Allyl p-toluenesulfonate
Allyl p-toluenesulfonate (CAS: 4873-09-0; Formula: C10H12O3S; MW: 212.27 g/mol) is a tosylate ester. This organic compound serves as a valuable building block in chemical synthesis, particularly for introducing the allyloxy group or for reactions involving the sulfonate ester functionality. It is primarily utilised in research and development settings for the creation of novel organic molecules and intermediates.

Organic Synthesis Intermediate
Allyl p-toluenesulfonate acts as an alkylating agent, facilitating the introduction of the allyl group into various organic structures. Its tosylate leaving group makes it reactive in nucleophilic substitution reactions.
Building Block for Complex Molecules
This compound is employed in the construction of more complex organic molecules. The allyl moiety can undergo further transformations, such as cross-coupling reactions or polymerisation.
Research and Development
Utilised in academic and industrial laboratories for exploring new synthetic pathways and developing novel chemical entities. Its specific reactivity profile makes it a useful tool for synthetic chemists.
| Molecular weight | 212.27 |
|---|---|
| Empirical formula | C10H12O3S |
| Assay | ≥95.0% (GC) |
| Density | 1.180 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.523 |

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 |
|---|---|
| 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 Allyl p-toluenesulfonate used for?
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Allyl p-toluenesulfonate is primarily used as a building block and intermediate in organic synthesis, facilitating alkylation reactions and the introduction of the allyl moiety in the development of new chemical compounds.
What are the CAS number and formula for Allyl p-toluenesulfonate?
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The CAS number for Allyl p-toluenesulfonate is 4873-09-0, and its molecular formula is C10H12O3S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Allyl p-toluenesulfonate with an assay of ≥95.0% (GC). We do not represent this product as meeting USP, BP, EP, or other pharmacopoeial standards.
How should Allyl p-toluenesulfonate be handled?
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Allyl p-toluenesulfonate is a skin, eye, and respiratory irritant (H315, H319, H335). Handle with appropriate personal protective equipment, including safety glasses, gloves, and respiratory protection in a well-ventilated area.
Is Allyl p-toluenesulfonate a controlled substance?
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Based on the provided data, there is no indication that Allyl p-toluenesulfonate is a controlled substance.
How is Allyl p-toluenesulfonate packaged and shipped?
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Tech Serve Solutions securely packages and exports chemicals globally, adhering to all relevant shipping regulations for hazardous materials.
How can I request a quote or sample of Allyl p-toluenesulfonate?
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To request a quote or sample, please contact our sales department through the website or by phone, providing your specific requirements.
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