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Molecular formula

C21H38N2O7Si2

2 compounds have this formula on CompoundList.

Molar mass
486.71g/mol
Monoisotopic mass
486.2218Da
Atoms
70
Elements
5
Rings plus double bonds
6

The formula C21H38N2O7Si2 describes a molecule made of 21 carbon atoms, 38 hydrogen atoms, 2 nitrogen atoms, 7 oxygen atoms and 2 silicon atoms. 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 × 2151.82%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 387.87%
    1.008 × 38 = 38.304 g/mol
  • N Nitrogen × 25.76%
    14.007 × 2 = 28.014 g/mol
  • O Oxygen × 723.01%
    15.999 × 7 = 111.993 g/mol
  • Si Silicon × 211.54%
    28.085 × 2 = 56.170 g/mol
Look up another formula

Compounds with the formula C21H38N2O7Si2

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

Showing 1 to 2 of 2 compounds

3',5'-O-[1,1,3,3-Tetrakis(1-methylethyl)-1,3-disiloxanediyl]uridine chemical structure, C21H38N2O7Si2, CAS 69304-38-7
3',5'-O-[1,1,3,3-Tetrakis(1-methylethyl)-1,3-disiloxanediyl]uridine
CAS 69304-38-7C21H38N2O7Si2
5-[3,5-O-[1,1,3,3-Tetrakis(1-methylethyl)-1,3-disiloxanediyl]-|A-D-ribofuranosyl]-2,4(1H,3H)-pyrimidinedione chemical structure, C21H38N2O7Si2, CAS 80545-49-9
5-[3,5-O-[1,1,3,3-Tetrakis(1-methylethyl)-1,3-disiloxanediyl]-|A-D-ribofuranosyl]-2,4(1H,3H)-pyrimidinedione
CAS 80545-49-9C21H38N2O7Si2

Frequently asked questions

What is the molar mass of C21H38N2O7Si2?

The molar mass of C21H38N2O7Si2 is 486.71 g/mol, calculated from standard atomic weights for 21 carbon atoms, 38 hydrogen atoms, 2 nitrogen atoms, 7 oxygen atoms and 2 silicon atoms. The monoisotopic mass is 486.2218 Da.

How many compounds have the formula C21H38N2O7Si2?

CompoundList lists 2 compounds with the molecular formula C21H38N2O7Si2, including 3',5'-O-[1,1,3,3-Tetrakis(1-methylethyl)-1,3-disiloxanediyl]uridine, 5-[3,5-O-[1,1,3,3-Tetrakis(1-methylethyl)-1,3-disiloxanediyl]-|A-D-ribofuranosyl]-2,4(1H,3H)-pyrimidinedione. 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 C21H38N2O7Si2?

C21H38N2O7Si2 has a degree of unsaturation of 6. 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.