1-Amidino-2-thiourea 1-Amidinothiourea 2114-02-5 AI3-62541 Amidinothiourea EINECS 218-308-0 GUANYLTHIOUREA Guthimin Guthimine Gutimine N-Amidinothiourea NSC 55743 Thiodicyanodiamidine Thiourea, (aminoiminomethyl)- Urea, 1-amidino-2-thio- Urea, 1-guanyl-2-thio-