Molecular formula
C18H16N2O4
354 compounds have this formula on CompoundList.
- Molar mass
- 324.34g/mol
- Monoisotopic mass
- 324.1110Da
- Atoms
- 40
- Elements
- 4
- Rings plus double bonds
- 12
The formula C18H16N2O4 describes a molecule made of 18 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 4 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 × 1866.66%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 164.97%1.008 × 16 = 16.128 g/mol
- N Nitrogen × 28.64%14.007 × 2 = 28.014 g/mol
- O Oxygen × 419.73%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C18H16N2O4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 354 compounds
![N-(2-Furylmethyl)-7-hydroxy-5-oxo-2,3-dihydro-1H,5H-pyrido[3,2,1-ij]quinoline-6-carboxamide chemical structure, C18H16N2O4, CAS 376377-64-9](/s/XDCAKOZUCQKAIB-UHFFFAOYSA-N.svg)
N-(2-Furylmethyl)-7-hydroxy-5-oxo-2,3-dihydro-1H,5H-pyrido[3,2,1-ij]quinoline-6-carboxamide
CAS 376377-64-9C18H16N2O4
3-(3,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid
CAS 379223-64-0C18H16N2O4
4-(3,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazole-3-carboxylic acid
CAS 956705-43-4C18H16N2O4
3-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-(2-methoxyphenyl)propanamide
CAS 303122-32-9C18H16N2O4
2-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-N-(2-methoxy-phenyl)-propionamide
CAS 140244-43-5C18H16N2O4
![5-Methyl-N-[2-[(5-methylfuran-2-carbonyl)amino]phenyl]furan-2-carboxamide chemical structure, C18H16N2O4, CAS 353765-40-9](/s/ZUEFBUFTMAJSMS-UHFFFAOYSA-N.svg)
5-Methyl-N-[2-[(5-methylfuran-2-carbonyl)amino]phenyl]furan-2-carboxamide
CAS 353765-40-9C18H16N2O4
2-Ethyl-N-(4-hydroxy-2-methylphenyl)-1,3-dioxoisoindole-5-carboxamide
CAS 690679-78-8C18H16N2O4
2-Amino-4-(3,4-dimethoxyphenyl)-7-hydroxy-4H-chromene-3-carbonitrile
CAS 312266-56-1C18H16N2O4
3-Acetyl-4-hydroxy-2-(4-methoxyphenyl)-1-pyridin-2-yl-2H-pyrrol-5-one
CAS 332022-59-0C18H16N2O4
2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-(4-ethoxyphenyl)acetamide
CAS 313267-19-5C18H16N2O4
8-Quinolyl N-(2,5-dimethoxyphenyl)carbamate
CAS 99541-02-3C18H16N2O4
![4-[4-(2H-1,3-Benzodioxol-5-yl)-1H-pyrazol-5-yl]-6-ethylbenzene-1,3-diol chemical structure, C18H16N2O4, CAS 171009-00-0](/s/JHMXKGMRRKUZPH-UHFFFAOYSA-N.svg)
4-[4-(2H-1,3-Benzodioxol-5-yl)-1H-pyrazol-5-yl]-6-ethylbenzene-1,3-diol
CAS 171009-00-0C18H16N2O4
(E)-N-(4-Acetamidophenyl)-3-(1,3-benzodioxol-5-yl)prop-2-enamide
CAS 86181-72-8C18H16N2O4
1H-Pyrrole-2,5-dione, 1,1'-(1,3-phenylenebis(methylene))bis(3-methyl-
CAS 119462-56-5C18H16N2O4
3-(1,3-Benzodioxol-5-ylamino)-1-(2-methylphenyl)-2,5-pyrrolidinedione
CAS 1008268-26-5C18H16N2O4
8-Quinolinyl N-(2,4-dimethoxyphenyl)carbamate
CAS 59741-06-9C18H16N2O4
N-(3-Acetyl-phenyl)-3-(2-oxo-benzooxazol-3-yl)-propionamide
CAS 851989-23-6C18H16N2O4
