Tetrahydrofurfuryl alcohol (THFA) is an organic compound used as a solvent in many applications and products intended for both professionals (a chemical intermediate in the chemical and pharmaceutical industries, a solvent in pesticides) and consumers. Tetrahydrofolic acid (THFA), or tetrahydrofolate, is a folic acid derivative. Tetrahydrofurfuryl alcohol (THFA) is an organic compound with the formula HOCH2C4H7O. Tetrahydro-2-furanmethanol, also known as thfa or 2-hydroxymethyl- tetrahydrofuran, belongs to the class of organic compounds known as tetrahydrofurans. The biologically active form of folic acid is tetrahydrofolic acid (THFA), which is derived by the 2-step reduction of folate involving dihydrofolate. Tetrahydrofurfuryl Alcohol (THFA) from Furfuryl Alcohol THFA is a green (EPA approved) solvent and a chemical intermediate for the pharmaceutical and chemical.