21530 Sigma-Aldrich

Hexanoic acid

purum, ≥98.0% (GC)

Synonym: Acid C6, Caproic acid

  • CAS Number 142-62-1

  • Linear Formula CH3(CH2)4COOH

  • Molecular Weight 116.16

  •  Beilstein Registry Number 773837

  •  EC Number 205-550-7

  •  MDL number MFCD00004421

  •  PubChem Substance ID 329752165



Related Categories Biochemicals and Reagents, Building Blocks, C6, Carbonyl Compounds, Carboxylic Acids,
vapor density   4 (vs air)
vapor pressure   0.18 mmHg ( 20 °C)
grade   purum
assay   ≥98.0% (GC)
refractive index   n20/D 1.416
  n20/D 1.4161(lit.)
bp   202-203 °C(lit.)
  203-205 °C
mp   −4 °C (lit.)
solubility   water: slightly soluble 1.082g/100g(lit.)
  diethyl ether: soluble(lit.)
  ethanol: soluble(lit.)
density   0.927 g/mL at 25 °C(lit.)
Organoleptic   pungent
Safety & Documentation

Safety Information

Signal word 
Hazard statements 
UN 2829 8 / PGIII
WGK Germany 
Flash Point(F) 
215.6 °F
Flash Point(C) 
102 °C

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
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What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
What is the molarity of hexanoic acid?
Based on density of 0.927 g/mL and MW of 116.16, the effective molarity of this neat liquid is 7.98 M.
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