3′-Chloroacetophenone
3'-Chloroacetophenone (CAS: 99-02-5) is a chemical compound with the molecular formula ClC 6 4 COCH 3 and a molecular weight of 154.59 g/mol. This chlorinated ketone serves as a valuable intermediate and building block in organic synthesis. Its applications are primarily in the chemical industry for the development of new compounds and materials, leveraging its reactive carbonyl group and aromatic halogen substituent.
- Synonyms
- 1-(3-chlorophenyl)ethanonem-Chloroacetophenone3-Acetylchlorobenzene

Organic Synthesis Intermediate
3'-Chloroacetophenone is widely used as a starting material or intermediate in the synthesis of more complex organic molecules. Its structure allows for various chemical transformations, making it useful in multi-step synthetic pathways.
Pharmaceutical Precursor
This compound can serve as a precursor in the development of active pharmaceutical ingredients (APIs). Its functional groups are amenable to modifications required for building drug candidates.
Research and Development
In academic and industrial research, 3'-Chloroacetophenone is employed for exploring novel chemical reactions and developing new synthetic methodologies. Its availability as a laboratory reagent facilitates R&D activities.
| Molecular weight | 154.59 |
|---|---|
| Linear formula | ClC6H4COCH3 |
| Assay | ≥97.0% (GC) |
| Boiling point | 227-229 °C(lit.) |
| Density | 1.191 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.550(lit.)n20/D 1.550 |

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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 105 °C / 221 °F |
| Transport (UN / ADR) | UN 3416 6.1 / PGII |
| 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 3'-Chloroacetophenone primarily used for?
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3'-Chloroacetophenone is primarily used as an intermediate and building block in organic synthesis, including in the development of pharmaceuticals and for general research purposes.
What are the CAS number and molecular formula for 3'-Chloroacetophenone?
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The CAS number for 3'-Chloroacetophenone is 99-02-5, and its linear formula is ClC 6 4 COCH 3 .
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3'-Chloroacetophenone with an assay of ≥97.0% (GC). We do not represent this product as USP, BP, or EP grade.
How should 3'-Chloroacetophenone be handled safely?
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3'-Chloroacetophenone is a warning substance classified with H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, and ensure adequate ventilation.
Is 3'-Chloroacetophenone subject to any special controls or regulations?
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The provided data does not indicate that 3'-Chloroacetophenone is a controlled substance. However, always consult relevant local and international regulations.
How is 3'-Chloroacetophenone packed, shipped, and exported?
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Tech Serve Solutions packs and ships 3'-Chloroacetophenone according to international safety and transport regulations for hazardous chemicals. We offer global export services.
How can I request a sample or quote for 3'-Chloroacetophenone?
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To request a sample or a quotation for 3'-Chloroacetophenone, please contact our sales team through the website or by phone. We will respond promptly to your inquiry.
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