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Molecular formula

C21H18BrN3O3

19 compounds have this formula on CompoundList.

Molar mass
440.30g/mol
Monoisotopic mass
439.0532Da
Atoms
46
Elements
5
Rings plus double bonds
14

The formula C21H18BrN3O3 describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 1 bromine atom, 3 nitrogen atoms 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 × 2157.29%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 184.12%
    1.008 × 18 = 18.144 g/mol
  • Br Bromine × 118.15%
    79.904 × 1 = 79.904 g/mol
  • N Nitrogen × 39.54%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 310.90%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C21H18BrN3O3

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

Showing 1 to 19 of 19 compounds

2-(3-Bromophenyl)-3-(2-methoxyethyl)-10-methylpyrimido[4,5-b]quinoline-4,5(3H,10H)-dione chemical structure, C21H18BrN3O3, CAS 883956-98-7
2-(3-Bromophenyl)-3-(2-methoxyethyl)-10-methylpyrimido[4,5-b]quinoline-4,5(3H,10H)-dione
CAS 883956-98-7C21H18BrN3O3
N-{3-[N-(3-bromobenzoyl)ethanehydrazonoyl]phenyl}-5-methyl-2-furamide chemical structure, C21H18BrN3O3, CAS 495385-92-7
N-{3-[N-(3-bromobenzoyl)ethanehydrazonoyl]phenyl}-5-methyl-2-furamide
CAS 495385-92-7C21H18BrN3O3
3-[5-(4-Bromophenyl)-1,3,4-oxadiazol-2-yl]-7-(diethylamino)-2H-chromen-2-one chemical structure, C21H18BrN3O3, CAS 333773-11-8
3-[5-(4-Bromophenyl)-1,3,4-oxadiazol-2-yl]-7-(diethylamino)-2H-chromen-2-one
CAS 333773-11-8C21H18BrN3O3
(5-Bromonaphthalen-1-yl)[4-(4-nitrophenyl)piperazin-1-yl]methanone chemical structure, C21H18BrN3O3, CAS 425610-92-0
(5-Bromonaphthalen-1-yl)[4-(4-nitrophenyl)piperazin-1-yl]methanone
CAS 425610-92-0C21H18BrN3O3
2-{3-[2-(1-Bromoethyl)-4-oxo-3(4H)-quinazolinyl]propyl}-1H-isoindole-1,3(2H)-dione chemical structure, C21H18BrN3O3, CAS 866010-33-5
2-{3-[2-(1-Bromoethyl)-4-oxo-3(4H)-quinazolinyl]propyl}-1H-isoindole-1,3(2H)-dione
CAS 866010-33-5C21H18BrN3O3
5-Bromo-N-[(Z)-1-[4-[(2-methylbenzoyl)amino]phenyl]ethylideneamino]furan-2-carboxamide chemical structure, C21H18BrN3O3, CAS 445021-00-1
5-Bromo-N-[(Z)-1-[4-[(2-methylbenzoyl)amino]phenyl]ethylideneamino]furan-2-carboxamide
CAS 445021-00-1C21H18BrN3O3
N-{3-[N-(4-bromobenzoyl)ethanehydrazonoyl]phenyl}-2-methyl-3-furamide chemical structure, C21H18BrN3O3, CAS 445008-51-5
N-{3-[N-(4-bromobenzoyl)ethanehydrazonoyl]phenyl}-2-methyl-3-furamide
CAS 445008-51-5C21H18BrN3O3
Methyl 7-bromo-1-(quinolin-8-ylcarbamoyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate chemical structure, C21H18BrN3O3, CAS 1351582-02-9
Methyl 7-bromo-1-(quinolin-8-ylcarbamoyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate
CAS 1351582-02-9C21H18BrN3O3
5-(3-Bromophenyl)-1,3-dimethyl-6-(o-tolylamino)furo[2,3-d]pyrimidine-2,4(1H,3H)-dione chemical structure, C21H18BrN3O3, CAS 938032-41-8
5-(3-Bromophenyl)-1,3-dimethyl-6-(o-tolylamino)furo[2,3-d]pyrimidine-2,4(1H,3H)-dione
CAS 938032-41-8C21H18BrN3O3
5-(4-Bromophenyl)-1,3-dimethyl-6-(o-tolylamino)furo[2,3-d]pyrimidine-2,4(1H,3H)-dione chemical structure, C21H18BrN3O3, CAS 938026-10-9
