8.00821 EMD Millipore

Pentanoic acid

Pentanoic acid for synthesis. CAS 109-52-4, EC Number 203-677-2, chemical formula CH₃(CH₂)₃COOH., for synthesis

Synonym: Valeric acid

  • CAS Number 109-52-4

  • Linear Formula C₅H₁₀O₂

  • Molecular Weight 102.13 g/mol

  •  EC Number 203-677-2



Related Categories Acids, Acids & Bases, Chemical Synthesis, Synthetic Reagents
packaging   100 ml in Glass bottle (8008210100)
bp   186 °C (1013 hPa)
expl. lim.     1.8 - 7.3 %(V)
vapor pressure   0.3 hPa (20 °C)
solubility   40 g/l
density   0.938 g/cm3 (20 °C)
flash point   86 °C
autoignition temp.   360 °C
mp   -32 °C
pH   2.7 (40 g/l, H₂O, 20 °C)
LD 50 dermal   LD50 Rabbit > 2000 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): 0.938 - 0.940
  Identity (IR): passes test

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Safety Information

HS Code 
2915 60 90
Hazard Statement(s) 
H314: Causes severe skin burns and eye damage.
H412: Harmful to aquatic life with long lasting effects.
Precautionary Statement(s) 
P273: Avoid release to the environment.
P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Storage class 
8A Combustible, corrosive hazardous materials
WGK 1 slightly water endangering
Liquid organic acids or solutions should be diluted, if necessary, and carefully neutralized with sodium hydrogen carbonate (Cat. No. 106323) or with sodium hydroxide (Cat. No 106462). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535).
Hazard Pictogram(s) 
GHS05  GHS05
Hazard Symbols 
Corrosive  Corrosive
Declaration (railroad and road) ADR, RID 
UN 3265 , 8, I
Declaration (transport by air) IATA-DGR 
UN 3265 , 8, I
Declaration (transport by sea) IMDG-Code 
UN 3265 , 8, I, Segregation Group: 1 (Acids)
Categories of danger 
corrosive, dangerous for the environment
R Phrase 
R 34-52/53
Causes burns.Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase 
S 26-36-45-61
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).Avoid release to the environment. Refer to special instructions/ Safety data sheets.
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