Molekula
Octyltrichlorosilane 97%
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Certificate of Analysis with every batch
Octyltrichlorosilane (CAS 5283-66-9) is a chlorosilane coupling agent used to modify surfaces for improved adhesion, water repellency, and chemical resistance in composites, coatings, and glass fiber treatments. It also serves as a chemical intermediate in the production of silicones. This technical-grade reagent has a molecular formula of C8H17Cl3Si and a molecular weight of 247.6651 g/mol. It requires ambient storage, carries no signal word under GHS classification, and is supplied as 97% pure. Molekula supplies Octyltrichlorosilane from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.
Overview
- SKU
- 26431241
- CAS Number
- 5283-66-9
- IUPAC Name
- trichloro(octyl)silane
- EC Number
- 226-112-1
- Molecular Formula
- C8H17Cl3Si
- Molecular Weight
- 247.6651
- Exact Mass
- 246.0165
- SMILES
- CCCCCCCC[Si](Cl)(Cl)Cl
- InChIKey
- RCHUVCPBWWSUMC-UHFFFAOYSA-N
- InChI
- InChI=1S/C8H17Cl3Si/c1-2-3-4-5-6-7-8-12(9,10)11/h2-8H2,1H3
- PubChem CID
- 21354
Synonyms
- C8H17Cl3Si
- LS 2190
- n-Octyltrichlorosilane
- s12750
- Silane, octyltrichloro-
- Silane, trichlorooctyl-
- Trichloro-n-octylsilane
- Trichloro(octyl)silane pound OTS pound(c)
- Trichlorooctylsilane
- UN 1801
Literature values
Published physical properties of the substance, not batch specifications.
- Appearance
- Fuming liquid
- Odour
- Pungent, irritating odor
- Boiling Point
- 232 °C
- Density
- 1.073 g/cm³
- Solubility (other solvents)
- Soluble in carbon tetrachloride
- Refractive Index
- 1.4480
Source: PubChem CID 21354 (HSDB)
Frequently asked questions
What is octyltrichlorosilane (97%) commonly used for?
Octyltrichlorosilane is primarily used for surface modification, such as silanization of glass, metals, and plastics to improve adhesion, water repellency, or compatibility with other materials in coatings, electronics, and laboratory applications.
What is the chemical formula and molecular weight of octyltrichlorosilane?
The chemical formula is **C₈H₁₇Cl₃Si**, and the molecular weight is **247.6651 g/mol**.
How should octyltrichlorosilane (97%) be stored?
Store at **ambient temperature** in a cool, dry, well-ventilated area, away from moisture and incompatible substances. Keep containers tightly sealed.
What purity grade is available for octyltrichlorosilane from Molekula?
Molekula supplies octyltrichlorosilane at **97% purity**.
Can Molekula supply octyltrichlorosilane in bulk quantities?
Yes, Molekula can provide octyltrichlorosilane in **bulk quantities**—please contact us for specific packaging options and minimum order quantities.
What documentation comes with an order of octyltrichlorosilane?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet. Additional documentation, such as a batch-specific CoA, can be provided upon request.
Molekula has supplied fine chemicals and biochemicals since 1999, and its facilities are ISO 9001:2015 and ISO 14001:2015 certified. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.