Molekula
Triisopropylsilylacetylene
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Triisopropylsilylacetylene is a silylated alkyne used as a versatile intermediate in organic synthesis, particularly in the preparation of complex molecules, silicon-containing polymers, and cross-coupling reactions. It serves as a protected acetylene reagent to enhance reactivity and selectivity in coupling chemistry. CAS 89343-06-6, molecular formula [(CH3)2CH]3SiC≡CH, molecular weight 182.38 g/mol. Store at ambient conditions. Signal word: Warning. Molekula supplies Triisopropylsilylacetylene from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless liquid |
| Boiling Point | 50 - 52℃ |
| Water | ≤0.2% |
| Assay HPLC | ≥98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 56 °C |
| Transport Class | 3 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90022764 |
| CAS Number | 89343-06-6 |
| IUPAC Name | ethynyl-tri(propan-2-yl)silane |
| Molecular Formula | [(CH3)2CH]3SiC≡CH |
| Molecular Weight | 182.38 |
| Exact Mass | 182.1491 |
| SMILES | CC(C)[Si](C#C)(C(C)C)C(C)C |
| InChIKey | KZGWPHUWNWRTEP-UHFFFAOYSA-N |
| InChI | InChI=1S/C11H22Si/c1-8-12(9(2)3,10(4)5)11(6)7/h1,9-11H,2-7H3 |
| PubChem CID | 2734682 |
| UN Number | UN1993 |
| REACH Code | Y110 |
| HTS Code | 29319090 |
| Tariff Code | 2931900090 |
Safety & GHS
-
Flammable
GHS02
-
Health Hazard
GHS07
Hazard statements
- H226 Flammable liquid and vapour
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- C11H22Si
- ethynyl-tri(propan-2-yl)silane
- Ethynyltriisopropylsilane
- Ethynyltris(1-methylethyl)silane
- ethynyltris(propan-2-yl)silane
- KZGWPHUWNWRTEP-UHFFFAOYSA-N
- Silane, ethynyltris(1-methylethyl)-
- TIPS-acetylene
- Triisopropylacetylene
- triisopropylsilylacetylen
Frequently asked questions
What is triisopropylsilylacetylene commonly used for?
Triisopropylsilylacetylene is primarily used as a silyl-protected acetylene reagent in organic synthesis, particularly for cross-coupling reactions like Sonogashira couplings.
What is the chemical formula and molecular weight of triisopropylsilylacetylene?
The chemical formula is [(CH₃)₂CH]₃SiC≡CH, and the molecular weight is 182.38 g/mol.
How should triisopropylsilylacetylene be stored?
Store at ambient temperature in a cool, dry place, away from incompatible substances like oxidizing agents.
What grade or purity is available for triisopropylsilylacetylene?
Molekula supplies triisopropylsilylacetylene in high-purity grade (≥97% purity).
Can Molekula supply triisopropylsilylacetylene in bulk quantities?
Yes, bulk quantities are available upon request—contact Molekula for specific pricing and lead times.
What documentation comes with an order of triisopropylsilylacetylene?
Each order includes a Certificate of Analysis (CoA), Safety Data Sheet (SDS), and a Material Safety Information (MSI) document.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.