3-Butenyl chloroformate
3-Butenyl chloroformate (CAS 88986-45-2), with the linear formula ClCO₂CH₂CH₂CH=CH₂, is a reactive organic compound with a molecular weight of 134.56 g/mol. As a member of the acid halide and carbonyl compound families, it serves as a valuable building block in organic synthesis. Its chemical structure allows for versatile reactions, making it suitable for the development of various complex organic molecules and pharmaceutical intermediates.

Organic Synthesis Intermediate
This compound functions as a key intermediate in the synthesis of diverse organic molecules. Its reactive chloroformate group enables facile functionalization and chain extension in multi-step synthetic pathways.
Building Block for Complex Molecules
3-Butenyl chloroformate is utilised as a fundamental building block in the construction of more intricate chemical structures. It is particularly useful in introducing specific functional groups or carbon chains into target molecules.
Pharmaceutical Intermediate Development
The compound finds application in the research and development of new pharmaceutical agents. Its reactivity profile supports the creation of novel molecular scaffolds relevant to drug discovery processes.
| Molecular weight | 134.56 |
|---|---|
| Linear formula | ClCO2CH2CH2CH=CH2 |
| Assay | 98% |
| Boiling point | 85-86 °C/8.8 mmHg(lit.) |
| Density | 1.087 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.428(lit.) |



Hazard statements
- H226Flammable liquid and vapour
- H301Toxic if swallowed
- H311Toxic in contact with skin
- H314Causes severe skin burns and eye damage
- H331Toxic if inhaled
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 | 35 °C / 95 °F |
| Transport (UN / ADR) | UN 3390 6.1/PG 1 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 10-23/24/25-34 |
| Safety statements (S) | 16-26-36/37/39-45 |
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 3-Butenyl chloroformate typically used for?
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3-Butenyl chloroformate is primarily used as an intermediate and building block in organic synthesis, particularly in the development of pharmaceutical intermediates and complex organic molecules.
What is the CAS number and formula for 3-Butenyl chloroformate?
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The CAS number is 88986-45-2 and the linear formula is ClCO₂CH₂CH₂CH=CH₂.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Butenyl chloroformate with a minimum assay of 98%. We do not represent this product as USP, BP, or EP grade.
What are the primary safety hazards associated with 3-Butenyl chloroformate?
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3-Butenyl chloroformate is classified as Danger. It is flammable (H226), toxic if swallowed (H301), toxic in contact with skin (H311), causes severe skin burns and eye damage (H314), and toxic if inhaled (H331). Appropriate personal protective equipment, including gloves, goggles, face shields, and suitable respiratory protection, is essential for safe handling.
How is 3-Butenyl chloroformate packed, shipped, and exported?
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Tech Serve Solutions professionally packs and ships chemicals globally, adhering to all relevant transportation regulations for hazardous materials. We are experienced exporters of fine chemicals, pharmaceutical intermediates, and laboratory reagents.
How can I request a sample or a quote for 3-Butenyl chloroformate?
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Please contact our sales team via the website or direct email to request a sample or obtain a quotation for 3-Butenyl chloroformate.
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