![[2-(Ethylamino)-2-oxoethyl] 2-(furan-2-yl)quinoline-4-carboxylate chemical structure, C18H16N2O4, CAS 784196-98-1](/s/VGSXOJZTGNGMSP-UHFFFAOYSA-N.svg)
[2-(Ethylamino)-2-oxoethyl] 2-(furan-2-yl)quinoline-4-carboxylate
CAS 784196-98-1C18H16N2O4
2-(4-Methyl-2-oxochromen-7-yl)oxy-N-(pyridin-3-ylmethyl)acetamide
CAS 461028-16-0C18H16N2O4
![2-Amino-4-(4-ethoxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile chemical structure, C18H16N2O4, CAS 315246-05-0](/s/XJHRHFFURBXLQZ-UHFFFAOYSA-N.svg)
2-Amino-4-(4-ethoxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile
CAS 315246-05-0C18H16N2O4
Ethyl 4-(phthalimidomethylamino)benzoate
CAS 16320-15-3C18H16N2O4
3-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-N-(4-methoxy-phenyl)-propionamide
CAS 57500-76-2C18H16N2O4
1-(4-Nitrophenyl)-3-(1-phenylethyl)pyrrolidine-2,5-dione
CAS 312718-71-1C18H16N2O4
![3-[(3-Methylphenyl)methyl]-1-(4-nitrophenyl)pyrrolidine-2,5-dione chemical structure, C18H16N2O4, CAS 332039-96-0](/s/MAOSYJABPKCGCG-UHFFFAOYSA-N.svg)
3-[(3-Methylphenyl)methyl]-1-(4-nitrophenyl)pyrrolidine-2,5-dione
CAS 332039-96-0C18H16N2O4
- 3-(2,5-Dimethoxyphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid956386-16-6C18H16N2O4
- Terephthalamide, N,N'-difurfuryl-61190-73-6C18H16N2O4
- N,N'-(1,3-Phenylenebis(methylene))bis(furan-2-carboxamide)415694-42-7C18H16N2O4
- 2-(1,3-Dioxoisoindol-2-yl)-N-[(4-methoxyphenyl)methyl]acetamide349088-87-5C18H16N2O4
- 3-(4-Methoxy-phenyl)-2-phenyl-tetrahydro-pyrrolo[3,4-d]isoxazole-4,6-dione1005262-43-0C18H16N2O4
- 3-[(4-Ethoxybenzoyl)amino]-1-benzofuran-2-carboxamide477511-36-7C18H16N2O4
- MD 77022270133-35-6C18H16N2O4
- N-(4-Acetamido-2-methoxyphenyl)-1-benzofuran-2-carboxamide425624-20-0C18H16N2O4
- Methyl [4-(3-methyl-4-oxo-3,4-dihydro-1-phthalazinyl)phenoxy]acetate701230-17-3C18H16N2O4
- 2-(2,4-Dimethylphenoxy)-N-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)acetamide650630-62-9C18H16N2O4
- N-(3,4-Dimethoxyphenyl)-5-phenyl-1,2-oxazole-3-carboxamide725697-68-7C18H16N2O4
- N-(1,3-Benzodioxol-5-yl)-5-oxo-1-phenylpyrrolidine-3-carboxamide341007-26-9C18H16N2O4
- 2-Butyne-1,4-diol dicarbanilate21840-67-5C18H16N2O4
- N-(4-Acetylphenyl)-3-(2-oxo-1,3-benzoxazol-3-yl)propanamide851989-22-5C18H16N2O4
- 2-Acetylamino-3-benzo[1,3]dioxol-5-yl-N-phenyl-acrylamide1164520-10-8C18H16N2O4
- 4-{[2-Methyl-3-oxo-3,4-dihydro-1(2H)-quinoxalinyl]carbonyl}phenyl acetate1009336-03-1C18H16N2O4
- Ethyl 2-[2-(dimethylamino)vinyl]-5-oxo-5H-chromeno[2,3-b]pyridine-3-carboxylate478260-54-7C18H16N2O4
- N'-[(1E,2E)-3-(1,3-Benzodioxol-5-yl)prop-2-en-1-ylidene]-2-hydroxy-2-phenylacetohydrazide328571-83-1C18H16N2O4
- Diethyl 3,3'-(1,4-phenylene)bis(2-cyanoacrylate)47375-13-3C18H16N2O4
- 5-Methoxy-2-[5-(3-methoxyphenoxy)pyrimidin-4-yl]phenol877798-25-9C18H16N2O4
- 2-[({4-[(Cyclopropylcarbonyl)amino]phenyl}carbonyl)amino]benzoic acid666711-16-6C18H16N2O4
