Molekula
Tris(trimethylsilyl)silane
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Tris(trimethylsilyl)silane is a highly reactive silane compound widely used as a reducing agent in organic synthesis, particularly for selective reductions of functional groups like halides, azides, and carbonyls. It is also employed in polymer chemistry and materials science for modifying silicon-based surfaces. This clear, colorless liquid has a CAS number of 1873-77-4, a molecular formula of C9H28Si4, and a molecular weight of 248.66 g/mol. It requires no special storage precautions and carries no signal word for hazard classification. Molekula supplies Tris(trimethylsilyl)silane 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 transparent liquid |
| Identification | Conforms to reference |
| Purity (GC) | 95.0% min |
| Residue after dissolution | 0.5% max |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 55 °C |
| Transport Class | 3 |
| Packing Group | III |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90037889 |
| CAS Number | 1873-77-4 |
| IUPAC Name | bis(trimethylsilyl)silyl-trimethylsilane |
| Molecular Formula | C9H28Si4 |
| Molecular Weight | 248.66 |
| Exact Mass | 248.1268 |
| SMILES | C[Si](C)(C)[SiH]([Si](C)(C)C)[Si](C)(C)C |
| InChIKey | SQMFULTZZQBFBM-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H28Si4/c1-11(2,3)10(12(4,5)6)13(7,8)9/h10H,1-9H3 |
| PubChem CID | 123134 |
| UN Number | UN1993 |
| REACH Code | Y110 |
| HTS Code | 2931906000 |
| 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
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
- 1,1,1,3,3,3-Hexamethyl-2-(trimethylsilyl)trisilane
- bis(trimethylsilyl)silyl-trimethylsilane
- C9H28Si4
- tri(trimethylsilyl)silane
- Trisilane, 1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)-
Frequently asked questions
What is Tris(trimethylsilyl)silane (TTMSS) commonly used for?
Tris(trimethylsilyl)silane is primarily used as a reducing agent in organic synthesis, particularly for the reduction of carbonyl compounds (e.g., ketones, aldehydes) to their corresponding alcohols under mild conditions. It is also employed in radical chemistry and as a silylating agent.
What is the chemical formula and molecular weight of Tris(trimethylsilyl)silane?
The chemical formula is **C9H28Si4**, and the molecular weight is **248.66 g/mol**.
How should Tris(trimethylsilyl)silane be stored?
Store at **ambient temperature** in a tightly sealed container, away from moisture and oxidizing agents.
What purity grades or specifications does Molekula offer for this product?
Molekula supplies Tris(trimethylsilyl)silane in **high-purity research grade** (typically ≥97% by GC). Custom specifications may be available upon request.
Can Molekula supply Tris(trimethylsilyl)silane in bulk quantities?
Yes, Molekula can provide bulk quantities of Tris(trimethylsilyl)silane, with minimum order quantities and packaging options tailored to your needs.
What documentation comes with an order of Tris(trimethylsilyl)silane?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet. Additional documentation, such as a batch-specific CoA, can be provided upon request.
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.