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58390 Sigma-Aldrich

Isobutyric anhydride

purum, ≥98.0% (GC)

Synonym: 2-Methylpropionic anhydride

  • CAS Number 97-72-3

  • Linear Formula (CH3)2CHCO2COCH(CH3)2

  • Molecular Weight 158.19

  •  Beilstein Registry Number 386267

  •  EC Number 202-603-6

  •  MDL number MFCD00008913

  •  PubChem Substance ID 24881086

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Properties

Related Categories Building Blocks, Carbonyl Compounds, Carboxylic Acid Anhydrides, Chemical Synthesis, Organic Building Blocks More...
vapor density   5.45 (vs air)
vapor pressure   10 mmHg ( 67 °C)
InChI Key   LSACYLWPPQLVSM-UHFFFAOYSA-N
grade   purum
assay   ≥98.0% (GC)
autoignition temp.   624 °F
expl. lim.   1.09 %, 87 °F
  7.7 %, 127 °F
refractive index   n20/D 1.406(lit.)
  n20/D 1.406
bp   182 °C(lit.)
mp   −56 °C(lit.)
density   0.954 g/mL at 25 °C(lit.)

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This product has been replaced by 245771-ALDRICH | Isobutyric anhydride 97%

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Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 2922 6.1(8) / PGIII
WGK Germany 
3
Flash Point(F) 
154.4 °F
Flash Point(C) 
68 °C
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245771 Isobutyric anhydride, 97%

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