tert-Butyldimethylsilane
- CAS No.
- 29681-57-0
- Chemical Name:
- tert-Butyldimethylsilane
- Synonyms
- T-BUTYLDIMETHYLSILANE;CFS-570;DKSI032;Co-Formula CFS-570;Butyldimethylsilane;t-Butyldimethylsilyl;triethyl-propyl-silane;TERT-BUTYLDIMETHYLSILANE;Dimethyl tert-butylsilane;Butyl dimethylhydrosilane
- CBNumber:
- CB0399704
- Molecular Formula:
- C6H16Si
- Molecular Weight:
- 116.28
- MDL Number:
- MFCD00010754
- MOL File:
- 29681-57-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 13°C |
|---|---|
| Boiling point | 81-83 °C (lit.) |
| Density | 0.701 g/mL at 25 °C (lit.) |
| refractive index |
n |
| Flash point | −9 °F |
| storage temp. | under inert gas (nitrogen or Argon) at 2-8°C |
| form | clear liquid |
| color | Colorless to Almost colorless |
| Specific Gravity | 0.701 |
| Hydrolytic Sensitivity | 3: reacts with aqueous base |
| BRN | 2231162 |
| InChI | InChI=1S/C6H16Si/c1-6(2,3)7(4)5/h7H,1-5H3 |
| InChIKey | QCIWZIYBBNEPKB-UHFFFAOYSA-N |
| SMILES | [SiH](C(C)(C)C)(C)C |
| CAS DataBase Reference | 29681-57-0 |
| UNSPSC Code | 12352103 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() ![]() GHS02,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H315-H319-H335 | |||||||||
| Precautionary statements | P210-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | F,Xi | |||||||||
| Risk Statements | 11-36/37/38 | |||||||||
| Safety Statements | 16-26-36-16/26/36 | |||||||||
| RIDADR | UN 1993 3/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 10-21 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 3.1 | |||||||||
| PackingGroup | I | |||||||||
| HS Code | 29319090 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Flam. Liq. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| Limited Quantities | 1.0 L (0.3 gallon) (liquid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704 |
|
tert-Butyldimethylsilane price More Price(25)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 294764 | tert-Butyldimethylsilane 95% | 29681-57-0 | 5g | $123 | 2026-04-30 | Buy |
| Sigma-Aldrich | 294764 | tert-Butyldimethylsilane 95% | 29681-57-0 | 25g | $303 | 2026-04-30 | Buy |
| TCI Chemical | B3565 | tert-Butyldimethylsilane >95.0%(GC) | 29681-57-0 | 5g | $58 | 2026-04-30 | Buy |
| Usbiological | 263684 | tert-Butyldimethylsilane Asreported | 29681-57-0 | 2g | $402 | 2026-06-03 | Buy |
| Usbiological | 263684 | tert-Butyldimethylsilane Asreported | 29681-57-0 | 5g | $648 | 2026-06-03 | Buy |
tert-Butyldimethylsilane Chemical Properties,Uses,Production
Uses
Tert-Butyldimethylsilane (t-BuMe2SiH) is widely used for the protection of hydroxy groups in sugars. Its oxidation product, tert-butyldimethylsilyl hydroperoxide (t-BuMe2SiOOH), is used for preparing luminiscent sources and prostanoids, specifically clavulons[1].
Reactions
The iridium complex [Ir(COD)(PPh3)2]+SbF6- reacts with tert-butyldimethylsilane in DMA to form [IrH2(Sol)2(PPh3)2]+SbF6-, which is an active catalyst for the regioselective di- and trisilylation of a series of representative methyl hexopyranosides, β-1,6-anhydrohexopyranosides and 1,3,5-O-methylidene inositol.The silylcarbobicyclization of 4,4-disubstituted 1,6-heptadiynes with tert-butyldimethylsilane catalyzed by Rh(acac)(CO)2, Co2Rh2(CO)12, or (t-BuNC)4RhCo(CO)4 under 50 atm of carbon monoxide gives the corresponding novel 7,7-disubstituted 2-silylbicyclo[3.3.0]octa-1,5-dien-3-ones in good yields[2-3].
References
[1] Iwao Ojima, Jiawang Zhu, Dora Fracchiolla Kass. “New and Efficient Catalytic Route to Bicyclo[3.3.0]octa-1,5-dien-3-ones.” Organometallics 15 24 (1996): 5191–5195.
[2] Mee-Kyung Chung, Marcel Schlaf. “Regioselectively Trisilylated Hexopyranosides through Homogeneously Catalyzed Silane Alcoholysis.” Journal of the American Chemical Society 127 51 (2005): 18085–18092.
[3] Iwao Ojima, Jiawang Zhu, Dora Fracchiolla Kass. “New and Efficient Catalytic Route to Bicyclo[3.3.0]octa-1,5-dien-3-ones.” Organometallics 15 24 (1996): 5191–5195.
tert-Butyldimethylsilane Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai chuqing Organosilane technology ltd | 021-61530618; 18721685818 | sales@chuqingtech.com | China | 274 | 55 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Jia Xing Isenchem Co.,Ltd | 0573-85285100 18627885956 | isenchem@163.com | China | 9389 | 66 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Syntechem Co.,Ltd | info@syntechem.com | China | 12973 | 57 | |
| Novel Chemical | +86-21-64855560, 4008207808 | sales@novelglobal.com | China | 124 | 62 |
| Thermo Fisher Scientific | 800-810-5118 | cnchemical@thermofisher.com | China | 17752 | 75 |
View Lastest Price from tert-Butyldimethylsilane manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-09-11 | tert-Butyldimethylsilane
29681-57-0
|
1KG | 96% | 20t | Hubei Changfu Chemical Co., Ltd. | ||
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2026-08-25 | tert-Butyldimethylsilane
29681-57-0
|
$1.10-9.90 | 1kg | 99%min | 100kg | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | |
![]() |
2025-06-20 | T-BUTYLDIMETHYLSILANE
29681-57-0
|
$10.00-30.00 | 1kg | 0.99 | 10 tons | Hebei Yanxi Chemical Co., Ltd. |
-

- tert-Butyldimethylsilane
29681-57-0
- $0.00
- 96%
- Hubei Changfu Chemical Co., Ltd.
-

- tert-Butyldimethylsilane
29681-57-0
- $1.10-9.90
- 99%min
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
-

- T-BUTYLDIMETHYLSILANE
29681-57-0
- $10.00-30.00
- 0.99
- Hebei Yanxi Chemical Co., Ltd.
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