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Molecular formula

C18H11NO5

30 compounds have this formula on CompoundList.

Molar mass
321.29g/mol
Monoisotopic mass
321.0637Da
Atoms
35
Elements
4
Rings plus double bonds
14

The formula C18H11NO5 describes a molecule made of 18 carbon atoms, 11 hydrogen atoms, 1 nitrogen atom and 5 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 × 1867.29%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 113.45%
    1.008 × 11 = 11.088 g/mol
  • N Nitrogen × 14.36%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 524.90%
    15.999 × 5 = 79.995 g/mol
Look up another formula

Compounds with the formula C18H11NO5

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

Showing 1 to 30 of 30 compounds

2-(7-Hydroxy-2-methyl-4-oxochromen-3-yl)isoindole-1,3-dione chemical structure, C18H11NO5, CAS 87891-61-0
2-(7-Hydroxy-2-methyl-4-oxochromen-3-yl)isoindole-1,3-dione
CAS 87891-61-0C18H11NO5
2-(6-Methoxy-2-oxochromen-3-yl)isoindole-1,3-dione chemical structure, C18H11NO5, CAS 730243-81-9
2-(6-Methoxy-2-oxochromen-3-yl)isoindole-1,3-dione
CAS 730243-81-9C18H11NO5
(2E)-4-[(9,10-Dioxo-9,10-dihydroanthracen-2-yl)amino]-4-oxobut-2-enoic acid chemical structure, C18H11NO5, CAS 351516-91-1
(2E)-4-[(9,10-Dioxo-9,10-dihydroanthracen-2-yl)amino]-4-oxobut-2-enoic acid
CAS 351516-91-1C18H11NO5
Artabotrine chemical structure, C18H11NO5, CAS 166833-81-4
Artabotrine
CAS 166833-81-4C18H11NO5
1-Formylnaphthalen-2-yl 3-nitrobenzoate chemical structure, C18H11NO5, CAS 380196-74-7
1-Formylnaphthalen-2-yl 3-nitrobenzoate
CAS 380196-74-7C18H11NO5
Oxocompostelline chemical structure, C18H11NO5, CAS 86817-61-0
Oxocompostelline
CAS 86817-61-0C18H11NO5
(E)-3-(3-(4-Nitrophenyl)acryloyl)-2H-chromen-2-one chemical structure, C18H11NO5, CAS 140399-53-7
(E)-3-(3-(4-Nitrophenyl)acryloyl)-2H-chromen-2-one
CAS 140399-53-7C18H11NO5
2,6,7-Trihydroxy-9-(3-pyridyl)-3H-xanthen-3-one chemical structure, C18H11NO5, CAS 7638-44-0
2,6,7-Trihydroxy-9-(3-pyridyl)-3H-xanthen-3-one
CAS 7638-44-0C18H11NO5
2H-1-Benzopyran-2-one, 4-(2-nitrophenyl)-7-(2-propynyloxy)- chemical structure, C18H11NO5, CAS 67377-25-7
2H-1-Benzopyran-2-one, 4-(2-nitrophenyl)-7-(2-propynyloxy)-
CAS 67377-25-7C18H11NO5
3-(2-Benzoxazolyl)umbelliferyl acetate chemical structure, C18H11NO5, CAS 97004-78-9
3-(2-Benzoxazolyl)umbelliferyl acetate
CAS 97004-78-9C18H11NO5
(E)-3-(3-(3-Nitrophenyl)acryloyl)-2H-chromen-2-one chemical structure, C18H11NO5, CAS 140399-54-8
(E)-3-(3-(3-Nitrophenyl)acryloyl)-2H-chromen-2-one
CAS 140399-54-8C18H11NO5
Machigline chemical structure, C18H11NO5, CAS 87264-30-0
Machigline
CAS 87264-30-0C18H11NO5
3(2H)-Furanone, 2-(2-(4-nitrophenyl)-2-oxoethylidene)-5-phenyl- chemical structure, C18H11NO5, CAS 139266-51-6
3(2H)-Furanone, 2-(2-(4-nitrophenyl)-2-oxoethylidene)-5-phenyl-
CAS 139266-51-6C18H11NO5
5-[5-(4-Methoxyphenyl)-1,3-oxazol-2-yl]-2-benzofuran-1,3-dione chemical structure, C18H11NO5, CAS 66788-86-1
5-[5-(4-Methoxyphenyl)-1,3-oxazol-2-yl]-2-benzofuran-1,3-dione
CAS 66788-86-1C18H11NO5
