4-Mercaptophenylacetic acid
![]() | |
Names | |
---|---|
IUPAC name 2-(4-sulfanylphenyl)acetic acid | |
Preferred IUPAC name (4-Sulfanylphenyl)acetic acid | |
Other names 2-(4-Mercaptophenyl)acetic acid 4-Mercaptophenylacetic acid MPAA | |
Identifiers | |
3D model (JSmol) | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.156.056 |
PubChem CID | |
UNII | |
CompTox Dashboard (EPA) | |
| |
| |
Properties | |
HSC6H4CH2CO2H | |
Molar mass | 168.21 g/mol |
Hazards | |
GHS labelling: | |
![]() ![]() | |
Danger | |
H315, H318, H319, H335 | |
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P310, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
MPAA (4-Mercaptophenylacetic acid) is a redox buffer that increases the folding rate of disulfide-containing proteins.
MPAA is also used in native chemical ligation as a thiol catalyst.