Acetone thiosemicarbazone

Acetone thiosemicarbazone
Names
	Preferred IUPAC name 2-(Propan-2-ylidene)hydrazine-1-carbothioamide
	Other names (Propan-2-ylideneamino)thiourea; Acetone thiosemicarbazide; Dimethyl ketone thiosemicarbazone; Thiosemicarbazone acetone; NSC 711; 2-(1-Methylethylidene)hydrazinecarbothioamide
Identifiers
CAS Number	1752-30-3 ;
3D model (JSmol)	Interactive image; Interactive image;
Abbreviations	ATSC
ChEMBL	ChEMBL500557 ;
ChemSpider	2050659 ;
ECHA InfoCard	100.015.580
EC Number	217-137-9;
PubChem CID	2770166;
UNII	C3U604L47F ;
CompTox Dashboard (EPA)	DTXSID6044480 ;
	InChI InChI=1S/C4H9N3S/c1-3(2)6-7-4(5)8/h1-2H3,(H3,5,7,8) Key: FQUDPIIGGVBZEQ-UHFFFAOYSA-N ; InChI=1/C4H9N3S/c1-3(2)6-7-4(5)8/h1-2H3,(H3,5,7,8) Key: FQUDPIIGGVBZEQ-UHFFFAOYAR;
	SMILES CC(=NNC(=S)N)C; S=C(N)N/N=C(\C)C;
Properties
Chemical formula	C4H9N3S
Molar mass	131.20 g·mol−1
Appearance	White crystals
Melting point	172 to 175 °C (342 to 347 °F; 445 to 448 K)
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Toxic
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H300, H312, H330
Precautionary statements	P260, P264, P270, P271, P280, P284, P301+P310, P302+P352, P304+P340, P310, P312, P320, P321, P322, P330, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)	4
Safety data sheet (SDS)	MSDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Acetone thiosemicarbazone is a chemical compound with the molecular formula C₄H₉N₃S. It is used in the plastics industry in the manufacture of polyvinyl chloride (PVC) to terminate the polymerization process.