1,3,3-Trimethoxybutane
1,3,3-Trimethoxybutane (CAS 6607-66-5) is an organic compound with the linear formula CH3C(OCH3)2CH2CH2OCH3 and a molecular weight of 148.20 g/mol. This acetal serves as a valuable building block in organic synthesis. It is primarily used in chemical synthesis studies and as an intermediate in the development of more complex molecules. Tech Serve Solutions supplies this chemical with a purity of 97%.
- IUPAC
- 4-Methoxy-2-butanone dimethyl acetal
- Synonyms
- 6607-66-5, CH3C(OCH3)2CH2CH2OCH3, 4-Methoxy-2-butanone dimethyl acetal

Organic Synthesis
1,3,3-Trimethoxybutane is utilised as a versatile building block in organic synthesis. Its acetal functional group allows for various chemical transformations.
Chemical Research
This compound finds application in chemical synthesis studies, aiding researchers in exploring new synthetic pathways and developing novel compounds.
Intermediate Production
As a functionalised organic molecule, 1,3,3-Trimethoxybutane can be employed as an intermediate in the multi-step synthesis of complex chemical entities.
| Molecular weight | 148.20 |
|---|---|
| Linear formula | CH3C(OCH3)2CH2CH2OCH3 |
| Assay | 97% |
| Boiling point | 61-63 °C/20 mmHg(lit.) |
| Density | 0.94 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.41(lit.) |
| Application | 1,3,3-Trimethoxybutane may be used in chemical synthesis studies. |

Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 46 °C / 114.8 °F |
| Transport (UN / ADR) | UN 3271 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
| Safety statements (S) | 16 |
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 1,3,3-Trimethoxybutane used for?
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1,3,3-Trimethoxybutane is primarily used in chemical synthesis studies and as a building block in organic synthesis.
What is the CAS number and formula for 1,3,3-Trimethoxybutane?
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The CAS number is 6607-66-5 and the linear formula is CH3C(OCH3)2CH2CH2OCH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3,3-Trimethoxybutane with an assay of 97%. This is a technical/research grade material and is not represented as USP, BP, or EP grade.
How should 1,3,3-Trimethoxybutane be handled safely?
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1,3,3-Trimethoxybutane is a flammable liquid and vapour (H226). Handle with appropriate personal protective equipment, including eyeshields, gloves, and ensure adequate ventilation. Refer to the Safety Data Sheet for detailed handling instructions.
Is 1,3,3-Trimethoxybutane a controlled substance?
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Based on the provided data, 1,3,3-Trimethoxybutane is not indicated as a controlled substance. However, customers should always verify local regulations.
How is 1,3,3-Trimethoxybutane packed, shipped, and exported?
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1,3,3-Trimethoxybutane is packed according to relevant safety and transport regulations for flammable liquids. Tech Serve Solutions is an experienced global exporter and can provide details upon request.
How can I request a sample or quote for 1,3,3-Trimethoxybutane?
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To request a sample or quote, please use the contact form on our website or contact our sales team directly with your requirements.
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