1-Ethyl-1-(1-naphthyl)-2-thiourea 3-12-00-02947 (Beilstein Handbook Reference) 4366-50-1 BRN 2110695 Thiourea, N-ethyl-N-1-naphthalenyl- UREA, 1-ETHYL-1-(1-NAPHTHYL)-2-THIO- USAF EK-7162