4-tert-Butyl-2-methylphenol
4-tert-Butyl-2-methylphenol (CAS: 98-27-1, C11H16O) is a substituted phenol with a molecular weight of 164.24 g/mol. This compound serves as a valuable building block in organic synthesis and chemical manufacturing. Its specific chemical structure lends itself to applications requiring a sterically hindered phenolic moiety, finding use in various industrial chemical processes.
- IUPAC
- 4-tert-Butyl-o-cresol
- Synonyms
- 4-tert-Butyl-o-cresol

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of more complex organic molecules. Its phenolic hydroxyl group and tert-butyl substituent offer unique reactivity for further chemical transformations.
Chemical Manufacturing
Employed in the production of various chemicals where its specific structural features are advantageous. This can include the synthesis of antioxidants, stabilisers, or specialty polymers.
Research and Development
A useful reagent in laboratory settings for exploring new synthetic pathways and developing novel compounds. Its availability as a building block facilitates research in diverse chemical fields.
| Molecular weight | 164.24 |
|---|---|
| Empirical formula | C11H16O |
| Assay | ≥97.0% (GC) |
| Impurities tested | ≤1.0% water |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2430 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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-tert-Butyl-2-methylphenol used for?
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4-tert-Butyl-2-methylphenol is primarily used as an intermediate in organic synthesis and in chemical manufacturing processes, particularly where its specific phenolic structure is required.
What are the CAS number and chemical formula for 4-tert-Butyl-2-methylphenol?
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The CAS number is 98-27-1 and the chemical formula is C11H16O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-tert-Butyl-2-methylphenol with a purity of ≥97.0% (GC). We do not represent this product as USP, BP, EP, or other pharmacopoeia grades. This is a technical/research grade material.
How should 4-tert-Butyl-2-methylphenol be handled safely?
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4-tert-Butyl-2-methylphenol is classified as Dangerous for the Environment. It causes severe skin burns and eye damage (H314). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and suitable respiratory protection, must be used. Handle in a well-ventilated area.
Is 4-tert-Butyl-2-methylphenol a controlled substance?
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Based on the provided data, 4-tert-Butyl-2-methylphenol is not listed as a controlled substance.
How is 4-tert-Butyl-2-methylphenol packed and shipped?
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4-tert-Butyl-2-methylphenol is shipped as UN 2430, Class 8, Packing Group III, indicating it is a corrosive material. Packaging adheres to strict international regulations for hazardous goods transport.
How can I request a sample or quote for 4-tert-Butyl-2-methylphenol?
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To request a sample or a quotation for 4-tert-Butyl-2-methylphenol, please contact the Tech Serve Solutions sales team via our website or by phone.
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