8.22115 EMD Millipore

Dimethyl oxalate

Dimethyl oxalate for synthesis. CAS 553-90-2, chemical formula CH₃OOCCOOCH₃., for synthesis

Synonym: Oxalic acid dimethyl ester, Methyl oxalate

  • CAS Number 553-90-2

  • Linear Formula C₄H₆O₄

  • Molecular Weight 118.08 g/mol

  •  EC Number 209-053-6



Related Categories Biochemicals and Reagents More...
packaging   25 kg in Plastic drum (8221159025)
  250 g in Plastic bottle (8221150250)
bp   163 - 164 °C (1013 hPa)
vapor pressure   3 hPa (20 °C)
solubility   60 g/l
density   1.15 g/cm3 (54 °C)
flash point   75 °C
autoignition temp.   480 °C
mp   50 - 53 °C
pH   1 (60 g/l, H₂O, 20 °C)
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (GC, area%): ≥ 99.0 % (a/a)
  Melting range (lower value): ≥ 52 °C
  Melting range (upper value): ≤ 55 °C
  Identity (IR): passes test

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Safety Information

HS Code 
2917 11 00
Hazard Statement(s) 
H319: Causes serious eye irritation.
Precautionary Statement(s) 
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 
10 - 13 Other liquids and solids
WGK 3 highly water endangering
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.
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Irritant  Irritant
Categories of danger 
R Phrase 
R 36
Irritating to eyes.
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