IUPAC name
Other names
N-Phenyl-hydrazinecarbothioamide, USAF-EK-5426, USAF-EL-45
5351-69-9 N
3D model (Jmol) Interactive image
Interactive image
ChemSpider 638258 YesY
ECHA InfoCard 100.023.935
PubChem 730679
Molar mass 167.23 g·mol−1
Appearance White to light yellow crystalline powder
Melting point 138 to 141 °C (280 to 286 °F; 411 to 414 K)
Boiling point 308 °C (586 °F; 581 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

4-Phenylthiosemicarbazide (4-PTSC) is a thiosemicarbazide used as an agricultural chemical and pesticide. It also possesses antibacterial properties attributed to electron delocalisation in the thiosemicarbazide moiety.[2]


  1. Semicarbazide, 4-phenyl-3-thio
  2. Nandi, Asok Kumar; Siddhartha Chaudhuri; Sunil Kumar Mazumdar; Saktiprosad Ghosh (1984). "Effect of chlorine substitution on the structure and activity of 4-phenylthiosemicarbazide: crystal and molecular structure of 4-(4-chlorophenyl)thiosemicarbazide". J. Chem. Soc., Perkin Trans. 2: 1729–1733. doi:10.1039/P29840001729.

External links

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