Product Name

  • Name

    2-(trimethoxysilyl)ethanethiol

  • EINECS
  • CAS No. 7538-45-6
  • Density 1.013g/cm3
  • Solubility
  • Melting Point
  • Formula C5H14O3SSi
  • Boiling Point 195.2°Cat760mmHg
  • Molecular Weight 182.316
  • Flash Point 71.8°C
  • Transport Information
  • Appearance
  • Safety Poison by intraperitoneal route. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of SOx. See also MERCAPTANS.
  • Risk Codes
  • Molecular Structure Molecular Structure of 7538-45-6 (2-(trimethoxysilyl)ethanethiol)
  • Hazard Symbols
  • Synonyms EINECS 231-409-4;Mercaptoethyltrimethoxysilane;2-trimethoxysilanyl-ethanethiol;trimethoxysilylethanethiol;
  • PSA 66.49000
  • LogP 0.79430

2-Mercaptoethyl trimethoxy silane Chemical Properties

Product Name: 2-Mercaptoethyl trimethoxy silane (CAS NO.7538-45-6)


Molecular Formula: C5H14O3SSi
Molecular Weight: 2.31336g/mol
Mol File: 7538-45-6.mol
Einecs: 231-409-4
Boiling point: 195.2 °C at 760 mmHg
Storage Temperature:
Flash Point: 71.8 °C
Density: 1.013 g/cm3
Surface Tension: 24.6 dyne/cm
Enthalpy of Vaporization: 41.37 kJ/mol
Vapour Pressure: 0.596 mmHg at 25°
H-Bond Donor: 0
H-Bond Acceptor: 3
Rotatable Bond Count: 5
Topological Polar Surface Area: 27.7
Heavy Atom Count: 10
Complexity: 78.7
ntly-Bonded Unit Count: 1

2-Mercaptoethyl trimethoxy silane Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 17mg/kg (17mg/kg)   Doklady Akademii Nauk SSSR. Proceedings of the Academy of Sciences of the USSR. For English translation, see DBIOAM and DKBSAS. Vol. 229, Pg. 1011, 1976.
rat LD50 oral 2460uL/kg (2.46mL/kg)   American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969.

2-Mercaptoethyl trimethoxy silane Consensus Reports

Reported in EPA TSCA Inventory.

2-Mercaptoethyl trimethoxy silane Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of SOx. See also MERCAPTANS.

2-Mercaptoethyl trimethoxy silane Specification

 2-Mercaptoethyl trimethoxy silane ,its CAS NO. is 7538-45-6,the synonyms is 2-(Trimethoxysilyl)ethanethiol ;Ethanethiol, 2-(trimethoxysilyl)- ; Mercaptoethyltrimethoxysilane ; Silane, (2-Mercaptoethyl)trimethoxy- ; 2-(Trimethoxysilyl)ethanethiol .

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