2,4,6-Trichlorobenzoyl chloride
2,4,6-Trichlorobenzoyl chloride (CAS 4136-95-2) is an organic compound with the molecular formula Cl3C6H2COCl and a molecular weight of 243.90 g/mol. As an acid halide and organic building block, it is particularly useful in chemical synthesis for the preparation of large-ring lactones with high yields. This compound is supplied by TSS with an assay of 97%.
- Synonyms
- 4136-95-2Cl3C6H2COCl

Synthesis of Lactones
2,4,6-Trichlorobenzoyl chloride is a key reagent for the efficient synthesis of large-ring lactones. Its application in organic synthesis allows for the preparation of complex cyclic ester structures.
Organic Building Block
This compound serves as a valuable building block in organic chemistry. It facilitates the introduction of the 2,4,6-trichlorobenzoyl moiety into various molecular structures.
Carbonyl Compound Reactant
As a carbonyl compound, it participates in various reactions characteristic of acid chlorides, enabling further chemical transformations and functional group interconversions.
| Molecular weight | 243.90 |
|---|---|
| Linear formula | Cl3C6H2COCl |
| Assay | 97% |
| Boiling point | 107-108 °C/6 mmHg(lit.) |
| Density | 1.561 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5754(lit.) |
| Application | Useful for the preparation of large-ring lactones in high yields.1 |

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 | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Transport (UN / ADR) | UN 3265 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-27-28-36/37/39-45 |
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 2,4,6-Trichlorobenzoyl chloride primarily used for?
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2,4,6-Trichlorobenzoyl chloride is primarily used in organic synthesis for the preparation of large-ring lactones in high yields.
What is the CAS number and formula for 2,4,6-Trichlorobenzoyl chloride?
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The CAS number is 4136-95-2 and the linear formula is Cl3C6H2COCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,4,6-Trichlorobenzoyl chloride with an assay of 97%. TSS does not represent this product as USP, BP, or EP grade.
How should 2,4,6-Trichlorobenzoyl chloride be handled safely?
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2,4,6-Trichlorobenzoyl chloride is a danger substance that causes severe skin burns and eye damage (H314). Handle with full protective equipment, including gloves, goggles, face shields, and appropriate respiratory protection. Ensure adequate ventilation and have emergency procedures in place.
How is 2,4,6-Trichlorobenzoyl chloride packaged and shipped?
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2,4,6-Trichlorobenzoyl chloride is packaged and shipped in compliance with relevant regulations for hazardous materials, including UN 3265, Hazard Class 8, Packing Group II. We are a global supplier and exporter.
How can I request a quote or sample?
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To request a quote or sample of 2,4,6-Trichlorobenzoyl chloride, please contact our sales team through the website or by phone, providing your specific requirements.
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