5-(4-Bromophenyl)-1,3-dimethyl-6-(o-tolylamino)furo[2,3-d]pyrimidine-2,4(1H,3H)-dione
CAS 938026-10-9C21H18BrN3O3
6-(4-Bromophenyl)-2-[2-(6-methyl-2,3-dihydro-4H-1,4-benzoxazin-4-yl)-2-oxoethyl]pyridazin-3(2H)-one chemical structure, C21H18BrN3O3, CAS 1252843-77-8
6-(4-Bromophenyl)-2-[2-(6-methyl-2,3-dihydro-4H-1,4-benzoxazin-4-yl)-2-oxoethyl]pyridazin-3(2H)-one
CAS 1252843-77-8C21H18BrN3O3
N-(Benzo[d][1,3]dioxol-5-yl)-1-(4-bromophenyl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxamide chemical structure, C21H18BrN3O3, CAS 899960-08-8
N-(Benzo[d][1,3]dioxol-5-yl)-1-(4-bromophenyl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxamide
CAS 899960-08-8C21H18BrN3O3
N-(3-Acetamidophenyl)-1-(4-bromobenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamide chemical structure, C21H18BrN3O3, CAS 922905-51-9
N-(3-Acetamidophenyl)-1-(4-bromobenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamide
CAS 922905-51-9C21H18BrN3O3
N-(4-Acetamidophenyl)-1-(4-bromobenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamide chemical structure, C21H18BrN3O3, CAS 922885-49-2
N-(4-Acetamidophenyl)-1-(4-bromobenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamide
CAS 922885-49-2C21H18BrN3O3
6-Bromo-N-[1-(4-methoxybenzyl)-1H-pyrazol-5-yl]-3-methyl-1-benzofuran-2-carboxamide chemical structure, C21H18BrN3O3, CAS 1171626-27-9
6-Bromo-N-[1-(4-methoxybenzyl)-1H-pyrazol-5-yl]-3-methyl-1-benzofuran-2-carboxamide
CAS 1171626-27-9C21H18BrN3O3
5-Bromo-2-{[1-(2-phenoxybenzoyl)pyrrolidin-3-yl]oxy}pyrimidine chemical structure, C21H18BrN3O3, CAS 2097920-00-6
5-Bromo-2-{[1-(2-phenoxybenzoyl)pyrrolidin-3-yl]oxy}pyrimidine
CAS 2097920-00-6C21H18BrN3O3
(6-(6-(4-Methoxybenzyloxy)-4-bromo-1H-indazol-1-yl)pyridin-2-yl)methanol chemical structure, C21H18BrN3O3, CAS 1864773-64-7
(6-(6-(4-Methoxybenzyloxy)-4-bromo-1H-indazol-1-yl)pyridin-2-yl)methanol
CAS 1864773-64-7C21H18BrN3O3
(6-(4-(4-Methoxybenzyloxy)-6-bromo-1H-indazol-1-yl)pyridin-2-yl)methanol chemical structure, C21H18BrN3O3, CAS 1864773-53-4
(6-(4-(4-Methoxybenzyloxy)-6-bromo-1H-indazol-1-yl)pyridin-2-yl)methanol
CAS 1864773-53-4C21H18BrN3O3
(9H-Fluoren-9-yl)methyl 3-[5-(bromomethyl)-1,2,4-oxadiazol-3-yl]azetidine-1-carboxylate chemical structure, C21H18BrN3O3, CAS 2172603-64-2
(9H-Fluoren-9-yl)methyl 3-[5-(bromomethyl)-1,2,4-oxadiazol-3-yl]azetidine-1-carboxylate
CAS 2172603-64-2C21H18BrN3O3

Frequently asked questions

What is the molar mass of C21H18BrN3O3?

The molar mass of C21H18BrN3O3 is 440.30 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 1 bromine atom, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 439.0532 Da.

How many compounds have the formula C21H18BrN3O3?

CompoundList lists 19 compounds with the molecular formula C21H18BrN3O3, including 2-(3-Bromophenyl)-3-(2-methoxyethyl)-10-methylpyrimido[4,5-b]quinoline-4,5(3H,10H)-dione, N-{3-[N-(3-bromobenzoyl)ethanehydrazonoyl]phenyl}-5-methyl-2-furamide, 3-[5-(4-Bromophenyl)-1,3,4-oxadiazol-2-yl]-7-(diethylamino)-2H-chromen-2-one. 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 C21H18BrN3O3?

C21H18BrN3O3 has a degree of unsaturation of 14. 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.