10598-87-5 2-Semicarbazidoacetic acid, 1-(5-nitrofurfurylidene)-, ethyl ester Acetic acid, [1-carbamoyl-2-(5-nitrofurfurylidene)hydrazino]-, ethyl ester Ethyl 1-(5-nitrofurfurylidene)-2-semicarbazidoacetate NSC53258 WLN: T5OJ BNW E1UNNVZ1VO2