1,1-Diethoxy-3-methyl-2-butene
1,1-Diethoxy-3-methyl-2-butene (CAS 1740-74-5) is an acyclic alkene building block with the molecular formula (C2H5O)2CHCH=C(CH3)2 and a molecular weight of 158.24 g/mol. This organic compound is utilised in chemical synthesis for the creation of more complex molecules. Its properties include a boiling point of 53-58 °C/20 mmHg and a density of 0.837 g/mL at 25 °C. Tech Serve Solutions supplies this chemical with an assay of 97%.
- Synonyms
- (C2H5O)2CHCH=C(CH3)2

Organic Synthesis Intermediate
1,1-Diethoxy-3-methyl-2-butene serves as a versatile intermediate in organic synthesis. It can be employed in reactions for constructing carbon frameworks and introducing specific functional groups into target molecules.
Building Block for Complex Molecules
As an organic building block, this compound is valuable for research and development in synthetic chemistry. Its structure lends itself to incorporation into a variety of complex organic structures.
Reagent in Chemical Research
This chemical acts as a reagent in laboratory settings, facilitating various chemical transformations. Its utility is found in academic and industrial research focused on novel compound discovery and process development.
| Molecular weight | 158.24 |
|---|---|
| Linear formula | (C2H5O)2CHCH=C(CH3)2 |
| Assay | 97% |
| Boiling point | 53-58 °C/20 mmHg(lit.) |
| Density | 0.837 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.421(lit.) |

Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 60 °C / 140 °F |
| Transport (UN / ADR) | UN 3271 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
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 1,1-Diethoxy-3-methyl-2-butene used for?
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1,1-Diethoxy-3-methyl-2-butene is primarily used as an intermediate and building block in organic synthesis and chemical research for constructing complex molecules.
What is the CAS number and molecular formula for 1,1-Diethoxy-3-methyl-2-butene?
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The CAS number is 1740-74-5 and the linear molecular formula is (C2H5O)2CHCH=C(CH3)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,1-Diethoxy-3-methyl-2-butene with an assay of 97%. This is a technical/research grade, and TSS does not represent it as USP, BP, or EP grade.
How should 1,1-Diethoxy-3-methyl-2-butene be handled safely?
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1,1-Diethoxy-3-methyl-2-butene is a flammable liquid (H226) requiring careful handling. Use appropriate personal protective equipment, including eyeshields and gloves, and ensure adequate ventilation. It is classified under GHS02 with a Warning signal word.
Is 1,1-Diethoxy-3-methyl-2-butene available for export?
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Yes, Tech Serve Solutions, as a specialist global supplier and exporter, can ship and export 1,1-Diethoxy-3-methyl-2-butene worldwide.
How can I request a sample or quote for 1,1-Diethoxy-3-methyl-2-butene?
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Please contact our sales team directly through the website or by phone to request a sample or obtain a quote for 1,1-Diethoxy-3-methyl-2-butene.
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