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Molecular formula

C17H18Si

16 compounds have this formula on CompoundList.

Molar mass
250.42g/mol
Monoisotopic mass
250.1178Da
Atoms
36
Elements
3
Rings plus double bonds
10

The formula C17H18Si describes a molecule made of 17 carbon atoms, 18 hydrogen atoms and 1 silicon atom. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.

Elemental composition

  • C Carbon × 1781.54%
    12.011 × 17 = 204.187 g/mol
  • H Hydrogen × 187.25%
    1.008 × 18 = 18.144 g/mol
  • Si Silicon × 111.22%
    28.085 × 1 = 28.085 g/mol
Look up another formula

Compounds with the formula C17H18Si

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 16 of 16 compounds

4-(Trimethylsilyl)diphenylacetylene chemical structure, C17H18Si, CAS 136459-72-8
4-(Trimethylsilyl)diphenylacetylene
CAS 136459-72-8C17H18Si
((1,1'-Biphenyl)-4-ylethynyl)trimethylsilane chemical structure, C17H18Si, CAS 75867-42-4
((1,1'-Biphenyl)-4-ylethynyl)trimethylsilane
CAS 75867-42-4C17H18Si
9-Trimethylsilylanthracene chemical structure, C17H18Si, CAS 56272-35-6
9-Trimethylsilylanthracene
CAS 56272-35-6C17H18Si
Trimethyl(phenanthren-9-yl)silane chemical structure, C17H18Si, CAS 18209-95-5
Trimethyl(phenanthren-9-yl)silane
CAS 18209-95-5C17H18Si
Trimethyl(3-(phenylethynyl)phenyl)silane chemical structure, C17H18Si, CAS 136459-74-0
Trimethyl(3-(phenylethynyl)phenyl)silane
CAS 136459-74-0C17H18Si
Silacyclopent-3-ene, 3-methyl-1,1-diphenyl- chemical structure, C17H18Si, CAS 51343-48-7
Silacyclopent-3-ene, 3-methyl-1,1-diphenyl-
CAS 51343-48-7C17H18Si
(1,1'-Biphenyl-3-ylethynyl)(trimethyl)silane chemical structure, C17H18Si, CAS 918540-87-1
(1,1'-Biphenyl-3-ylethynyl)(trimethyl)silane
CAS 918540-87-1C17H18Si
Silane, 1H-inden-1-yldimethylphenyl- chemical structure, C17H18Si, CAS 27490-90-0
Silane, 1H-inden-1-yldimethylphenyl-
CAS 27490-90-0C17H18Si
2-Anthryltrimethylsilane chemical structure, C17H18Si, CAS 56272-41-4
2-Anthryltrimethylsilane
CAS 56272-41-4C17H18Si
Ethenyl(diphenyl)(prop-1-en-1-yl)silane chemical structure, C17H18Si, CAS 63453-12-3
Ethenyl(diphenyl)(prop-1-en-1-yl)silane
CAS 63453-12-3C17H18Si
Trimethyl(phenanthren-2-yl)silane chemical structure, C17H18Si, CAS 35980-13-3
Trimethyl(phenanthren-2-yl)silane
CAS 35980-13-3C17H18Si
Trimethyl(8-phenylocta-1,7-diene-3,5-diyn-1-yl)silane chemical structure, C17H18Si, CAS 648435-58-9
Trimethyl(8-phenylocta-1,7-diene-3,5-diyn-1-yl)silane
CAS 648435-58-9C17H18Si
2-Ethenyl-2-phenyl-1,2,3,4-tetrahydro-2-benzosiline chemical structure, C17H18Si, CAS 62381-48-0
2-Ethenyl-2-phenyl-1,2,3,4-tetrahydro-2-benzosiline
CAS 62381-48-0C17H18Si
[Bis(2,6-dimethylphenyl)methylidene]silane chemical structure, C17H18Si, CAS 646522-60-3
[Bis(2,6-dimethylphenyl)methylidene]silane
CAS 646522-60-3C17H18Si
([1,1'-Biphenyl]-2-ylethynyl)trimethylsilane chemical structure, C17H18Si, CAS 147492-79-3
([1,1'-Biphenyl]-2-ylethynyl)trimethylsilane
CAS 147492-79-3C17H18Si
Trimethyl(phenanthren-3-yl)silane chemical structure, C17H18Si, CAS 35980-14-4
Trimethyl(phenanthren-3-yl)silane
CAS 35980-14-4C17H18Si

Frequently asked questions

What is the molar mass of C17H18Si?

The molar mass of C17H18Si is 250.42 g/mol, calculated from standard atomic weights for 17 carbon atoms, 18 hydrogen atoms and 1 silicon atom. The monoisotopic mass is 250.1178 Da.

How many compounds have the formula C17H18Si?

CompoundList lists 16 compounds with the molecular formula C17H18Si, including 4-(Trimethylsilyl)diphenylacetylene, ((1,1'-Biphenyl)-4-ylethynyl)trimethylsilane, 9-Trimethylsilylanthracene. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.

What is the degree of unsaturation of C17H18Si?

C17H18Si has a degree of unsaturation of 10. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.