4-Methylphenylthioacetic acid
4-Methylphenylthioacetic acid (CAS: 3996-29-0; Formula: CH3C6H4SCH2CO2H; MW: 182.24) is a key organic building block. Characterised by its carboxylic acid and thioether functionalities, this compound is frequently employed in chemical synthesis. It serves as a valuable intermediate for creating more complex molecules in research and development settings. Tech Serve Solutions provides this chemical with an assay of 97%.
- IUPAC
- 2-(p-Tolylthio)acetic acid,4-Methylphenylthio acetic acid

Organic Synthesis Intermediate
Utilised as a versatile building block in the synthesis of novel organic compounds and complex molecular structures. Its reactive functional groups allow for diverse chemical transformations.
Research and Development
A standard reagent in academic and industrial R&D laboratories for exploring new chemical pathways and developing innovative materials. Its structure lends itself to various derivatisation reactions.
Pharmaceutical Intermediate
Employed in the early stages of pharmaceutical research for the synthesis of potential drug candidates. Its application lies in the construction of core molecular scaffolds.
| Molecular weight | 182.24 |
|---|---|
| Linear formula | CH3C6H4SCH2CO2H |
| Assay | 97% |
| Melting point | 79-83 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| 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-Methylphenylthioacetic acid used for?
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4-Methylphenylthioacetic acid is primarily used as a building block and intermediate in organic synthesis, particularly in research and development and for the preparation of pharmaceutical intermediates.
What is the CAS number and molecular formula for 4-Methylphenylthioacetic acid?
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The CAS number is 3996-29-0 and the molecular formula is CH3C6H4SCH2CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Methylphenylthioacetic acid with an assay of 97%. This product is suitable for general laboratory and research use. TSS does not represent this product as USP, BP, or EP grade.
What are the safety and handling recommendations for 4-Methylphenylthioacetic acid?
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Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. It has a WGK rating of 3 in Germany, indicating a significant hazard.
Is 4-Methylphenylthioacetic acid a controlled substance?
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Based on the provided data, there is no indication that 4-Methylphenylthioacetic acid is a controlled substance.
How is 4-Methylphenylthioacetic acid packed, shipped, and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, adhering to all relevant regulations for packing, shipping, and exporting 4-Methylphenylthioacetic acid worldwide.
How can I request a sample or quote for 4-Methylphenylthioacetic acid?
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To request a sample or a quote, please contact the Tech Serve Solutions sales team via the website or direct contact details.
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