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  • 8.41168 - 3-(Methylthio)-propionaldehyde

8.41168 EMD Millipore


3-(Methylthio)-propionaldehyde for synthesis. CAS 3268-49-3, molar mass 104.17 g/mol., for synthesis

Synonym: Methional

  • CAS Number 3268-49-3

  • Linear Formula C₄H₈OS

  • Molecular Weight 104.17 g/mol

  •  EC Number 221-882-5



Related Categories Biochemicals and Reagents More...
packaging   10 ml in Glass bottle (8411680010)
bp   165 - 166 °C (1013 hPa)
expl. lim.     1.3 - 26.1 %(V)
vapor pressure   0.53 hPa (20 °C)
solubility   <=75 g/l
density   1.052 g/cm3 (20 °C)
flash point   63 °C
mp   -58 °C
LD 50 oral   LD50 Rat 755 mg/kg
LD 50 dermal   LD50 Rat 1650 mg/kg
shipped in   ambient
storage temp.   Store at <= 20°C.
specifications   Assay (GC, area%): ≥ 98.0 % (a/a)
  Identity (IR): passes test

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Safety Information

HS Code 
2930 90 98
Hazard Statement(s) 
H302 + H312 + H332: Harmful if swallowed, in contact with skin or if inhaled
H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H319: Causes serious eye irritation.
Precautionary Statement(s) 
P280: Wear protective gloves.
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.
Storage class 
6.1C Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK 1 slightly water endangering
Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E.
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Harmful  Harmful
Declaration (railroad and road) ADR, RID 
UN 2785 , 6.1, III
Declaration (transport by air) IATA-DGR 
UN 2785 , 6.1, III
Declaration (transport by sea) IMDG-Code 
UN 2785 , 6.1, III
Categories of danger 
harmful, irritant, sensitizing
R Phrase 
R 20/21/22-36/38-43
Harmful by inhalation, in contact with skin and if swallowed.Irritating to eyes and skin.May cause sensitisation by skin contact.
S Phrase 
S 36/37
Wear suitable protective clothing and gloves.
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