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 | |
3D model (JSmol) |
|
| 506166 | |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| DrugBank | |
| ECHA InfoCard | 100.000.616 |
| EC Number |
|
| 101048 | |
| KEGG | |
PubChem CID |
|
| RTECS number |
|
| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| 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 |
| miscible | |
| Vapor pressure | 10 mmHg (17.8 °C) |
| −50.0·10−6 cm3/mol | |
| Hazards | |
| GHS labelling: | |
| H301+H311+H331, H314 | |
| P260, P261, P262, P264, P264+P265, P270, P271, P272, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P320, P321, P330, P333+P317, P361+P364, P362+P364, P363, P403+P233, P405, P501 | |
| 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).
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.