- N-{4-[(1,3-Dioxo-2,3-dihydro-1H-isoindol-5-yl)oxy]phenyl}-2-methylpropanamide500263-62-7C18H16N2O4
- N-[3-(1,3-Dioxoisoindol-5-yl)oxyphenyl]butanamide701259-81-6C18H16N2O4
- N-(2-Furylmethyl)-4-(3-methoxybenzoyl)-1H-pyrrole-2-carboxamide478078-79-4C18H16N2O4
- 1-Benzyl-3-(2-phenoxyethyl)imidazolidine-2,4,5-trione341967-16-6C18H16N2O4
- N-(2-Furylmethyl)-4-(4-methoxybenzoyl)-1H-pyrrole-2-carboxamide478259-29-9C18H16N2O4
- 3-[2-(2,4-Dimethylanilino)-1-nitrovinyl]-2-benzofuran-1(3H)-one320420-47-1C18H16N2O4
- 2-((3,4-Dimethyl-2-oxo-2H-chromen-7-yl)oxy)-N-(pyridin-3-yl)acetamide903185-82-0C18H16N2O4
- 8-[3-(2-Nitrophenoxy)propoxy]quinoline864714-88-5C18H16N2O4
- 3-[[2-(4-Methoxyphenyl)acetyl]amino]-1-benzofuran-2-carboxamide898354-81-9C18H16N2O4
- 3-[2-(3,4-Dimethoxyphenyl)-2-oxoethyl]quinazolin-4-one875742-35-1C18H16N2O4
- 3-[2-(2,5-Dimethoxyphenyl)-2-oxoethyl]quinazolin-4-one924073-95-0C18H16N2O4
- 5-Benzyloxybenzylbarbituric acid138660-08-9C18H16N2O4
- 2-[(2-Phenyl-1,3-dioxolan-4-yl)methyl]-2,3-dihydrophthalazine-1,4-dione374096-90-9C18H16N2O4
- 2-Amino-5-[(1-Methoxy-2-Methylindolizin-3-Yl)carbonyl]benzoic Acid848463-13-8C18H16N2O4
- 2-(2,3-Dioxo-2,3-dihydro-1H-indol-1-yl)-N-(2-phenoxyethyl)acetamide299919-84-9C18H16N2O4
- 2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-(2-ethoxyphenyl)acetamide335207-97-1C18H16N2O4
- 4-Hydroxy-N-(2-methoxyphenyl)-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxamide319489-54-8C18H16N2O4
- 2-Methyl-N-[3-[(2-methylfuran-3-carbonyl)amino]phenyl]furan-3-carboxamide438464-16-5C18H16N2O4
- (E)-2-(3-(3,4-Dimethoxystyryl)-1,2,4-oxadiazol-5-yl)phenol831234-83-4C18H16N2O4
- 3-[1-(1,3-Benzodioxol-5-yl)-2-nitroethyl]-2-methyl-1H-indole305372-79-6C18H16N2O4
- 2-(2-Nitrophenyl)-8-(propan-2-ylidene)-3a,4,7,7a-tetrahydro-1H-4,7-methanoisoindole-1,3(2H)-dione5627-31-6C18H16N2O4
- N-[4-(1,3-Dioxoisoindol-5-yl)oxyphenyl]butanamide690981-11-4C18H16N2O4
- 4-{3-[(4-Methylphenyl)amino]-2,5-dioxopyrrolidin-1-yl}benzoic acid474377-69-0C18H16N2O4
- (2Z)-8-Methoxy-2-[(2-methoxyphenyl)imino]-2H-chromene-3-carboxamide389075-23-4C18H16N2O4
- 3-(1,3-Benzodioxol-5-ylmethylamino)-1-phenylpyrrolidine-2,5-dione339989-48-9C18H16N2O4
- 2-(4-Methyl-3-nitrophenyl)hexahydro-4,6-ethenocyclopropa[f]isoindole-1,3(2H,3aH)-dione354812-61-6C18H16N2O4
- N-[(1,3-Dioxoisoindol-2-yl)methyl]-N-(4-methoxyphenyl)acetamide300668-73-9C18H16N2O4
- 3-(2-Methyl-4-oxo-5,6-dihydro-2H-2,6-methano-1,3,5-benzoxadiazocin-3(4H)-yl)benzoic acid899213-29-7C18H16N2O4
- 6-Methoxy-2-(4-methoxy-phenylimino)-2H-chromene-3-carboxylic acid amide325804-91-9C18H16N2O4
- 2-(2,5-Dioxopyrrolidin-1-yl)oxy-N,N-diphenylacetamide838851-96-0C18H16N2O4
- 2-Amino-4-(1,3-benzodioxol-5-yl)-7-methyl-5-oxo-4,6,7,8-tetrahydrochromene-3-carbonitrile1024209-91-3C18H16N2O4
