4-(Trifluoromethyl)benzyl chloride
4-(Trifluoromethyl)benzyl chloride (CAS 939-99-1) is a halogenated aromatic compound with the molecular formula CF3C6H4CH2Cl and a molecular weight of 194.58 g/mol. This chemical serves as a valuable building block in organic synthesis, particularly in the pharmaceutical and agrochemical industries. It is employed in the introduction of the 4-(trifluoromethyl)benzyl group into various molecular structures, facilitating the development of novel compounds.
- IUPAC
- α′-Chloro-α,α,α-trifluoro-p-xylene

Pharmaceutical Intermediate
Utilised in the synthesis of active pharmaceutical ingredients (APIs). Its trifluoromethylbenzyl moiety can impart desirable pharmacokinetic properties to drug candidates.
Agrochemical Synthesis
A key intermediate in the development of new pesticides and herbicides. The trifluoromethyl group often enhances the biological activity and stability of agrochemicals.
Organic Building Block
Serves as a versatile reagent for introducing the 4-(trifluoromethyl)benzyl group in complex organic molecules. Useful in academic and industrial research laboratories for novel compound discovery.
Material Science Research
Explored for incorporation into specialised polymers or functional materials where the electron-withdrawing trifluoromethyl group can influence material properties.
| Molecular weight | 194.58 |
|---|---|
| Linear formula | CF3C6H4CH2Cl |
| Assay | 98% |
| Boiling point | 68 °C/12 mmHg(lit.) |
| Density | 1.315 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.464(lit.) |


Hazard statements
- H314Causes severe skin burns and eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- 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 | 74 °C / 165.2 °F |
| Transport (UN / ADR) | UN 3265 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34-36/37 |
| Safety statements (S) | 23-26-27-36/37/39-45 |
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-(Trifluoromethyl)benzyl chloride primarily used for?
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4-(Trifluoromethyl)benzyl chloride is primarily used as a building block in organic synthesis, particularly for pharmaceuticals and agrochemicals, enabling the introduction of the 4-(trifluoromethyl)benzyl group.
What is the CAS number and chemical formula for 4-(Trifluoromethyl)benzyl chloride?
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The CAS number is 939-99-1 and the chemical formula is CF3C6H4CH2Cl.
What grade and purity does Tech Serve Solutions supply for 4-(Trifluoromethyl)benzyl chloride?
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Tech Serve Solutions supplies 4-(Trifluoromethyl)benzyl chloride with an assay of 98%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
What are the main safety hazards associated with 4-(Trifluoromethyl)benzyl chloride?
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This compound is classified as Danger, with hazards including H314 (Causes severe skin burns and eye damage) and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including face shields, respirators, gloves, and goggles, is essential.
How is 4-(Trifluoromethyl)benzyl chloride packed and shipped by TSS?
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As a global supplier and exporter, Tech Serve Solutions ensures that 4-(Trifluoromethyl)benzyl chloride is packed and shipped in compliance with all relevant international regulations for hazardous materials (UN 3265, Class 8, PG II).
How can I request a sample or quote for 4-(Trifluoromethyl)benzyl chloride?
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You can request a sample or obtain a quote for 4-(Trifluoromethyl)benzyl chloride by contacting our sales team through the provided channels on the Tech Serve Solutions website.
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