Butyl Carbitol is a trademark of Union Carbide. It is also known as Diethylene Glycol Monobutyl Ether or 2-Butoxy Ethoxy Ethanol on the MSDS sheet and data sheet.
Butyl Carbitol may not be compatible with some latex coatings. It may cause kickout or increased viscosity.
Test in a small way before adding to latex coatings.