Octadecyltrimethoxysilane, 90%, Tech.

Description

CAS: 3069-42-9 | C₂₁H₄₆O₃Si | 374.69 g/mol

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 3069-42-9
• Molecular Formula: C₂₁H₄₆O₃Si
• Molecular Weight (g/mol): 374.69
• MDL Number: MFCD00043060
• InChI Key: SLYCYWCVSGPDFR-UHFFFAOYSA-N
• Synonym: octadecyltrimethoxysilane, trimethoxy octadecyl silane, n-octadecyltrimethoxysilane, stearyltrimethoxysilane, silane, trimethoxyoctadecyl, octadecyl-trimethoxysilane, acmc-209hi7, ksc491g4l, trimethoxy octadecyl silane, technical grade
• PubChem CID: 76486
• IUPAC Name: trimethoxy(octadecyl)silane
• SMILES: CCCCCCCCCCCCCCCCCC[Si](OC)(OC)OC

• CAS Min %: 88.0
• CAS Max %: 100.0
• Melting Point: 13°C to 17°C
• Color: Colorless to Yellow
• Density: 0.8800g/mL
• Boiling Point: 170°C (0.1 mmHg)
• Flash Point: 139°C
• Infrared Spectrum: Authentic
• Assay Percent Range: 88% min. Total octadecyltrimethoxysilanes (GC)
• Packaging: Glass bottle
• Refractive Index: 1.4380 to 1.44
• Linear Formula: CH₃(CH₂)₁₇Si(OCH₃)₃
• Quantity: 100 mL
• Specific Gravity: 0.88
• Solubility Information: Solubility in water: insoluble (reacts)
• Formula Weight: 374.69
• Percent Purity: 90%
• Grade: Technical
• Physical Form: Liquid
• Chemical Name or Material: Octadecyltrimethoxysilane

Safety and Handling

Hazard Category	GHS Signal Word: Warning
Hazard Statement	GHS H Statement Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	GHS P Statement Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses,if present and easy to do. Continue rinsing.
EINECSNumber	221-339-2
Recommended Storage	Product may become turbid on storage

SDS

RUO – Research Use Only