Thioglycolic acid

Thioglycolic acid
Names
	Preferred IUPAC name Sulfanylacetic acid
	Other names 2-Sulfanylacetic acid; 2-Mercaptoacetic acid; Acetyl mercaptan; Mercaptoacetate; Mercaptoacetic acid; Thioglycolic acid; Thiovanic acid
Identifiers
CAS Number	68-11-1 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:30065 ;
ChEMBL	ChEMBL116455 ;
ChemSpider	1101 ;
ECHA InfoCard	100.000.616
KEGG	C02086 ;
PubChem CID	1133;
UNII	7857H94KHM ;
CompTox Dashboard (EPA)	DTXSID8026141 ;
	InChI InChI=1S/C2H4O2S/c3-2(4)1-5/h5H,1H2,(H,3,4) Key: CWERGRDVMFNCDR-UHFFFAOYSA-N ; InChI=1/C2H4O2S/c3-2(4)1-5/h5H,1H2,(H,3,4) Key: CWERGRDVMFNCDR-UHFFFAOYAP;
	SMILES C(C(=O)O)S;
Properties
Chemical formula	C2H4O2S
Molar mass	92.11 g·mol−1
Appearance	colorless, clear liquid
Odor	strong, disagreeable
Density	1.32 g/cm3
Melting point	−16 °C (3 °F; 257 K)
Boiling point	96 °C (205 °F; 369 K) at 5 mmHg
Solubility in water	miscible
Vapor pressure	10 mmHg (17.8 °C)
Magnetic susceptibility (χ)	−50.0·10−6 cm3/mol
Hazards
	GHS labelling:
Pictograms
Hazard statements	H301+H311+H331, H314
Flash point	> 110 °C; 230 °F; 383 K
Explosive limits	5.9%
	NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	TWA 1 ppm (4 mg/m3) [skin]
IDLH (Immediate danger)	N.D.
	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

Thioglycolic acid (TGA) is the organic compound HSCH₂CO₂H. TGA is often called mercaptoacetic acid (MAA). It contains both a thiol (mercaptan) and carboxylic acid functional groups. It is a colorless liquid with a strongly unpleasant odor. TGA is miscible with polar organic solvents.

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