4-Bromobenzyl mercaptan
4-Bromobenzyl mercaptan (CAS: 19552-10-4), with the molecular formula BrC6H4CH2SH and a molecular weight of 203.10 g/mol, is a key organic building block. This thiol compound is primarily utilised in chemical synthesis for the introduction of sulfur-containing functional groups in organic molecules. Its structure, featuring both a brominated aromatic ring and a mercaptan moiety, makes it a versatile intermediate in the development of more complex chemical entities.
- IUPAC
- (4-Bromophenyl)methanethiol,4-Bromo-α-toluenethiol
- Synonyms
- (4-Bromophenyl)methanethiol4-Bromo-alpha-toluenethiol

Organic Synthesis Intermediate
4-Bromobenzyl mercaptan serves as a valuable intermediate in organic synthesis. It is employed to introduce the 4-bromobenzylthio group into various molecular frameworks, facilitating the construction of novel organic compounds for research and development.
Pharmaceutical Research
This compound is used in the synthesis of potential drug candidates and pharmaceutical intermediates. The presence of the bromine atom allows for further functionalization via cross-coupling reactions, while the thiol group can be involved in various sulfur-based reactions.
Material Science
In material science, mercaptans like 4-Bromobenzyl mercaptan can be used in the modification of surfaces or the synthesis of polymers, potentially imparting unique properties due to the brominated aromatic structure.
| Molecular weight | 203.10 |
|---|---|
| Linear formula | BrC6H4CH2SH |
| Assay | 97% |
| Melting point | 27-31 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 3335 |
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4-Bromobenzyl mercaptan used for?
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4-Bromobenzyl mercaptan is primarily used as an intermediate in organic synthesis, particularly in pharmaceutical research and material science for the introduction of sulfur-containing functional groups and brominated aromatic moieties.
What are the CAS number and molecular formula for 4-Bromobenzyl mercaptan?
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The CAS number for 4-Bromobenzyl mercaptan is 19552-10-4, and its molecular formula is BrC6H4CH2SH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromobenzyl mercaptan with a minimum assay of 97%. This product is supplied for research and development purposes and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 4-Bromobenzyl mercaptan be handled safely?
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Handling 4-Bromobenzyl mercaptan requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used. It is classified under UN 3335 and has a WGK rating of 3 in Germany, indicating it is hazardous to water.
Is 4-Bromobenzyl mercaptan a controlled substance?
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The provided data does not indicate that 4-Bromobenzyl mercaptan is a controlled substance.
How is 4-Bromobenzyl mercaptan packed, shipped, and exported?
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Tech Serve Solutions adheres to strict international shipping regulations for chemicals. Specific packaging details are available upon request, and we are experienced in exporting fine chemicals globally.
How can I request a sample or a quote for 4-Bromobenzyl mercaptan?
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To request a sample or a quote for 4-Bromobenzyl mercaptan, please contact our sales department through the website or by phone, providing your contact details and the quantity required.
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