- Ethyl 4-(2-furylcarbonylamino)-2-methylquinoline-6-carboxylate953854-67-6C18H16N2O4
- N-(2,4-Dimethoxyphenyl)-4-hydroxyquinoline-3-carboxamide946203-92-5C18H16N2O4
- Ethyl 4-Hydroxy-2-oxo-7-(phenylmethyl)-1,2-dihydro-1,5-naphthyridine-3-carboxylate675614-20-7C18H16N2O4
- Ethyl 4-[(3-amino-2-oxo-2H-chromen-4-yl)amino]benzoate313231-50-4C18H16N2O4
- 4-Ethoxy-N-(2-methyl-1,3-dioxoisoindolin-5-yl)benzamide315240-71-2C18H16N2O4
- 1-Ethyl-4-hydroxy-N-(3-hydroxyphenyl)-2-oxo-1,2-dihydroquinoline-3-carboxamide5534-62-3C18H16N2O4
- 4-(4-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-5-methyl-1H-pyrazol-3-yl)benzene-1,3-diol171009-06-6C18H16N2O4
- 1-Ethyl-4-hydroxy-N-(2-hydroxyphenyl)-2-oxo-1,2-dihydroquinoline-3-carboxamide300590-88-9C18H16N2O4
- 5-(Hydroxymethyl)-8-methyl-N-(4-methylphenyl)-2-oxopyrano[2,3-c]pyridine-3-carboxamide443116-98-1C18H16N2O4
- 3,5,6-Trimethyl-N-(2-nitrophenyl)-1-benzofuran-2-carboxamide622348-94-1C18H16N2O4
- N-(4-(2-Oxopyrrolidin-1-yl)phenyl)benzo[d][1,3]dioxole-5-carboxamide941889-00-5C18H16N2O4
- 2-(2-Methoxyethyl)-1,3-dioxo-N-phenylisoindole-5-carboxamide839689-82-6C18H16N2O4
- 2-(2,3-Dioxo-2,3-dihydro-1H-indol-1-yl)-N-(4-ethoxyphenyl)acetamide302968-22-5C18H16N2O4
- 6-Methoxy-2-(2-methoxyphenyl)iminochromene-3-carboxamide389075-21-2C18H16N2O4
- 7-{[2-(4-Hydroxy-3-methoxyphenyl)ethyl]amino}quinoline-5,8-dione383907-44-6C18H16N2O4
- 5-[(2-Methoxynaphthalen-1-yl)methylidene]-1,3-dimethyl-1,3-diazinane-2,4,6-trione311328-24-2C18H16N2O4
- N-(1,3-Dioxoisoindol-5-yl)-2-(4-ethoxyphenyl)acetamide923371-99-7C18H16N2O4
- N-(1-Ethyl-2-oxoindolin-5-yl)benzo[d][1,3]dioxole-5-carboxamide921773-79-7C18H16N2O4
- Niometacin16426-83-8C18H16N2O4
- Methyl 2-benzamido-3-oxo-1,4-dihydroisoquinoline-1-carboxylate63500-02-7C18H16N2O4
- N-(4-Methoxyphenyl)-2,4-dioxo-1-phenylpyrrolidine-3-carboxamide823823-49-0C18H16N2O4
- (S)-2-((E)-3-Furan-2-yl-acryloylamino)-3-(1H-indol-3-yl)-propionic acid261179-11-7C18H16N2O4
- 2-(7-Methoxy-2-oxo-2H-chromen-4-yl)-N-(pyridin-4-ylmethyl)acetamide919850-12-7C18H16N2O4
- 3-(4-((5-Phenyl-1,2,4-oxadiazol-3-yl)methoxy)phenyl)propanoic acid823810-49-7C18H16N2O4
Frequently asked questions
What is the molar mass of C18H16N2O4?
The molar mass of C18H16N2O4 is 324.34 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 324.1110 Da.
How many compounds have the formula C18H16N2O4?
CompoundList lists 354 compounds with the molecular formula C18H16N2O4, including N-(2-Furylmethyl)-7-hydroxy-5-oxo-2,3-dihydro-1H,5H-pyrido[3,2,1-ij]quinoline-6-carboxamide, 3-(3,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid, 4-(3,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazole-3-carboxylic 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 C18H16N2O4?
C18H16N2O4 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.