Supplier Page from Thermo Fisher Scientific for 2-Cyclopentene-1-acetic acid, tech. 90%, remainder mainly 3-cyclopentene-1-acetic acid
2-Ethoxyethyl ether, 98+%, extra pure from Thermo Fisher Scientific
2-Ethyl-1-hexanol, 99% from Thermo Fisher Scientific
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Emodin, 95%, tech from Thermo Fisher Scientific