tert-Butyl-1-methyl-2-propynyl ether
tert-Butyl-1-methyl-2-propynyl ether (CAS: 26826-40-4) is an organic chemical compound with the molecular formula (CH3)3COCH(CH3)C≡CH and a molecular weight of 126.20 g/mol. This alkyne is a valuable building block in organic synthesis, featuring a terminal alkyne group and a tert-butoxy group, offering versatile reactivity for complex molecule construction. It is supplied by Tech Serve Solutions with an assay of 98%.
- IUPAC
- 3-(tert-Butoxy)-1-butyne

Organic Synthesis Intermediate
Serves as a key intermediate and building block in the synthesis of more complex organic molecules. Its terminal alkyne and ether functionalities allow for diverse chemical transformations.
Research and Development
Utilised in research laboratories for developing new synthetic routes and exploring novel chemical reactions. Its structure makes it amenable to various coupling and functionalisation reactions.
Fine Chemical Production
Employed in the manufacturing processes of fine chemicals where specific alkyne or ether moieties are required. Aids in the creation of specialized chemical products.
| Molecular weight | 126.20 |
|---|---|
| Linear formula | (CH3)3COCH(CH3)C≡CH |
| Assay | 98% |
| Boiling point | 41 °C/25 mmHg(lit.) |
| Density | 0.795 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.41(lit.) |

Hazard statements
- H225Highly flammable liquid and vapour
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 10 °C / 50 °F |
| Transport (UN / ADR) | UN 3271 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11 |
| 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 tert-Butyl-1-methyl-2-propynyl ether used for?
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tert-Butyl-1-methyl-2-propynyl ether is primarily used as a building block and intermediate in organic synthesis and in research and development for creating complex organic molecules and exploring new synthetic pathways.
What is the CAS number and molecular formula for tert-Butyl-1-methyl-2-propynyl ether?
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The CAS number is 26826-40-4, and the linear molecular formula is (CH3)3COCH(CH3)C≡CH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies tert-Butyl-1-methyl-2-propynyl ether with an assay of 98%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades unless explicitly stated.
How should tert-Butyl-1-methyl-2-propynyl ether be handled safely?
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This compound is highly flammable (H225) and requires careful handling. Use appropriate personal protective equipment including eyeshields, face shields, and suitable respirator filters (type ABEK). Keep away from heat, sparks, and open flames (P210). Ensure adequate ventilation and avoid static discharge.
Is tert-Butyl-1-methyl-2-propynyl ether a controlled substance?
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The provided data does not indicate that tert-Butyl-1-methyl-2-propynyl ether is a controlled substance.
How is tert-Butyl-1-methyl-2-propynyl ether packed and shipped?
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This chemical is classified under UN 3271, 3/PGII, indicating it is shipped as a flammable liquid. Packing and export adhere to relevant regulations for hazardous materials.
How can I request a quote or sample?
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To request a quote or sample of tert-Butyl-1-methyl-2-propynyl ether, please contact the TSS sales department via our website or direct inquiry channels.
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