4-Mercaptobenzoic acid
- CAS NO.：1074-36-8
- Empirical Formula: C7H6O2S
- Molecular Weight: 154.19
- MDL number: MFCD00016617
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:16:20
What is 4-Mercaptobenzoic acid?
Chemical properties
Cream Colour Crystalline Solid
The Uses of 4-Mercaptobenzoic acid
Gold nanostructures functionalized with 4-Mercaptobenzoic acid (4-MBA) may exhibit improve catalytic activity. Several studies report 4-MBA as a model analyte for surface enhancement Raman scattering (SERS) substrates.
General Description
4-mercaptobenzoic acid (4-MBA) is a probe molecule with thiol and carboxylic groups that form a self-assembled monolayers (SAMs) which can be used for the development of surface enhanced raman spectroscopy (SERS) sensors.
Properties of 4-Mercaptobenzoic acid
| Melting point: | 215-224 °C (lit.) |
| Boiling point: | 314.3±25.0 °C(Predicted) |
| Density | 1.345±0.06 g/cm3(Predicted) |
| storage temp. | Hygroscopic, Refrigerator, Under Inert Atmosphere |
| solubility | soluble in Alcohol,Ether |
| form | powder to crystal |
| pka | 4.05±0.10(Predicted) |
| color | White to Yellow to Green |
| Stability: | Store Under Argon; Air and Temperature Sensitive |
| CAS DataBase Reference | 1074-36-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzoic acid, 4-mercapto-(1074-36-8) |
Safety information for 4-Mercaptobenzoic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4-Mercaptobenzoic acid
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