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Molecular formula

C20H17Br

9 compounds have this formula on CompoundList.

Molar mass
337.26g/mol
Monoisotopic mass
336.0514Da
Atoms
38
Elements
3
Rings plus double bonds
12

The formula C20H17Br describes a molecule made of 20 carbon atoms, 17 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 × 2071.23%
    12.011 × 20 = 240.220 g/mol
  • H Hydrogen × 175.08%
    1.008 × 17 = 17.136 g/mol
  • Br Bromine × 123.69%
    79.904 × 1 = 79.904 g/mol
Look up another formula

Compounds with the formula C20H17Br

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

Showing 1 to 9 of 9 compounds

2'-Bromo-4,4''-dimethyl-(1,1',3',1'')terphenyl chemical structure, C20H17Br, CAS 154488-08-1
2'-Bromo-4,4''-dimethyl-(1,1',3',1'')terphenyl
CAS 154488-08-1C20H17Br
2-Bromo-7-(1,1-dimethylethyl)pyrene chemical structure, C20H17Br, CAS 78751-80-1
2-Bromo-7-(1,1-dimethylethyl)pyrene
CAS 78751-80-1C20H17Br
1-Bromo-7-(tert-butyl)pyrene chemical structure, C20H17Br, CAS 78751-74-3
1-Bromo-7-(tert-butyl)pyrene
CAS 78751-74-3C20H17Br
4-(1-Bromo-2-phenylethyl)-1,1'-biphenyl chemical structure, C20H17Br, CAS 56181-61-4
4-(1-Bromo-2-phenylethyl)-1,1'-biphenyl
CAS 56181-61-4C20H17Br
1-Bromo-1,2,2-triphenylethane chemical structure, C20H17Br, CAS 18495-77-7
1-Bromo-1,2,2-triphenylethane
CAS 18495-77-7C20H17Br
Pyrene, 1-(4-bromobutyl)- chemical structure, C20H17Br, CAS 117846-05-6
Pyrene, 1-(4-bromobutyl)-
CAS 117846-05-6C20H17Br
5'-Bromo-4,4''-dimethyl-1,1':3',1''-terphenyl chemical structure, C20H17Br, CAS 918964-52-0
5'-Bromo-4,4''-dimethyl-1,1':3',1''-terphenyl
CAS 918964-52-0C20H17Br
1,1'-[2-(3-Bromophenyl)ethane-1,1-diyl]dibenzene chemical structure, C20H17Br, CAS 88382-67-6
1,1'-[2-(3-Bromophenyl)ethane-1,1-diyl]dibenzene
CAS 88382-67-6C20H17Br
2'-Bromo-4,4''-dimethyl-1,1':4',1''-terphenyl chemical structure, C20H17Br, CAS 2199508-27-3
2'-Bromo-4,4''-dimethyl-1,1':4',1''-terphenyl
CAS 2199508-27-3C20H17Br

Frequently asked questions

What is the molar mass of C20H17Br?

The molar mass of C20H17Br is 337.26 g/mol, calculated from standard atomic weights for 20 carbon atoms, 17 hydrogen atoms and 1 bromine atom. The monoisotopic mass is 336.0514 Da.

How many compounds have the formula C20H17Br?

CompoundList lists 9 compounds with the molecular formula C20H17Br, including 2'-Bromo-4,4''-dimethyl-(1,1',3',1'')terphenyl, 2-Bromo-7-(1,1-dimethylethyl)pyrene, 1-Bromo-7-(tert-butyl)pyrene. 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 C20H17Br?

C20H17Br has a degree of unsaturation of 12. 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.