Chemical name：5-Norbornene-2-carboxylic acid, butyl ester (endo- and exo- )
5-Norbornene-2-carboxylic butyl ester
Bicyclo [2.2.1]hept-5-ene-2-carboxylic acid, butyl ester
Butyl bicyclo[2.2.1]hept-5-ene-2-carboxylate
Molecular Formula：C12H18O2
Molecular Weight： 194.27
CAS NO.：        37981-18-3

Structure：

Properties:
Appearance:       Colorless to pale yellow liquid
Boiling point.      96 ℃ at 30 mmHg
210 ℃  at 760 mmHg
Moisture.          0.1% max.
APHA.            30 max.
Content.           99.0% min GC
Density            1.03 g/cm³ at 20 ℃

Usage：it can used as pharmaceutical intermediates, and electronic polymers.