3-Butyn-2-one(6CI,7CI,8CI,9CI) cas no:1423-60-5
Synonyms: 1-Butyn-3-one;Acetylacetylene;Acetylethyne;Ethynyl methyl ketone;Methyl ethynyl ketone;
Name3-Butyn-2-one(6CI,7CI,8CI,9CI)
CAS1423-60-5
Synonyms1-Butyn-3-one;Acetylacetylene;Acetylethyne;Ethynyl methyl ketone;Methyl ethynyl ketone;
EINECS(EC#)215-834-2
Molecular FormulaC4H4O
Molecular Weight68.07
Appearanceclear yellow to orange-brown liquid
refractive index1.4045-1.4095
storage temp0-6°C
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
Hazardclass3
Hazard F:Flammable;T+:Verytoxic;
Risk R11;R28;R36/37/38
Safety
Hazard Codes: 
F,
T+,
T,
Xi,
E,
Xn
Risk Statements: 28-36/37/38-11-15-10
R28:Very toxic if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
R11:Highly flammable.
R15:Contact with water liberates extremely flammable gases.
R10:Flammable.
Safety Statements: 45-36/37/39-28A-26-16-43-7/8
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S28:After contact with skin, wash immediately with plenty of soap-suds.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S16:Keep away from sources of ignition.
S43:In case of fire use ... (there follows the type of fire-fighting equipment to be used.)
S7:Keep container tightly closed.
S8:Keep container dry.
Transport Information of 3-Butyn-2-one (CAS NO.1423-60-5 ): UN 1992
RIDADR: UN 1992 3/PG 2
WGK Germany: 3
RTECS: ES0875000
F: 19
Hazard Note: Highly Flammable/Highly Toxic
HazardClass: 3
PackingGroup: II
