Crotonaldehyde, predominantly trans
Crotonaldehyde, predominantly trans (CAS: 123-73-9), is a volatile organic compound with the linear formula CH₃CH=CHCHO and a molecular weight of 70.09 g/mol. This unsaturated aldehyde is recognised for its pungent odour and is a key intermediate in organic synthesis. Its applications span various chemical processes, serving as a versatile building block for more complex molecules. Supplied by Tech Serve Solutions, it is primarily used in chemical research and industrial synthesis.
- Synonyms
- 2-Butenaltrans-2-Butenal(E)-2-Butenal
Organic Synthesis Intermediate
Crotonaldehyde serves as a crucial C4 building block in various organic synthetic pathways. It is utilised in the production of pharmaceuticals, fragrances, and agrochemicals due to its reactive aldehyde and alkene functional groups.
Precursor for Heterocyclic Compounds
The compound can be employed in reactions leading to the formation of heterocyclic structures, which are important motifs in medicinal chemistry and material science. Its structure facilitates cyclisation reactions with various nucleophiles.
Polymerisation Initiator/Monomer
Under specific conditions, crotonaldehyde can participate in polymerisation reactions. It may act as a monomer or comonomer, contributing to the development of specialised polymers with unique properties.
| Molecular weight | 70.09 |
|---|---|
| Linear formula | CH3CH=CHCHO |
| Assay | ≥99% |
| Boiling point | 104 °C(lit.) |
| Density | 0.846 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.4362(lit.) |
| Solubility | water: soluble425.4 g/L at 20 °C |
| Melting point | −76 °C(lit.) |
| Vapour pressure | 32 mmHg (20 °C) |
| Vapour density | 2.41 (vs air) |
| Autoignition temp | 320 °F |
| Storage temperature | 2-8°C |
| Contains / stabiliser | 0.1-0.2% BHT as stabilizer1% H2O as stabilizer |
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
| Flash point | 9 °C / 48 °F |
|---|---|
| Transport (UN / ADR) | UN 1143 6.1/PG 1 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,T+,N |
| Risk statements (R) | 11-24/25-26-37/38-41-48/22-50-68 |
| Safety statements (S) | 26-28.1-36/37/39-45-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 19.5 % |
|---|
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 Crotonaldehyde, predominantly trans used for?
+
Crotonaldehyde, predominantly trans (CAS: 123-73-9) is primarily used as a key intermediate in organic synthesis, a building block for pharmaceuticals, fragrances, and agrochemicals, and as a precursor for heterocyclic compounds.
What is the CAS number and formula for Crotonaldehyde, predominantly trans?
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The CAS number for Crotonaldehyde, predominantly trans is 123-73-9, and its linear formula is CH₃CH=CHCHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Crotonaldehyde, predominantly trans with an assay of ≥99%. This is a technical/research grade, and TSS does not represent it as USP, BP, EP, or pharmacopoeia grade.
How is Crotonaldehyde, predominantly trans safely handled?
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Crotonaldehyde, predominantly trans is flammable and toxic. Handle with extreme care in a well-ventilated area (fume hood), wearing appropriate personal protective equipment including gloves, safety goggles, and protective clothing. Avoid contact with skin, eyes, and clothing, and prevent inhalation of vapours. Refer to the Safety Data Sheet (SDS) for comprehensive handling instructions.
How is Crotonaldehyde, predominantly trans packed, shipped, and exported?
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Crotonaldehyde, predominantly trans is carefully packed according to international regulations for hazardous materials. Shipping and export are managed by our experienced logistics team to ensure compliance and timely delivery worldwide.
How can I request a sample or quote for Crotonaldehyde, predominantly trans?
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To request a sample or a quote for Crotonaldehyde, predominantly trans, please contact our sales department via the website or direct email, providing your specific requirements.
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