Chemistry:Acetone thiosemicarbazone

Short description: Chemical compound

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 Y
3D model (JSmol)	Interactive image Interactive image
Abbreviations	ATSC
ChEMBL	ChEMBL500557 Y
ChemSpider	2050659 Y
EC Number	217-137-9
PubChem CID	2770166
UNII	C3U604L47F Y
InChI InChI=1S/C4H9N3S/c1-3(2)6-7-4(5)8/h1-2H3,(H3,5,7,8) Y Key: FQUDPIIGGVBZEQ-UHFFFAOYSA-N Y 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
Main hazards	Toxic
Safety data sheet	MSDS
GHS pictograms
GHS Signal word	Danger
GHS hazard statements	H300, H312, H330
GHS precautionary statements	P260, P264, P270, P271, P280, P284, P301+310, P302+352, P304+340, P310, P312, P320, P321, P322, P330, P363, P403+233, P405, P501
NFPA 704 (fire diamond)	4
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

Tracking categories (test):

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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.

It is classified as an extremely hazardous substance in the United States as defined in Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act (42 U.S.C. 11002), and is subject to strict reporting requirements by facilities which produce, store, or use it in significant quantities.

Toxicity

Symptoms of exposure

Symptoms of acute exposure to acetone thiosemicarbazide may include nausea, vomiting, eye and skin irritation, excessive salivation, pulmonary edema, hyperglycemia, and seizures.