2-Ethylhexanoic acid
ALDRICH/538701 - ≥99%
Synonym: 2-Ethylcaproic acid
CAS Number: 149-57-5
Empirical Formula (Hill Notation): C8H16O2
Molecular Weight: 144.21
EC Number: 205-743-6
MDL Number: MFCD00002675
Linear Formula: CH3(CH2)3CH(C2H5)CO2H
Product Type: Chemical
| assay | ≥99% |
| autoignition temp. | 699 °F |
| bp | 228 °C (lit.) |
| density | 0.903 g/mL at 25 °C (lit.) |
| expl. lim. | 1.04 %, 135 °F |
| 8.64 %, 188 °F | |
| functional group | carboxylic acid |
| InChI | 1S/C8H16O2/c1-3-5-6-7(4-2 |
| InChI key | OBETXYAYXDNJHR-UHFFFAOYSA |
| Quality Level | 200 ![]() |
| refractive index | n |
| SMILES string | CCCCC(CC)C(O)=O |
| vapor density | 4.98 (vs air) |
| vapor pressure | <0.01 mmHg ( 20 °C) |
| 10 mmHg ( 115 °C) |
| Application: | • A review of the environmental fate and aquatic effects of a series of C4 and C8 oxo-process chemicals.: This review assesses the environmental impact of C4 and C8 oxo-process chemicals, including 2-Ethylhexanoic acid, detailing their degradation, persistence, and effects on aquatic ecosystems (Staples, 2001 ![]() |
| General description: | 2-Ethylhexanoic acid (EHXA, 2-EHA) is an industrially important aliphatic carboxylic acid. It is widely employed as a stabilizer and a wood preservative. It has various industrial applications, such as: • coolant in automotives • synthetic lubricant • wetting agent • co-solvent • drying of paints • defoaming agent in pesticides |
| Packaging: | 1 L in glass bottle |
| Packaging: | 100 mL in glass bottle |
| Packaging: | 20 L in poly drum |
| Symbol | GHS08 |
| Signal word | Warning |
| Hazard statements | H361d |
| Precautionary statements | P280 |
| Hazard Codes | Xn |
| Risk Statements | 63 |
| Safety Statements | 36/37 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | 237.2 °F - closed cup |
| Flash Point(C) | 114 °C - closed cup |
| Purity | ≥99% |
| bp | 228 °C (lit.) |
| Density | 0.903 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |


