1-(p-Hydroxybenzylidene)thiosemicarbazide 4-Hydroxybenzaldehyde thiosemicarbazone 5339-74-2 Benzaldehyde, p-hydroxy-, thiosemicarbazone Hydrazinecarbothioamide, 2-[(4-hydroxyphenyl)methylene]- NSC3555 Semicarbazide, 1-(p-hydroxybenzylidene)-3-thio- WLN: SUYZMNU1R DQ WLN: ZMYUS&MVR DQ p-Hydroxybenzaldehyde thiosemicarbazone