trans-1-Phenyl-2-buten-1-one
Trans-1-Phenyl-2-buten-1-one (CAS 35845-66-0), a phenyl vinyl ketone derivative with formula C10H10O and a molecular weight of 146.19 g/mol, is an organic compound utilised as a versatile building block in chemical synthesis. It belongs to the class of carbonyl compounds and alkenes, offering reactive sites for various organic transformations. This compound is supplied by Tech Serve Solutions for research and industrial applications.
- IUPAC
- trans-Crotonophenone
- Synonyms
- trans-Crotonophenone

Organic Synthesis Intermediate
Trans-1-Phenyl-2-buten-1-one serves as a key intermediate in the synthesis of more complex organic molecules. Its conjugated system and carbonyl group make it amenable to Michael additions and other nucleophilic reactions.
Building Block for Pharmaceuticals
This compound can be employed in the multi-step synthesis of pharmaceutical agents. Its structural features allow for its incorporation into various drug scaffolds and heterocyclic systems.
Research Chemical
Utilised in academic and industrial research laboratories for exploring novel chemical reactions and developing new synthetic methodologies. It is valuable for studying reaction mechanisms involving alpha,beta-unsaturated ketones.
| Molecular weight | 146.19 |
|---|---|
| Empirical formula | C10H10O |
| Assay | ≥80% (GC)80% |
| Grade | technical |
| Storage temperature | 2-8°C |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | Eyeshields, Faceshields, 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) | Xn |
| Risk statements (R) | 22 |
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 Trans-1-Phenyl-2-buten-1-one used for?
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Trans-1-Phenyl-2-buten-1-one is used as an intermediate in organic synthesis, a building block for pharmaceuticals, and as a research chemical for exploring new synthetic methodologies.
What is the CAS number and molecular formula for Trans-1-Phenyl-2-buten-1-one?
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The CAS number is 35845-66-0 and the molecular formula is C10H10O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Trans-1-Phenyl-2-buten-1-one at a technical grade with an assay of ≥80% (GC). This product is not represented as USP, BP, or EP grade.
How should Trans-1-Phenyl-2-buten-1-one be handled safely?
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Trans-1-Phenyl-2-buten-1-one is classified as harmful if swallowed (H302). Handle with appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection. Store at 2-8°C.
Is Trans-1-Phenyl-2-buten-1-one a controlled substance?
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The provided data does not indicate that Trans-1-Phenyl-2-buten-1-one is a controlled substance.
How is Trans-1-Phenyl-2-buten-1-one packed and shipped?
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Trans-1-Phenyl-2-buten-1-one is typically packed in appropriate containers for chemical transport and is exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations.
How can I request a quote or sample for Trans-1-Phenyl-2-buten-1-one?
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To request a quote or sample, please contact the Tech Serve Solutions sales team via our website or direct contact details, specifying the product name and CAS number.
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