Product Name

  • Name

    METHYLTRI-N-PROPOXYSILANE

  • EINECS 226-978-0
  • CAS No. 5581-66-8
  • Article Data12
  • CAS DataBase
  • Density 0.887 g/cm3
  • Solubility
  • Melting Point
  • Formula C10H24O3Si
  • Boiling Point 180.1 °C at 760 mmHg
  • Molecular Weight 220.384
  • Flash Point 69.6 °C
  • Transport Information UN 1993 3
  • Appearance Colorless Clear Liquid
  • Safety 26-36
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 5581-66-8 (METHYLTRI-N-PROPOXYSILANE)
  • Hazard Symbols IrritantXi
  • Synonyms LS 3630;Methyltripropoxysilane;methyl(tripropoxy)silane;silane, methyltripropoxy-;Methyltripropoxysilane;
  • PSA 27.69000
  • LogP 2.83490

Methyl-tripropoxysilane Specification

The Methyl-tripropoxysilane, with the CAS registry number 5581-66-8 and EINECS registry number 226-978-0, has the systematic name of methyl(tripropoxy)silane. It is a kind of colorless clear liquid, and the molecular formula of the chemical is C10H24O3Si.

The characteristics of Methyl-tripropoxysilane are as followings: (1)ACD/LogP: 3.32; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.32; (4)ACD/LogD (pH 7.4): 3.32; (5)ACD/BCF (pH 5.5): 197.96; (6)ACD/BCF (pH 7.4): 197.96; (7)ACD/KOC (pH 5.5): 1532.86; (8)ACD/KOC (pH 7.4): 1532.86; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 9; (12)Polar Surface Area: 27.69Å2; (13)Index of Refraction: 1.415; (14)Molar Refractivity: 62.33 cm3; (15)Molar Volume: 248.4 cm3; (16)Polarizability: 24.7×10-24cm3; (17)Surface Tension: 23.7 dyne/cm; (18)Density: 0.887 g/cm3; (19)Flash Point: 69.6 °C; (20)Enthalpy of Vaporization: 39.93 kJ/mol; (21)Boiling Point: 180.1 °C at 760 mmHg; (22)Vapour Pressure: 1.24 mmHg at 25°C.

Uses of Methyl-tripropoxysilane: It can react with 3-methyl-butane-1,3-diol to produce 2,4,4-trimethyl-2-propoxy-1,3-dioxa-2-silacyclohexane. This reaction will need reagent HCl, and temperature of 98°C, and the yield is about 65%.   

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin. Therefore, you had better take the following instructions: Wear suitable protective clothing, and if in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: O(CCC)[Si](OCCC)(OCCC)C
(2)InChI: InChI=1/C10H24O3Si/c1-5-8-11-14(4,12-9-6-2)13-10-7-3/h5-10H2,1-4H3
(3)InChIKey: RJMRIDVWCWSWFR-UHFFFAOYAE

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