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Molecular formula

C21H23BO3

3 compounds have this formula on CompoundList.

Molar mass
334.22g/mol
Monoisotopic mass
334.1740Da
Atoms
48
Elements
4

The formula C21H23BO3 describes a molecule made of 21 carbon atoms, 23 hydrogen atoms, 1 boron atom and 3 oxygen 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 × 2175.47%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 236.94%
    1.008 × 23 = 23.184 g/mol
  • B Boron × 13.23%
    10.81 × 1 = 10.810 g/mol
  • O Oxygen × 314.36%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C21H23BO3

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

Showing 1 to 3 of 3 compounds

2-(4-(4-Methoxy-phenylethynyl)-phenyl)-4,4,5,5-tetramethyl-(1,3,2)dioxaborolane chemical structure, C21H23BO3, CAS 1190376-24-9
2-(4-(4-Methoxy-phenylethynyl)-phenyl)-4,4,5,5-tetramethyl-(1,3,2)dioxaborolane
CAS 1190376-24-9C21H23BO3
2-(3-Methoxy-5-(phenylethynyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane chemical structure, C21H23BO3, CAS 942069-81-0
2-(3-Methoxy-5-(phenylethynyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
CAS 942069-81-0C21H23BO3
2-(4-(3-Phenylprop-2-ynyloxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane chemical structure, C21H23BO3, CAS 1813554-65-2
2-(4-(3-Phenylprop-2-ynyloxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
CAS 1813554-65-2C21H23BO3

Frequently asked questions

What is the molar mass of C21H23BO3?

The molar mass of C21H23BO3 is 334.22 g/mol, calculated from standard atomic weights for 21 carbon atoms, 23 hydrogen atoms, 1 boron atom and 3 oxygen atoms. The monoisotopic mass is 334.1740 Da.

How many compounds have the formula C21H23BO3?

CompoundList lists 3 compounds with the molecular formula C21H23BO3, including 2-(4-(4-Methoxy-phenylethynyl)-phenyl)-4,4,5,5-tetramethyl-(1,3,2)dioxaborolane, 2-(3-Methoxy-5-(phenylethynyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 2-(4-(3-Phenylprop-2-ynyloxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.