4-MERCAPTOPHENYLACETIC ACID
- CAS NO.:39161-84-7
- Empirical Formula: C8H8O2S
- Molecular Weight: 168.21
- MDL number: MFCD00797617
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:19:01
What is 4-MERCAPTOPHENYLACETIC ACID?
Chemical properties
4-MERCAPTOPHENYLACETIC ACID is White Powder
The Uses of 4-MERCAPTOPHENYLACETIC ACID
4-MERCAPTOPHENYLACETIC ACID is a redox buffer that increases the folding rate of disulfide-containing proteins realative to traditional buffers such as glutathione and glutathione-disulfide. A useful synthetic intermediate for the preparation of novel antiinflammatory agents.
The Uses of 4-MERCAPTOPHENYLACETIC ACID
4-Mercaptophenylacetic acid has been used in the preparation of small ubiquitin-like modifier peptides from bis(2-sulfanylethyl)amido peptide via sequential native chemical ligation.
It can be used:
- On-resin preparation of peptide-α thiophenylesters which are used in a chemical ligation process for the chemical synthesis of peptides.
- In one pot deprotection of (acetamido-methyl)cysteine following native chemical ligation and/or desulfurization method for the preparation of peptides.
- Palladium facilitated deprotection of N-terminal cysteine through native chemical ligation method for the preparation of synthetically challenging proteins.
What are the applications of Application
4-Mercaptophenylacetic Acid is a redox buffer that increases the folding rate of disulfide-containing proteins
Properties of 4-MERCAPTOPHENYLACETIC ACID
| Melting point: | 105-109 °C (lit.) |
| Boiling point: | 336.0±17.0 °C(Predicted) |
| Density | 1.299±0.06 g/cm3(Predicted) |
| storage temp. | 2-8°C |
| solubility | Acetonitrile (Slightly), DMSO (Slightly) |
| pka | 4.21±0.10(Predicted) |
| form | Solid |
| color | Off-White |
| Water Solubility | Slightly soluble in water. Soluble in Dichloromethane, Ethanol and Methanol |
| Sensitive | Air Sensitive |
Safety information for 4-MERCAPTOPHENYLACETIC ACID
| Signal word | Danger |
| Pictogram(s) |
![]() Corrosion Corrosives GHS05 ![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. |
Computed Descriptors for 4-MERCAPTOPHENYLACETIC ACID
4-MERCAPTOPHENYLACETIC ACID manufacturer
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![[4-(ETHYLSULFONYL)PHENYL]ACETIC ACID](https://img.chemicalbook.in/StructureFile/ChemBookStructure5/GIF/CB1327221.gif)






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