0.732 g/mL at 25 °C
refractive index :n20/D 1.379
Flash point :−20 °F
storage temp. :2-8°C
solubility :sol alcohol, ether, benzene, hexane
form :liquid
color :Clear Yellow
Water Solubility :Slightly miscible with water.
BRN :741882
Exposure limits :ACGIH: TWA 50 ppm (Skin)
OSHA: TWA 500 ppm(1800 mg/m3)
NIOSH: IDLH 1100 ppm; TWA 50 ppm(180 mg/m3) Dielectric constant :8.0500000000000007
InChI :InChI=1S/C4H6O/c1-3-5-4-2/h1H,4H2,2H3
InChIKey :WMYNMYVRWWCRPS-UHFFFAOYSA-N
SMILES :C#COCC
CAS DataBase Reference :927-80-0(CAS DataBase Reference)
NIST Chemistry Reference :Ethoxyacetylene(927-80-0)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501 H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501 H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:	P202 Do not handle until all safety precautions have been read and understood. P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273 Avoid release to the environment. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P331 Do NOT induce vomiting.