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19270 Sigma-Aldrich

Butyric anhydride

purum, ≥97.0% (NT)

Synonym: Butanoic anhydride

  • CAS Number 106-31-0

  • Linear Formula (CH3CH2CH2CO)2O

  • Molecular Weight 158.19

  •  Beilstein Registry Number 1099474

  •  EC Number 203-383-4

  •  MDL number MFCD00009389

  •  PubChem Substance ID 329751708

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Properties

Related Categories Anhydrides, Biochemicals and Reagents, Building Blocks, Carbonyl Compounds, Carboxylic Acid Anhydrides,
vapor density   5.45 (vs air)
vapor pressure   10 mmHg ( 79.5 °C)
InChI Key   YHASWHZGWUONAO-UHFFFAOYSA-N
grade   purum
assay   ≥97.0% (NT)
autoignition temp.   535 °F
expl. lim.   1.1 %, 104 °F
  7.6 %, 144 °F
refractive index   n20/D 1.413(lit.)
  n20/D 1.413
bp   198-199 °C(lit.)
mp   −75-−66 °C(lit.)
solubility   alcohol: soluble (with decomposition)(lit.)
  diethyl ether: soluble(lit.)
  water: soluble (with decomposition)(lit.)
density   0.967 g/mL at 25 °C(lit.)

Description

Application

Butyric anhydride was used in the synthesis of:
• dibutyrylchitin, a lipophilic chitin diester
• N-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-n-butyramide
• butyric-ester derivatives of hyaluronic acid

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Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
Precautionary statements 
Supplemental Hazard Statements 
Reacts violently with water.
RIDADR 
UN 2739 8 / PGIII
WGK Germany 
1
RTECS 
ET7090000
Flash Point(F) 
188.6 °F
Flash Point(C) 
87 °C
Protocols & Articles
Peer-Reviewed Papers
15

References

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