2-(Chloromethyl)benzoyl chloride
2-(Chloromethyl)benzoyl chloride (CAS: 42908-86-1; Formula: C8H6Cl2O) is a reactive organic compound with a molecular weight of 189.04 g/mol. As an acid halide and organic building block, it serves as a key intermediate in chemical synthesis. This compound is primarily utilized in the development of complex organic molecules within research and industrial settings, offering versatile reactivity for various chemical transformations.
- IUPAC
- α-Chloro-o-toluoyl chloride
- Synonyms
- α-Chloro-o-toluoyl chloride

Pharmaceutical Intermediate Synthesis
2-(Chloromethyl)benzoyl chloride is employed as a crucial building block in the multi-step synthesis of active pharmaceutical ingredients (APIs). Its reactive nature allows for the introduction of specific functional groups necessary for drug development.
Agrochemical Development
This compound can be utilised in the synthesis of novel agrochemicals. Its structure permits modifications leading to potential herbicides, insecticides, or fungicides.
Material Science Research
In material science, 2-(Chloromethyl)benzoyl chloride may be used in the creation of specialised polymers or functional materials. Its reactivity facilitates polymerisation or the attachment of specific moieties to material surfaces.
Organic Synthesis Reagent
As a versatile organic building block, it is frequently used in academic and industrial research laboratories for the construction of complex organic molecules and the exploration of new synthetic methodologies.
| Molecular weight | 189.04 |
|---|---|
| Empirical formula | C8H6Cl2O |
| Assay | ≥96.0% (GC)96.0-104.0% (T) |



Hazard statements
- H302Harmful if swallowed
- H314Causes severe skin burns and eye damage
- H331Toxic if inhaled
- H351Suspected of causing cancer
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
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | T |
| Risk statements (R) | 22-23-34-40 |
| 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 2-(Chloromethyl)benzoyl chloride used for?
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2-(Chloromethyl)benzoyl chloride (CAS: 42908-86-1) is primarily used as an intermediate in organic synthesis, particularly in the development of pharmaceuticals, agrochemicals, and advanced materials. It functions as a reactive building block for creating more complex organic structures.
What is the CAS number and formula for 2-(Chloromethyl)benzoyl chloride?
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The CAS number is 42908-86-1 and the empirical formula (Hill notation) is C8H6Cl2O.
What grade and purity does Tech Serve Solutions supply for 2-(Chloromethyl)benzoyl chloride?
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Tech Serve Solutions supplies 2-(Chloromethyl)benzoyl chloride with a minimum assay of 96.0% by GC, or 96.0-104.0% by titration. This is a technical/research grade chemical and TSS does not represent it as USP, BP, or EP grade.
How should 2-(Chloromethyl)benzoyl chloride be handled safely?
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2-(Chloromethyl)benzoyl chloride is a dangerous substance. It causes severe skin burns and eye damage (H314), is harmful if swallowed (H302), and is toxic if inhaled (H331). It is also suspected of causing cancer (H351). Always handle in a well-ventilated area, wearing appropriate protective equipment including gloves, eye protection, and respiratory protection. Refer to the Safety Data Sheet (SDS) for comprehensive handling procedures.
Is 2-(Chloromethyl)benzoyl chloride a controlled substance?
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The provided data does not indicate that 2-(Chloromethyl)benzoyl chloride (CAS: 42908-86-1) is a controlled substance.
How is 2-(Chloromethyl)benzoyl chloride packed and shipped?
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Tech Serve Solutions packs and ships chemicals in compliance with international regulations for hazardous materials. Specific packaging details and shipping information can be provided upon request for export orders.
How can I request a sample or quote for 2-(Chloromethyl)benzoyl chloride?
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To request a sample or a quote for 2-(Chloromethyl)benzoyl chloride, please use the contact form on our website or reach out to our sales department directly. Please include your contact information and the desired quantity.
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