4-(9,10-Dihydro-9,10-dioxo-2-anthracenyl)-3,5-morpholinedione chemical structure, C18H11NO5, CAS 143210-99-5
4-(9,10-Dihydro-9,10-dioxo-2-anthracenyl)-3,5-morpholinedione
CAS 143210-99-5C18H11NO5
1-Methyl-8-nitro-3-phenyl-4H-furo[3,4-c][1]benzopyran-4-one chemical structure, C18H11NO5, CAS 922503-25-1
1-Methyl-8-nitro-3-phenyl-4H-furo[3,4-c][1]benzopyran-4-one
CAS 922503-25-1C18H11NO5
6-(2,4-Dimethylphenyl)-1H-furo[3,4-f]isoindole-1,3,5,7(6H)-tetrone chemical structure, C18H11NO5, CAS 61369-76-4
6-(2,4-Dimethylphenyl)-1H-furo[3,4-f]isoindole-1,3,5,7(6H)-tetrone
CAS 61369-76-4C18H11NO5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(prop-2-yn-1-yloxy)benzoate chemical structure, C18H11NO5, CAS 2248393-30-6
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(prop-2-yn-1-yloxy)benzoate
CAS 2248393-30-6C18H11NO5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(1-benzofuran-2-yl)acetate chemical structure, C18H11NO5, CAS 2248389-87-7
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(1-benzofuran-2-yl)acetate
CAS 2248389-87-7C18H11NO5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 6-methyl-1-benzofuran-2-carboxylate chemical structure, C18H11NO5, CAS 2248320-58-1
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 6-methyl-1-benzofuran-2-carboxylate
CAS 2248320-58-1C18H11NO5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-methyl-1-benzofuran-2-carboxylate chemical structure, C18H11NO5, CAS 2248315-05-9
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-methyl-1-benzofuran-2-carboxylate
CAS 2248315-05-9C18H11NO5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 7-methyl-1-benzofuran-3-carboxylate chemical structure, C18H11NO5, CAS 2248324-58-3
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 7-methyl-1-benzofuran-3-carboxylate
CAS 2248324-58-3C18H11NO5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 7-methyl-1-benzofuran-2-carboxylate chemical structure, C18H11NO5, CAS 2248315-46-8
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 7-methyl-1-benzofuran-2-carboxylate
CAS 2248315-46-8C18H11NO5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methyl-1-benzofuran-2-carboxylate chemical structure, C18H11NO5, CAS 2248350-37-8
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methyl-1-benzofuran-2-carboxylate
CAS 2248350-37-8C18H11NO5

Frequently asked questions

What is the molar mass of C18H11NO5?

The molar mass of C18H11NO5 is 321.29 g/mol, calculated from standard atomic weights for 18 carbon atoms, 11 hydrogen atoms, 1 nitrogen atom and 5 oxygen atoms. The monoisotopic mass is 321.0637 Da.

How many compounds have the formula C18H11NO5?

CompoundList lists 30 compounds with the molecular formula C18H11NO5, including 2-(7-Hydroxy-2-methyl-4-oxochromen-3-yl)isoindole-1,3-dione, 2-(6-Methoxy-2-oxochromen-3-yl)isoindole-1,3-dione, (2E)-4-[(9,10-Dioxo-9,10-dihydroanthracen-2-yl)amino]-4-oxobut-2-enoic acid. 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 C18H11NO5?

C18H11NO5 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.