| Melting point: |
-29 °C (lit.) |
| Boiling point: |
175-177 °C (lit.) |
| Density |
0.925 g/mL at 20 °C (lit.) |
| vapor pressure |
0.38 mm Hg ( 20 °C) |
| FEMA |
3102 | ISOVALERIC ACID |
| refractive index |
n20/D 1.403(lit.) |
| Flash point: |
159 °F |
| storage temp. |
Store below +30°C. |
| solubility |
48g/l |
| form |
Liquid |
| pka |
4.77(at 25℃) |
| color |
Clear colorless to slightly yellow |
| Specific Gravity |
0.928 (20/20℃) |
| Odor |
at 1.00 % in propylene glycol. sour stinky feet sweaty cheese tropical |
| PH |
3.92(1 mM solution);3.4(10 mM solution);2.89(100 mM solution); |
| explosive limit |
1.5-6.8%(V) |
| Odor Type |
cheesy |
| biological source |
synthetic |
| Water Solubility |
25 g/L (20 ºC) |
| Merck |
14,5231 |
| JECFA Number |
259 |
| BRN |
1098522 |
| Henry's Law Constant |
2.7×101 mol/(m3Pa) at 25℃, Kim and Kim (2016) |
| Dielectric constant |
2.6（20℃） |
| Major Application |
flavors and fragrances |
| Cosmetics Ingredients Functions |
PERFUMING |
| InChI |
1S/C5H10O2/c1-4(2)3-5(6)7/h4H,3H2,1-2H3,(H,6,7) |
| InChIKey |
GWYFCOCPABKNJV-UHFFFAOYSA-N |
| SMILES |
CC(C)CC(O)=O |
| LogP |
1.7 at 25℃ |
| CAS DataBase Reference |
503-74-2(CAS DataBase Reference) |
| NIST Chemistry Reference |
Butanoic acid, 3-methyl-(503-74-2) |
| EPA Substance Registry System |
Isovaleric acid (503-74-2) |