2-Phenylbutyryl chloride
2-Phenylbutyryl chloride (CAS 36854-57-6), with the linear formula C2H5CH(C6H5)COCl and a molecular weight of 182.65, is a reactive acid halide. It serves as a valuable intermediate in organic synthesis, particularly in the construction of complex molecules within pharmaceutical research and fine chemical manufacturing. Its chemical nature allows for versatile derivatisation, making it a key building block.

Organic Synthesis Intermediate
2-Phenylbutyryl chloride is employed as a key reagent in various organic transformations. It facilitates the introduction of the 2-phenylbutyryl moiety into diverse molecular frameworks, enabling the synthesis of more complex organic compounds.
Pharmaceutical Research
This acid chloride acts as a crucial building block in the research and development of novel pharmaceutical agents. Its structure can be incorporated into potential drug candidates, contributing to the exploration of new therapeutic avenues.
Fine Chemical Manufacturing
In the fine chemical industry, 2-Phenylbutyryl chloride is utilised for its reactivity in producing specialised chemicals. It aids in the efficient synthesis of target molecules requiring its specific structural features.
| Molecular weight | 182.65 |
|---|---|
| Linear formula | C2H5CH(C6H5)COCl |
| Assay | 98% |
| Boiling point | 122-125 °C/20 mmHg(lit.) |
| Density | 1.093 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.516(lit.) |

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 | 98 °C / 208.4 °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) | 22-26-27-36/37/39-45 |
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 2-Phenylbutyryl chloride used for?
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2-Phenylbutyryl chloride is used as an intermediate in organic synthesis, particularly in pharmaceutical research and fine chemical manufacturing, for introducing the 2-phenylbutyryl group into molecules.
What are the CAS number and formula for 2-Phenylbutyryl chloride?
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The CAS number is 36854-57-6 and the linear formula is C2H5CH(C6H5)COCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Phenylbutyryl chloride with an assay of 98%. This product is intended for research and industrial use, and TSS does not represent it as meeting USP, BP, or EP pharmacopoeial standards.
How should 2-Phenylbutyryl chloride be handled safely?
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2-Phenylbutyryl chloride is classified as Danger (GHS05) and causes severe skin burns and eye damage (H314). Handling requires full protective equipment including face shields, gloves, goggles, and appropriate respiratory protection. Always consult the Safety Data Sheet before use.
How is 2-Phenylbutyryl chloride packed and shipped?
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2-Phenylbutyryl chloride is packed according to UN 3265, Class 8, Packing Group II regulations for safe transport. We are experienced exporters of chemicals worldwide.
How can I request a quote or sample?
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To request a quote or a sample of 2-Phenylbutyryl chloride, please contact our sales team through the website or by phone.
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