Tetrabutyl orthosilicate
- CAS No.
- 4766-57-8
- Chemical Name:
- Tetrabutyl orthosilicate
- Synonyms
- TETRA-N-BUTOXYSILANE;T1750;DK792;DK310;CT1750;CFS-578;DKSI164;DKFELEX0204;n-Butylsilicate;TETRABUTOXYSILANE
- CBNumber:
- CB4217992
- Molecular Formula:
- C16H36O4Si
- Molecular Weight:
- 320.54
- MDL Number:
- MFCD00009432
- MOL File:
- 4766-57-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Tetrabutyl orthosilicate 97% | T5702 | 100g | $157 |
| Tetrabutyl Orthosilicate >98.0%(GC) | T1126 | 25mL | $45 |
| Tetrabutyl Orthosilicate >98.0%(GC) | T1126 | 500mL | $302 |
| Tetrabutoxysilane, min. 97% min.97% | 93-1451 | 10g | $26 |
| Tetrabutoxysilane, min. 97% min.97% | 93-1451 | 50g | $94 |
| More product size | |||
| Melting point | -80 °C |
|---|---|
| Boiling point | 275 °C (lit.) |
| Density | 0.899 g/mL at 25 °C (lit.) |
| vapor density | >1 (vs air) |
| refractive index |
n |
| Flash point | 174 °F |
| storage temp. | Sealed in dry,Room Temperature |
| form | liquid |
| color | colorless |
| Specific Gravity | 0.9 |
| Water Solubility | reacts |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 1709274 |
| InChI | 1S/C16H36O4Si/c1-5-9-13-17-21(18-14-10-6-2,19-15-11-7-3)20-16-12-8-4/h5-16H2,1-4H3 |
| InChIKey | UQMOLLPKNHFRAC-UHFFFAOYSA-N |
| SMILES | CCCCO[Si](OCCCC)(OCCCC)OCCCC |
| CAS DataBase Reference | 4766-57-8(CAS DataBase Reference) |
| FDA UNII | JXZ9KZ2G2R |
| NIST Chemistry Reference | Tetrabutyl silicate(4766-57-8) |
| EPA Substance Registry System | Silicic acid (H4SiO4), tetrabutyl ester (4766-57-8) |
| UNSPSC Code | 12352103 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P305+P351+P338-P264-P280a-P321-P332+P313-P337+P313 | |||||||||
| PPE | Eyeshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36/37/39-37/39 | |||||||||
| RIDADR | UN2924 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 10-21 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29209090 | |||||||||
| Storage Class | 10 - Combustible liquids | |||||||||
| NFPA 704 |
|
Tetrabutyl orthosilicate price More Price(22)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | T5702 | Tetrabutyl orthosilicate 97% | 4766-57-8 | 100g | $157 | 2026-04-30 | Buy |
| TCI Chemical | T1126 | Tetrabutyl Orthosilicate >98.0%(GC) | 4766-57-8 | 25mL | $45 | 2026-04-30 | Buy |
| TCI Chemical | T1126 | Tetrabutyl Orthosilicate >98.0%(GC) | 4766-57-8 | 500mL | $302 | 2026-04-30 | Buy |
| Strem Chemicals | 93-1451 | Tetrabutoxysilane, min. 97% min.97% | 4766-57-8 | 10g | $26 | 2026-04-30 | Buy |
| Strem Chemicals | 93-1451 | Tetrabutoxysilane, min. 97% min.97% | 4766-57-8 | 50g | $94 | 2026-04-30 | Buy |
Tetrabutyl orthosilicate Chemical Properties,Uses,Production
Introduction
The ethyl group of ethyl silicate is replaced by N-butyl, so the speed of hydrolysis is even slower than N-propyl silicate, and in addition to a cross-linking agent for silicon rubber, and a modifying agent for organic and inorganic resins, it can also be used as a heating medium or cooling medium by making it a condensate. There are also hopes for applications to electron donors in Ziegler-Natta catalysts.
Chemical Properties
Colorless transparent liquid
Uses
It is an important organic intermediate used in agrochemicals, pharmaceuticals and dyestuff fields and also in the alkylation and alkoxylation of silane.
Tetrabutyl orthosilicate Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Zhuangming Biopharma Co., Ltd. | inquiry@zmsilane.com | China | 725 | 58 | |
| ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | +86-13017695106 +86-13676922317 | jiuyitime@fdachem.com | China | 16513 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 13901 | 58 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29815 | 58 |
| Hubei Co-Formula Material Tech Co., Ltd. | +86-27-84459282 | sales@cfmats.com | CHINA | 882 | 58 |
| Hubei Ipure Biology Co., Ltd | +8613367258412 | ada@ipurechemical.com | China | 10236 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| HONG KONG IPURE BIOLOGY CO.,LIMITED | 86 18062405514 18062405514 | ada@ipurechemical.com | CHINA | 3461 | 58 |
| Win-Win chemical CO., Limited | +86-0086-577-64498589 +86-15355981851 | sales@win-winchemical.com | China | 14304 | 58 |
View Lastest Price from Tetrabutyl orthosilicate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-04-17 | Silane, tetrabutoxy-
4766-57-8
|
US $1.10-9.90 / kg | 1kg | 99%min | 100kg | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | |
![]() |
2019-07-06 | Tetrabutyl orthosilicate
4766-57-8
|
US $2.00 / KG | 1KG | 99% | customsie | Career Henan Chemical Co |
-

- Silane, tetrabutoxy-
4766-57-8
- US $1.10-9.90 / kg
- 99%min
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
-

- Tetrabutyl orthosilicate
4766-57-8
- US $2.00 / KG
- 99%
- Career Henan Chemical Co





