Molecular formula

C₉H₁₈O₂Si

43 compounds have this formula on CompoundList.

Molar mass: 186.33g/mol
Monoisotopic mass: 186.1076Da
Atoms: 30
Elements: 4
Rings plus double bonds: 2

The formula C9H18O2Si describes a molecule made of 9 carbon atoms, 18 hydrogen atoms, 2 oxygen 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 × 958.02%
12.011 × 9 = 108.099 g/mol
H Hydrogen × 189.74%
1.008 × 18 = 18.144 g/mol
O Oxygen × 217.17%
15.999 × 2 = 31.998 g/mol
Si Silicon × 115.07%
28.085 × 1 = 28.085 g/mol

Look up another formula

Compounds with the formula C9H18O2Si

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

Showing 1 to 43 of 43 compounds

2-(Trimethylsilylmethyl)allyl acetate

CAS 72047-94-0C₉H₁₈O₂Si

Ethyl 2-(trimethylsilylmethyl)acrylate

CAS 74976-84-4C₉H₁₈O₂Si

Methyl 3-(trimethylsilyl)-4-pentenoate

CAS 185411-12-5C₉H₁₈O₂Si

[(4-Methoxy-3-methylbuta-1,3-dien-2-yl)oxy](trimethyl)silane

CAS 77228-16-1C₉H₁₈O₂Si

[(1-Methoxy-3-methylbuta-1,3-dien-1-yl)oxy](trimethyl)silane

CAS 73311-51-0C₉H₁₈O₂Si

[(4-Methoxypenta-1,3-dien-2-yl)oxy](trimethyl)silane

CAS 69964-34-7C₉H₁₈O₂Si

AG-G-75877

CAS 70639-89-3C₉H₁₈O₂Si

Trimethylsilyl cyclopentanecarboxylate

CAS 84678-75-1C₉H₁₈O₂Si

2-Propenoic acid, 2-methyl-, 2-(trimethylsilyl)ethyl ester

CAS 95049-21-1C₉H₁₈O₂Si

Ethyl (1S,2S)-2-(trimethylsilyl)cyclopropane-1-carboxylate

CAS 5120-52-5C₉H₁₈O₂Si

[Ethenyl(dimethyl)silyl] pentanoate

CAS 959056-23-6C₉H₁₈O₂Si

Cyclohexanone, 2-[(trimethylsilyl)oxy]-

CAS 53638-19-0C₉H₁₈O₂Si

4-[(Trimethylsilyl)oxy]cyclohexanone

CAS 23510-94-3C₉H₁₈O₂Si

(4-Hydroxy-5-methoxypent-1-yn-1-yl)trimethylsilane

CAS 2095409-76-8C₉H₁₈O₂Si

4-Cyclohexene-1,2-diol, 3-(trimethylsilyl)-, (1S,2S,3S)-

CAS 256942-83-3C₉H₁₈O₂Si

Silane, trimethyl[(4,5,6,7-tetrahydro-2-oxepinyl)oxy]-

CAS 87532-05-6C₉H₁₈O₂Si

4-(Propan-2-yl)-3-(trimethylsilyl)oxetan-2-one

CAS 139609-11-3C₉H₁₈O₂Si

tert-Butyl(dimethyl)silyl prop-2-enoate

CAS 98983-18-7C₉H₁₈O₂Si

3-Methyl-4-[(trimethylsilyl)oxy]-3-penten-2-one

CAS 13257-82-4C₉H₁₈O₂Si

[(1-Ethoxybuta-1,3-dien-1-yl)oxy](trimethyl)silane

CAS 114996-00-8C₉H₁₈O₂Si

[(1-Methoxy-2-methylbuta-1,3-dien-1-yl)oxy](trimethyl)silane

CAS 75436-68-9C₉H₁₈O₂Si

Methyl (3S)-3-(trimethylsilyl)-4-pentenoate

CAS 2566444-42-4C₉H₁₈O₂Si

2-Hexenoic acid, trimethylsilyl ester, (E)-

CAS 88239-46-7C₉H₁₈O₂Si

Cyclopropanecarboxylic acid, 1-methyl-2-(trimethylsilyl)-, methyl ester

CAS 918432-05-0C₉H₁₈O₂Si

Frequently asked questions

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What is the molar mass of C9H18O2Si?

The molar mass of C9H18O2Si is 186.33 g/mol, calculated from standard atomic weights for 9 carbon atoms, 18 hydrogen atoms, 2 oxygen atoms and 1 silicon atom. The monoisotopic mass is 186.1076 Da.

How many compounds have the formula C9H18O2Si?

CompoundList lists 43 compounds with the molecular formula C9H18O2Si, including 2-(Trimethylsilylmethyl)allyl acetate, Ethyl 2-(trimethylsilylmethyl)acrylate, Methyl 3-(trimethylsilyl)-4-pentenoate. 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 C9H18O2Si?

C9H18O2Si has a degree of unsaturation of 2. 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.