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LC2034 Diacetyl
for synthesis


Order number Packaging Quantity Price €
AC29034 Alu bottle 100ml 16.65
AC29034 Alu bottle 250ml 36.70


Product information
Hill Formula C4H6O2
Chemical formula CH3COCOCH3
HS Code 2914 19 90
EC number 207-069-8
Molar mass 86.09 g/mol
CAS number 431-03-8


Chemical and physical data
Ignition temperature 365 °C
Solubility 200 g/l (25 °C)
Melting point -2 °C
Molar mass 86.09 g/mol
Density 0.99 g/cm3 (20 °C
Boiling point 89 – 90 °C (1013 hPa)
Vapor pressure 52 hPa (20 °C)
Explosion limit 2.4 – 13.0 %(V)
Flash point 6 °C


Safety information according to GHS
Hazard Statement(s) H225: Highly flammable liquid and vapour.
H302 + H332: Harmful if swallowed or if inhaled.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
Precautionary Statement(s) P210: Keep away from heat/sparks/open flames/hot surfaces. – No smoking.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
Signal Word Danger
Hazard Pictogram(s)
RTECS EK2625000
Storage class 3 Flammable Liquids
WGK WGK 2 water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.


Safety information
R Phrase R 11-20/22-36/38
Highly flammable.Harmful by inhalation and if swallowed.Irritating to eyes and skin.
S Phrase S 9-16-26
Keep container in a well-ventilated place.Keep away from sources of ignition – No smoking.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Categories of danger highly flammable, harmful, irritant
Hazard Symbol Flammable


Transport information
Declaration (transport by sea) IMDG-Code UN 2346 BUTANEDIONE, 3, II
Declaration (transport by air) IATA-DGR UN 2346 BUTANEDIONE, 3, II


Toxicological data
LD 50 oral LD50 rat 1580 mg/kg
LD 50 dermal LD50 rabbit > 5000 mg/kg


Assay (GC, area%) ≥ 97 %
Density (d 20 °C/ 4 °C) 0.984 – 0.987
Identity (IR) passes test



Safety information according to GHS