2,4-Dimethyl-2,3-pentadiene
2,4-Dimethyl-2,3-pentadiene (CAS: 1000-87-9) is an organic compound with the molecular formula (CH3)2C=C=C(CH3)2 and a molecular weight of 96.17 g/mol. This allene serves as a valuable building block in organic synthesis. Its primary applications involve its use in reactions such as ene additions to form more complex molecules, making it a useful intermediate in chemical research and development.
- IUPAC
- Tetramethylallene
- Synonyms
- 1000-87-9(CH3)2C=C=C(CH3)2Tetramethylallene
Synthesis of Sulfinic Acids
2,4-Dimethyl-2,3-pentadiene has been utilized in the synthesis of specific sulfinic acids, such as 3-(2,4-dimethyl-1,2-pentadienyl) and 2-(3-methyl-1,2-butadienyl) sulfinic acids, through ene addition reactions.
Organic Building Block
As a member of the allene family, this compound functions as a versatile building block in organic chemistry. Its unique structure allows for participation in various synthetic transformations and the construction of complex organic architectures.
Chemical Synthesis Intermediate
The reactivity of 2,4-Dimethyl-2,3-pentadiene makes it a useful intermediate in multi-step chemical syntheses. It can be employed in research laboratories for the development of novel compounds and methodologies.
| Molecular weight | 96.17 |
|---|---|
| Linear formula | (CH3)2C=C=C(CH3)2 |
| Assay | 97% |
| Boiling point | 87-88 °C(lit.) |
| Density | 0.701 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.440(lit.) |
| Application | 2,4-Dimethyl-2,3-pentadiene was used in the synthesis of 3-(2,4-dimethyl-1,2-pentadienyl) and 2-(3-methyl-1,2-butadienyl) sulfinic acids via ene addition reaction in liquid sulphur dioxide1. |
Hazard statements
- H225Highly flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
- 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
- P301IF SWALLOWED
- P305IF IN EYES
- P331Do NOT induce vomiting
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -12 °C / 10.4 °F |
| Transport (UN / ADR) | UN 3295BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-36/37/38-65 |
| Safety statements (S) | 7/9-16-26-33-36-62 |
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 2,4-Dimethyl-2,3-pentadiene used for?
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2,4-Dimethyl-2,3-pentadiene is used as a building block in organic synthesis, notably in ene addition reactions for preparing sulfinic acids and as an intermediate in chemical synthesis.
What is the CAS number and formula for 2,4-Dimethyl-2,3-pentadiene?
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The CAS number is 1000-87-9, and its linear formula is (CH3)2C=C=C(CH3)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,4-Dimethyl-2,3-pentadiene with an assay of 97%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should 2,4-Dimethyl-2,3-pentadiene be handled?
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2,4-Dimethyl-2,3-pentadiene is a highly flammable liquid and vapour (H225). It can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). It may also be fatal if swallowed and enters airways (H304). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area, away from ignition sources.
Is 2,4-Dimethyl-2,3-pentadiene flammable?
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Yes, 2,4-Dimethyl-2,3-pentadiene is highly flammable, with a flash point of -12 °C (10.4 °F) (H225).
How is this chemical shipped and exported?
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2,4-Dimethyl-2,3-pentadiene is shipped and exported under UN 3295 BF 3 / PG II regulations, indicating it is a flammable liquid, and appropriate handling and documentation are required.
How can I request a quote or sample?
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To request a quote or a sample of 2,4-Dimethyl-2,3-pentadiene, please contact our sales department via the website or by phone.
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