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LC5321 Pyruvaldehyde 1,1-dimethyl acetal
for synthesis


Order number Packaging Quantity Price €
AC32321 Glass bottle 250 ml 35.78


Product information
Synonyms 1,1-Dimethoxy-2-propanone, α,α-Dimethoxyacetone, Methylglyoxal 1,1-dimethyl acetal
Hill Formula C5H10O3
Chemical formula CH3COCH(OCH3)2
HS Code 2914 50 00
EC number 228-735-4
Molar mass 118.13 g/mol
CAS number 6342-56-9


Chemical and physical data
Ignition temperature 285 °C
Solubility 350 g/l (20 °C)
Melting point -57 °C
Molar mass 118.13 g/mol
Density 0.99 g/cm3 (20 °C)
pH value 7 (H2O, 20 °C)
Boiling point 136 – 138 °C
Vapor pressure 11 hPa (20 °C)
Explosion limit 2.5 – 12.3 %(V)
Flash point 34 °C
Refractive index 1.3989 (20 °C, 589 nm)


Safety information according to GHS
Hazard Statement(s) H226: Flammable liquid and vapour.
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.
Signal Word Danger
Hazard Pictogram(s)
Storage class 3 Flammable Liquids
WGK WGK 1 slightly 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 10-36/38
Flammable.Irritating to eyes and skin.
S Phrase S 26
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Categories of danger flammable, irritant
Hazard Symbol



Transport information
Declaration (transport by sea) IMDG-Code UN 1224 KETONES, LIQUID, N.O.S.(PYRUVALDEHYDE-1,1-(DIMETHYLACETAL)), 3, III
Declaration (transport by air) IATA-DGR UN 1224 KETONES, LIQUID, N.O.S.(PYRUVALDEHYDE-1,1-(DIMETHYLACETAL)), 3, III


Toxicological data
LD 50 oral LD50 rat 6800 mg/kg


Assay (GC, area%) ≥ 97 %
Identity (IR) passes test