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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
Last updated:2026-04-24 14:58:57
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

Tetrabutyl orthosilicate Properties

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 n20/D 1.413(lit.)
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)  GHS hazard pictograms
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
10-21
TSCA  TSCA listed
HazardClass  8
PackingGroup  III
HS Code  29209090
Storage Class 10 - Combustible liquids
NFPA 704
2
2 0

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
Product number Packaging Price Buy
T5702 100g $157 Buy
T1126 25mL $45 Buy
T1126 500mL $302 Buy
93-1451 10g $26 Buy
93-1451 50g $94 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

Global( 209)Suppliers
Supplier Tel Email 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
Silane, tetrabutoxy- pictures 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
Tetrabutyl orthosilicate pictures 2019-07-06 Tetrabutyl orthosilicate
4766-57-8
US $2.00 / KG 1KG 99% customsie Career Henan Chemical Co
Tetrabutylsilicate Silicon n-butoxide Tetra-n-butoxysilane,97% Tetrabutoxysilane,min.97% tetrabutyl orthosilice Tetra-n-butoxysilane(Tetrabutylorthosilicate) Tetrabutoxysilane, min. 97% Orthosilicic acid tetrabutyl ester Tetrabutyl orthosilicate,95% Tetrabutyl orthosilicate, 95% 25GR Tetrabutyl orthosilicate 97% SILICON TETRA-N-BUTOXIDE TETRA-N-BUTYL ORTHOSILICATE TETRABUTYL ORTHOSILICATE TETRABUTOXYSILANE Butyl silicate ((BuO)4Si) Butyl silicate ((C4H9O)4Si) CT1750 n-Butylsilicate Silane, tetrabutoxy- Silicic acid (H4SiO4), tetrabutyl ester Silicic acid, tetrabutyl ester silicicacid(h4sio4),tetrabutylester Silicicacid,tetrabutylester silicicacidtetrabutylester Silicon tetrabutoxide T1750 CFS-578 Co-Formula CFS-578 DK792 DK310 DKFELEX0204 DKSI164 TETRA-N-BUTOXYSILANE 4766-57-8 SiOC4H94 C16H36O4Si CH3CH2CH2CH2O4Si Silicates Organometallic Reagents Organosilicon Si-O Compounds Si (Classes of Silicon Compounds) Tetraalkoxysilanes organosilicon compounds Solution Deposition Precursors Chemical Synthesis Materials Science Micro/NanoElectronics Organometallic Reagents Organosilicon Silicates Silicon Si (Classes of Silicon Compounds) Si-O Compounds Tetraalkoxysilanes Crosslinkers Crosslinking Agents