4-(Methylmercapto)phenol
4-(Methylmercapto)phenol (CAS 1073-72-9), with the molecular formula CH3SC6H4OH and a molecular weight of 140.20, is a specialised organic compound. Its structure combines a phenol ring with a methyl mercapto group, making it a valuable intermediate in organic synthesis. This compound serves as a key building block for the development of more complex molecules within the chemical and pharmaceutical industries, contributing to advanced research and product development.
- IUPAC
- 4-Hydroxythioanisole

Organic Synthesis Intermediate
Utilised as a versatile building block in the synthesis of more complex organic molecules. Its dual functionality allows for various chemical transformations, making it important in multi-step synthetic pathways.
Pharmaceutical Research
A key component in the research and development of novel pharmaceutical compounds. Its unique structure can be incorporated into drug candidates to explore new therapeutic properties.
Chemical Reagent
Employed as a reagent in laboratory settings for various chemical reactions and analytical procedures. Its specific chemical properties facilitate targeted synthetic outcomes.
| Molecular weight | 140.20 |
|---|---|
| Linear formula | CH3SC6H4OH |
| Assay | 98% |
| Boiling point | 153-156 °C/20 mmHg(lit.) |
| Melting point | 84-86(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3335 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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-(Methylmercapto)phenol used for?
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4-(Methylmercapto)phenol (CAS 1073-72-9) is primarily used as a building block in organic synthesis and as an intermediate in pharmaceutical research. It serves as a valuable reagent in chemical laboratories for developing more complex molecules.
What are the CAS number and chemical formula for 4-(Methylmercapto)phenol?
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The CAS number for 4-(Methylmercapto)phenol is 1073-72-9, and its chemical formula is CH3SC6H4OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-(Methylmercapto)phenol with an assay of 98%. We do not represent this product as USP, BP, or EP grade. For specific purity requirements, please contact our sales team.
How should 4-(Methylmercapto)phenol be handled safely?
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Handling 4-(Methylmercapto)phenol requires caution. It is classified with GHS07 signal word 'Warning' and hazard statements H315, H319, H335, indicating it causes skin irritation, serious eye irritation, and may cause respiratory irritation. Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Ensure adequate ventilation and avoid breathing dust.
How is 4-(Methylmercapto)phenol packed and shipped?
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4-(Methylmercapto)phenol is packed securely to maintain its integrity during transit. We export this chemical globally, adhering to all relevant shipping regulations. Please inquire for specific packaging details.
How can I request a quote or sample?
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To request a quote or sample of 4-(Methylmercapto)phenol, please visit the product page on our website and use the 'Request Quote' or 'Request Sample' option, or contact our dedicated sales team directly.
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