ChemicalBook >> CAS DataBase List >>Methyltriacetoxysilane
Methyltriacetoxysilane
- CAS No.
- 4253-34-3
- Chemical Name:
- Methyltriacetoxysilane
- Synonyms
- MTAS;KH-310;Triacetoxy(methyl)si;LABOTEST-BB LT01406986;apk1(silanederivative);Modified methyltriacetoxysilance;k10s;silanetriol,;Triacetoxy(methyL;METHYLTRIACETOXYSILANE
- CBNumber:
- CB0122458
- Molecular Formula:
- C7H12O6Si
- Molecular Weight:
- 220.25
- MDL Number:
- MFCD00008694
- MOL File:
- 4253-34-3.mol
- MSDS File:
- SDS
Last updated:2026-05-27 17:05:17
| Product description | Number | Pack Size | Price |
| Triacetoxy(methyl)silane technical grade, 90% | 372358 | 100g | $193 |
| Triacetoxymethylsilane >90.0%(GC) | T1786 | 25g | $31 |
| Methyltriacetoxysilane 90% | AA003UWT | 1g | $24 |
| Methyltriacetoxysilane >90.0%(GC) | AA003UWT | 25g | $25 |
| Methylsilanetriyl triacetate 97% | CD00004052 | 100g | $50 |
| More product size | |||
| Melting point | 40-45 °C(lit.) |
|---|---|
| Boiling point | 94-95 °C9 mm Hg(lit.) |
| Density | 1.20 g/mL at 20 °C(lit.) |
| vapor pressure | 0.053-26Pa at 20-25℃ |
| refractive index | 1.52-1.522 |
| Flash point | 185 °F |
| solubility | soluble in Methanol |
| form | solid |
| Specific Gravity | 1.175 |
| color | White or Colorless to Almost white or Almost colorless |
| Odor | Acrid odor |
| Water Solubility | 1000g/L at 20℃ |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| Sensitive | Moisture Sensitive |
| BRN | 1788668 |
| InChI | 1S/C7H12O6Si/c1-5(8)11-14(4,12-6(2)9)13-7(3)10/h1-4H3 |
| InChIKey | TVJPBVNWVPUZBM-UHFFFAOYSA-N |
| SMILES | CC(=O)O[Si](C)(OC(C)=O)OC(C)=O |
| LogP | -2.4 at 20℃ |
| CAS DataBase Reference | 4253-34-3(CAS DataBase Reference) |
| FDA UNII | W4FX3GZ7AB |
| NIST Chemistry Reference | Methyltriacetoxysilane(4253-34-3) |
| EPA Substance Registry System | Silanetriol, 1-methyl-, 1,1,1-triacetate (4253-34-3) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H314 | |||||||||
| Precautionary statements | P260-P280-P301+P312+P330-P301+P330+P331-P303+P361+P353-P305+P351+P338 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36 | |||||||||
| RIDADR | UN1759 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | VV4500000 | |||||||||
| F | 9-21 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29319090 | |||||||||
| Storage Class | 8A - Combustible corrosive hazardous materials | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Skin Corr. 1B |
|||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
Methyltriacetoxysilane price More Price(12)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 372358 | Triacetoxy(methyl)silane technical grade, 90% | 4253-34-3 | 100g | $193 | 2026-04-30 | Buy |
| TCI Chemical | T1786 | Triacetoxymethylsilane >90.0%(GC) | 4253-34-3 | 25g | $31 | 2026-04-30 | Buy |
| aablocks | AA003UWT | Methyltriacetoxysilane 90% | 4253-34-3 | 1g | $24 | 2026-05-28 | Buy |
| aablocks | AA003UWT | Methyltriacetoxysilane >90.0%(GC) | 4253-34-3 | 25g | $25 | 2026-05-28 | Buy |
| Crysdot | CD00004052 | Methylsilanetriyl triacetate 97% | 4253-34-3 | 100g | $50 | 2026-05-26 | Buy |
Methyltriacetoxysilane Chemical Properties,Uses,Production
Chemical Properties
Methyltriacetoxysilane (MTAC) is a clear to yellowish liquid with acrid odor of acetic acid (vinegar). It hydrolyzes in the presence of moisture (acetic acid is released) to form silanols, which can react with themselves to pro-duce siloxanes or bind to inorganic substrates.
