Thioacetic acid

Thioacetic acid
Names
	Preferred IUPAC name Ethanethioic S-acid
	Other names Thioacetic S-acid; Thiolacetic acid
Identifiers
CAS Number	507-09-5 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:46800 ;
ChemSpider	10052 ;
ECHA InfoCard	100.007.331
KEGG	C01857 ;
PubChem CID	10484;
UNII	PS92MLC0FQ ;
CompTox Dashboard (EPA)	DTXSID5060142 ;
	InChI InChI=1S/C2H4OS/c1-2(3)4/h1H3,(H,3,4) Key: DUYAAUVXQSMXQP-UHFFFAOYSA-N ; InChI=1/C2H4OS/c1-2(3)4/h1H3,(H,3,4) Key: DUYAAUVXQSMXQP-UHFFFAOYAO;
	SMILES O=C(S)C;
Properties
Chemical formula	CH3C(O)SH
Molar mass	76.11756 g/mol
Appearance	Transparent, colorless to light yellow liquid
Odor	Unpleasant, strong thiol-like
Density	1.08 g/mL
Melting point	−58 °C (−72 °F; 215 K)
Boiling point	93 °C (199 °F; 366 K)
Magnetic susceptibility (χ)	−38.4·10−6 cm3/mol
Refractive index (nD)	1.465
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	May cause severe skin and eye burns. Highly flammable liquid.
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H301, H302, H314, H317
Precautionary statements	P210, P233, P240, P241, P242, P243, P260, P261, P264, P264+P265, P270, P272, P280, P301+P316, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P317, P321, P330, P333+P317, P362+P364, P363, P370+P378, P403+P235, P405, P501
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	75 mg/kg (mouse, intraperitoneal)
Safety data sheet (SDS)	Fischer Scientific
	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

Thioacetic acid is an organosulfur compound with the molecular formula CH₃C(O)SH. It is a thioic acid: the sulfur analogue of acetic acid (CH₃C(O)OH), as implied by the thio- prefix. It is a yellow liquid with a strong thiol-like odor. It is used in organic synthesis for the introduction of thiol groups (−SH) in molecules.