4-Mercaptobenzoic acid, CAS No. 1074-36-8

Welcome to iChemical.com!

In the below part, please select the country you want us to ship to: Please note that once you've selected a shipping country, all pricing information on our website will be automatically updated to include door-to-door shipping to the country you specified.

North America

South America

Africa

Europe

Asia

Oceania

1074-36-8

Catalog No. EBD51383

CAS 1074-36-8

Name 4-Mercaptobenzoic acid

Get Quote

Basic Information

Synonyms: 4-mercaptobenzoicacid Mercaptobenzoicacid 4-sulfanylbenzoicacid (4-thioxocyclohexa-2,5-dien-1-ylidene)methanediolate p-mercaptobenzoicacid 4-carboxybenzenethiol benzoicacid,p-mercapto- p-mercaptobenzoicacid4-mercaptobenzoicacid mercaptobenzoicacid,4- 4-mercaptobenzoicacid,technicalgrade

Molecular Formula: C7H6O2S

Molecular Weight: 154.19

MDL Number: MFCD00016617

Categories: Materials Chemistry > Optoelectronic and Organic Semiconductor Materials > Dye Precursors Materials Chemistry > Surface Modification and Functional Coatings > Surface Functional Molecules Synthetic Chemistry > Organic Building Blocks > Sulfides and Thioethers

Product Description:

4-Mercaptobenzoic acid is an aromatic compound featuring both a thiol (-SH) and a carboxylic acid (-COOH) functional group on a benzene ring. This bifunctional structure makes it a versatile building block in materials science and surface chemistry. Its primary applications are in the field of functional materials. It serves as a key precursor for synthesizing organic dyes and pigments, particularly azo dyes, due to its ability to act as a coupling component. More importantly, it is widely used as a surface modifier and self-assembled monolayer (SAM) forming agent on gold and other metal surfaces. The thiol group provides strong chemisorption to metals, while the carboxylic acid group allows for further functionalization or imparts specific surface properties such as wettability control or as an anchor for biomolecule immobilization. Additionally, it finds use in the synthesis of metal-organic frameworks (MOFs) and coordination polymers, leveraging its dual donor sites. As a chemical intermediate, it is employed in the preparation of various sulfur-containing organic compounds and ligands.

Physical Properties

Melting Point: 215-224 °C(lit.)

Boiling Point: 314.278 °C at 760 mmHg

Flash Point: 143.871 °C

Density: 1.346 g/cm3

Safety Information

Packing Level:

Hazard Category:

Transport Codes: 3335

Analytical Data

Appearance: Cream colour crystalline solid