8.40031 EMD Millipore


n-Butylethylether for synthesis. CAS 628-81-9, pH (H₂O, 20 °C) neutral., for synthesis

Synonym: 1-Ethoxy-butane

  • CAS Number 628-81-9

  • Linear Formula C₆H₁₄O

  • Molecular Weight 102.17 g/mol

  •  EC Number 211-055-7



Related Categories Biochemicals and Reagents, Building Blocks, Chemical Synthesis, Ethers, Organic Building Blocks,
packaging   25 ml in Glass bottle (8400310025)
bp   93 °C (1013 hPa)
expl. lim.     0.8 - 18.5 %(V)
vapor pressure   58 hPa (20 °C)
solubility   3.8 g/l
density   0.75 g/cm3 (20 °C)
flash point   -13 °C
autoignition temp.   184 °C
mp   -124 °C
LD 50 oral   LD50 Rat 1870 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (GC, area%): ≥ 98.0 % (a/a)
  Density (d 20 °C/ 4 °C): 0.747 - 0.752
  Identity (IR): passes test

Price and Availability

Ask us for bulk and customization needs

My Chemicals
Safety & Documentation

Safety Information

HS Code 
2909 19 90
Hazard Statement(s) 
H225: Highly flammable liquid and vapour.
H302: Harmful if swallowed.
EUH019: May form explosive peroxides.
Precautionary Statement(s) 
P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P240: Ground/bond container and receiving equipment.
P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
Storage class 
3 Flammable liquids
WGK 1 slightly water endangering
Strongly contaminated halogen-free organic solvents: container A.
Hazard Pictogram(s) 
GHS02  GHS02
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Flammable  Flammable
Hazard Symbols 
Harmful  Harmful
Declaration (railroad and road) ADR, RID 
UN 1179 , 3, II
Declaration (transport by air) IATA-DGR 
UN 1179 , 3, II
Declaration (transport by sea) IMDG-Code 
UN 1179 , 3, II
Categories of danger 
highly flammable, harmful
R Phrase 
R 11-19-22
Highly flammable.May form explosive peroxides.Harmful if swallowed.
S Phrase 
S 7/9-16-23-29-33
Keep container tightly closed and in a well-ventilated place.Keep away from sources of ignition - No smoking.Do not breathe vapour.Do not empty into drains.Take precautionary measures against static discharges.
Protocols & Articles
Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?