2,2-Dimethyl-4-pentenal
2,2-Dimethyl-4-pentenal (CAS 5497-67-6) is an organic compound with the molecular formula C7H12O. This unsaturated aldehyde, also known as H2C=CHCH2C(CH3)2CHO, serves as a valuable building block in organic synthesis. It is particularly useful in the construction of complex carbon skeletons, such as isoprenoid structures found in natural products. Tech Serve Solutions supplies this chemical for research and industrial applications.
- Synonyms
- H2C=CHCH2C(CH3)2CHO

Synthesis of Natural Products
2,2-Dimethyl-4-pentenal has been employed as an electrophile in the synthesis of the rearranged bicyclo[6.3.0]undecane isoprenoid skeleton, as found in cyclooctenoid sesquiterpene dactylol and its 3a-epimer.
Ligand Preparation
This aldehyde can be used in the preparation of imine ligands through condensation reactions with primary amines, facilitating coordination chemistry research.
Organic Building Block
As a versatile carbonyl compound, 2,2-Dimethyl-4-pentenal acts as a key intermediate in various chemical synthesis pathways, contributing to the creation of novel molecules.
| Molecular weight | 112.17 |
|---|---|
| Linear formula | H2C=CHCH2C(CH3)2CHO |
| Assay | 90% |
| Grade | technical grade |
| Boiling point | 124-125 °C(lit.) |
| Density | 0.825 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.4203(lit.) |
| Storage temperature | 2-8°C |
| Contains / stabiliser | 1000 ppm hydroquinone as stabilizer |
| Application | 2,2-Dimethyl-4-pentenal has been used:• as electrophile in the synthesis of rearranged bicyclo[6.3.0]undecane isoprenoid skeleton of cyclooctenoid sesquiterpene dactylol and 3a-epi-dactylol1• in the preparation of imine ligand via condensation with primary amine2 |


Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Flash point | 18 °C / 64.4 °F |
|---|---|
| Transport (UN / ADR) | UN 1989BE 3 / PGII |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-22-36/37/38 |
| Safety statements (S) | 16-26 |
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 2,2-Dimethyl-4-pentenal used for?
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2,2-Dimethyl-4-pentenal is used as an electrophile in the synthesis of isoprenoid skeletons and in the preparation of imine ligands via condensation with primary amines. It serves as a valuable building block in organic synthesis.
What are the CAS number and formula for 2,2-Dimethyl-4-pentenal?
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The CAS number for 2,2-Dimethyl-4-pentenal is 5497-67-6. Its linear formula is H2C=CHCH2C(CH3)2CHO and its molecular weight is 112.17 g/mol.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,2-Dimethyl-4-pentenal as a technical grade with an assay of 90%. We do not represent this product as USP, BP, or EP grade.
How should 2,2-Dimethyl-4-pentenal be handled safely?
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2,2-Dimethyl-4-pentenal is a flammable liquid and vapour (H225) and is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). It should be handled in a well-ventilated area, away from ignition sources. Always consult the Safety Data Sheet before use.
Is 2,2-Dimethyl-4-pentenal a controlled substance?
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Based on the provided data, there is no indication that 2,2-Dimethyl-4-pentenal is a controlled substance.
How is 2,2-Dimethyl-4-pentenal shipped and exported?
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2,2-Dimethyl-4-pentenal is classified under UN 1989, hazard class 3, packing group II, indicating it is shipped as a flammable liquid. Tech Serve Solutions can export this chemical globally, adhering to all relevant transport regulations.
How can I request a quote or sample?
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To request a quote or a sample of 2,2-Dimethyl-4-pentenal, please contact our sales department through the website or by phone.
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