Trimethoxy(octadecyl)silane , 90% , 3069-42-9

Synonym(s):
Octadecyltrimethoxysilane

CAS NO.：3069-42-9

Empirical Formula: C21H46O3Si

Molecular Weight: 374.67

MDL number: MFCD00043060

EINECS: 221-339-2

PRODUCT Properties

• Melting point: 16-17 °C(lit.)
• Boiling point: 170 °C (0.1 mmHg)
• Density: 0.883 g/mL at 25 °C(lit.)
• vapor pressure: 0.001Pa at 25℃
• refractive index: n20/D 1.439(lit.)
• Flash point: 284 °F
• storage temp.: Inert atmosphere,Room Temperature
• solubility: Chloroform (Slightly)
• form: liquid
• Specific Gravity: 0.883
• color: Colourless
• Water Solubility: 190-437000ng/L at 20℃
• Hydrolytic Sensitivity: 7: reacts slowly with moisture/water
• BRN: 5791830
• Stability: Stable. Incompatible with strong oxidizing agents. Moisture sensitive.
• InChI: 1S/C21H46O3Si/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-25(22-2,23-3)24-4/h5-21H2,1-4H3
• InChIKey: SLYCYWCVSGPDFR-UHFFFAOYSA-N
• SMILES: CCCCCCCCCCCCCCCCCC[Si](OC)(OC)OC
• LogP: 6
• CAS DataBase Reference: 3069-42-9(CAS DataBase Reference)
• NIST Chemistry Reference: Octadecyltrimethoxysilane(3069-42-9)
• EPA Substance Registry System: Silane, trimethoxyoctadecyl- (3069-42-9)

Description and Uses

OTS is used for the development of self assembled monolayers(SAMs). OTS is also used to modify the silica dielectric surface in organic field effect transistors.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P280-P261
• PPE: Eyeshields, Gloves, type ABEK (EN14387) respirator filter
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 1
• F: 10-21
• TSCA: TSCA listed
• HS Code: 29319090
• Storage Class: 10 - Combustible liquids