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Molecular formula

C21H25Br

5 compounds have this formula on CompoundList.

Molar mass
357.33g/mol
Monoisotopic mass
356.1140Da
Atoms
47
Elements
3
Rings plus double bonds
9

The formula C21H25Br describes a molecule made of 21 carbon atoms, 25 hydrogen atoms and 1 bromine 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 × 2170.59%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 257.05%
    1.008 × 25 = 25.200 g/mol
  • Br Bromine × 122.36%
    79.904 × 1 = 79.904 g/mol
Look up another formula

Compounds with the formula C21H25Br

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

Showing 1 to 5 of 5 compounds

2-Bromo-9,9-dibutylfluorene chemical structure, C21H25Br, CAS 88223-35-2
2-Bromo-9,9-dibutylfluorene
CAS 88223-35-2C21H25Br
trans-4-broMo-4'-(4-propylcyclohexyl)biphenyl chemical structure, C21H25Br, CAS 101532-36-9
trans-4-broMo-4'-(4-propylcyclohexyl)biphenyl
CAS 101532-36-9C21H25Br
2-Bromo-7-octyl-9H-fluorene chemical structure, C21H25Br, CAS 99012-38-1
2-Bromo-7-octyl-9H-fluorene
CAS 99012-38-1C21H25Br
1-Bromo-4-[2-(4-heptylphenyl)ethenyl]benzene chemical structure, C21H25Br, CAS 62856-37-5
1-Bromo-4-[2-(4-heptylphenyl)ethenyl]benzene
CAS 62856-37-5C21H25Br
9-Bromo-2,7-di-tert-butyl-9H-fluorene chemical structure, C21H25Br, CAS 1242278-88-1
9-Bromo-2,7-di-tert-butyl-9H-fluorene
CAS 1242278-88-1C21H25Br

Frequently asked questions

What is the molar mass of C21H25Br?

The molar mass of C21H25Br is 357.33 g/mol, calculated from standard atomic weights for 21 carbon atoms, 25 hydrogen atoms and 1 bromine atom. The monoisotopic mass is 356.1140 Da.

How many compounds have the formula C21H25Br?

CompoundList lists 5 compounds with the molecular formula C21H25Br, including 2-Bromo-9,9-dibutylfluorene, trans-4-broMo-4'-(4-propylcyclohexyl)biphenyl, 2-Bromo-7-octyl-9H-fluorene. 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 C21H25Br?

C21H25Br has a degree of unsaturation of 9. 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.