Uses
Methyltriacetoxysilane is used as a silane coupling agent.
Flammability and Explosibility
Not classified
Toxics Screening Level
The initial threshold screening level (ITSL) for methyltriacetoxysilane (CASRN 4253-34-3) remains at 0.1 μg/m3 based on an annual averaging time.
Methyltriacetoxysilane Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
Global( 331)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5220 | 58 |
| Hebei Fengjia New Material Co., Ltd | +86-0311-87836622 +86-18712993135 | sales01@tairunfaz.com | China | 8051 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20120 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Shandong Deshang Chemical Co., Ltd. | +86-0531-8875-2665 +8613153039501 | info@deshangchem.com | China | 661 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 14026 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21585 | 55 |
| 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 | 29812 | 58 |
View Lastest Price from Methyltriacetoxysilane manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-09 | Methyltriacetoxysilane
4253-34-3
|
$8.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd | ||
 |
2026-05-28 | Methyltriacetoxysilane
4253-34-3
|
$2.00-5.00 | 1KG | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-03-20 | Methyltriacetoxysilane
4253-34-3
|
$9.90 | 1KG | 99% | 5tons | Hebei Chuanghai Biotechnology Co., Ltd |
-
- Methyltriacetoxysilane
4253-34-3
- $8.00
- 99%
- Henan Fengda Chemical Co., Ltd
-
- Methyltriacetoxysilane
4253-34-3
- $2.00-5.00
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- Methyltriacetoxysilane
4253-34-3
- $9.90
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
4253-34-3(Methyltriacetoxysilane)Related Search:
k10s
methylsilanetrioltriacetate
methyl-silanetriotriacetate
methyltriacetoxy-silan
Methylsilanetriyl triacetate
METHYLTRIACETOXYSILANE
Silanetriol, 1-Methyl-,1,1,1-triacetate
Triacetic acid methylsilanetriyl ester
METHYLTRIACETOXYSILANE-ETHYLTRIACETOXYSILANE 80:20 Blend
methyltrihydroxysilanetriacetate
silanetriol,
Silanetriol, methyl-, triacetate
Silanetriol,methyl-,triacetate
TRIACETOXYMETHYLSILANE
METHYLTRIACETOXYSILANE, TECH., 90%
Triacetoxymethylsilane,96%
Methyl-Triacethoxysilane
METHYLTRIACETOXYSILANE EETHYLTRIACETOXYSILANE 80:20 BLEND
Triacetoxy(methyL
Methyltrimethoxygroupsilane
Modified methyltriacetoxysilane
Triacetoxy(methyl)silane technical grade, 90%
LABOTEST-BB LT01406986
apk1(silanederivative)
Triacetoxy(methyl)si
KH-310
Methyltriacetoxysilane IOTA 5100
Methyltriacetoxysilane,Magnesium ascorbyl phosphate
Modified methyltriacetoxysilance
MTAS
4253-34-3
C7H12O6Si
CH3CO23SiCH3
Building Blocks
C6 to C7
Carbonyl Compounds
Si (Classes of Silicon Compounds)
Silane Coupling Agents
Si-O Compounds
Silyl Esters
Silane Coupling Agents (Intermediates)
Organic Building Blocks
Esters
Si (Classes of Silicon Compounds)
Silane Coupling Agents
Silane Coupling Agents (Intermediates)
Silyl Esters
Si-O Compounds
Acetoxy Silanes
Crosslinkers
Crosslinking Agents
Functional Materials
Silicone series
Alkyl
