2-EthylhexanalButyl ethyl acetaldehyde alias 
English 2-Ethylhexanal 
CAS # 123-05-7 
Dangerous goods code according to "Table Name of Dangerous Goods" is a high flash point flammable liquids, ID 33575. 
Molecular formula C8H16O 
Molecular weight 128.21 
Colorless liquid. Moderate special smell. Can be miscible with most organic solvents, slightly soluble in water. Relative density of 0.8205. Boiling point 163.4 ℃. Refractive index 1.4155. Flash point (open cup) 51.6 ℃. There are irritating. Often by adding a small amount of market goods (≤ 2%) of 2 - ethyl hexanoic acid as a stabilizer. 
For organic synthesis. 
This product should be sealed in cool place to preserve.