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 101 to 200 of 354 compounds
3-(4-((3-Phenyl-1,2,4-oxadiazol-5-yl)methoxy)phenyl)propanoic acid
CAS 1795528-47-0C18H16N2O4
3-Quinolinecarboxamide, 1,2-dihydro-4-hydroxy-N-(4-methoxyphenyl)-1-methyl-2-oxo-
CAS 75483-06-6C18H16N2O4
4-Hydroxy-N-(3-methoxyphenyl)-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxamide
CAS 303093-34-7C18H16N2O4
![4-{[(5-Oxo-1-phenylpyrrolidin-3-yl)carbonyl]amino}benzoic acid chemical structure, C18H16N2O4, CAS 401822-11-5](/s/MCLYUBBOZKFRFQ-UHFFFAOYSA-N.svg)
4-{[(5-Oxo-1-phenylpyrrolidin-3-yl)carbonyl]amino}benzoic acid
CAS 401822-11-5C18H16N2O4
(S)-2-(((Benzyloxy)carbonyl)amino)-3-(4-cyanophenyl)propanoic acid
CAS 131669-07-3C18H16N2O4
![5-{[2-(Benzyloxy)phenyl]methyl}-1,3-diazinane-2,4,6-trione chemical structure, C18H16N2O4, CAS 242473-64-9](/s/OTOBSWXRTLRDRD-UHFFFAOYSA-N.svg)
5-{[2-(Benzyloxy)phenyl]methyl}-1,3-diazinane-2,4,6-trione
CAS 242473-64-9C18H16N2O4
2-(1,3-Dioxoisoindolin-2-yl)-N-(4-methoxyphenyl)propanamide
CAS 140244-42-4C18H16N2O4
3-Nitro-5-(6,7,8,9-tetrahydrodibenzofuran-2-yloxy)aniline
CAS 5671-16-9C18H16N2O4
![2-Amino-4-(2,5-dimethylphenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile chemical structure, C18H16N2O4, CAS 664999-59-1](/s/YYASEJLMBGRAMO-UHFFFAOYSA-N.svg)
2-Amino-4-(2,5-dimethylphenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile
CAS 664999-59-1C18H16N2O4
N-(3,4-Dimethoxyphenyl)-4-hydroxyquinoline-3-carboxamide
CAS 86540-25-2C18H16N2O4
1-Imidazolidinecarboxylic acid, 2,5-dioxo-4,4-diphenyl-, ethyl ester
CAS 1097-57-0C18H16N2O4
![N-{3-[2-(3-Hydroxy-2-oxo-2,3-dihydro-1H-indol-3-yl)acetyl]phenyl}acetamide chemical structure, C18H16N2O4, CAS 341020-65-3](/s/UXMALSVBWSOHFK-UHFFFAOYSA-N.svg)
N-{3-[2-(3-Hydroxy-2-oxo-2,3-dihydro-1H-indol-3-yl)acetyl]phenyl}acetamide
CAS 341020-65-3C18H16N2O4
5-Methoxy-alpha-oxo-6-(phenylmethoxy)-1H-indole-3-acetamide
CAS 4790-22-1C18H16N2O4
![4-(2-Methyl-5-nitrophenyl)-3,5-dioxo-4-azatricyclo[5.2.1.0~2,6~]dec-8-ene-10-spiro-1'-cyclopropane chemical structure, C18H16N2O4, CAS 329314-53-6](/s/XTOIUIXMPLPZLM-UHFFFAOYSA-N.svg)
4-(2-Methyl-5-nitrophenyl)-3,5-dioxo-4-azatricyclo[5.2.1.0~2,6~]dec-8-ene-10-spiro-1'-cyclopropane
CAS 329314-53-6C18H16N2O4
N-(3,4-Dimethoxyphenyl)-2-(1H-indol-3-yl)-2-oxoacetamide
CAS 852367-82-9C18H16N2O4
![N-[4-(Acetylamino)phenyl]-1-oxo-3,4-dihydro-1H-isochromene-3-carboxamide chemical structure, C18H16N2O4, CAS 786674-55-3](/s/PGFAMSCKRYGMAY-UHFFFAOYSA-N.svg)
N-[4-(Acetylamino)phenyl]-1-oxo-3,4-dihydro-1H-isochromene-3-carboxamide
CAS 786674-55-3C18H16N2O4
![Methyl 4-[[[(5-hydroxy-1H-indol-2-yl)carbonyl]amino]methyl]benzoate chemical structure, C18H16N2O4, CAS 265311-88-4](/s/JXIGIOAIZLJRQR-UHFFFAOYSA-N.svg)
Methyl 4-[[[(5-hydroxy-1H-indol-2-yl)carbonyl]amino]methyl]benzoate
CAS 265311-88-4C18H16N2O4
2-Anthracenecarboxylic acid, 1,4-diamino-9,10-dihydro-9,10-dioxo-, 1-methylethyl ester
CAS 70917-34-9C18H16N2O4
N,N'-Bis(piperonylidene)ethylenediamine
CAS 101732-00-7C18H16N2O4
Dimethyl 9,10-dihydro-9,10-biiminoanthracene-11,12-dicarboxylate
CAS 17002-07-2C18H16N2O4
3-(4-Methoxyanilino)-1-(4-methoxyphenyl)-2,5-dihydro-1H-pyrrole-2,5-dione
CAS 24978-24-3C18H16N2O4
![N-[4-[2-(4-Acetamidophenyl)-2-oxoacetyl]phenyl]acetamide chemical structure, C18H16N2O4, CAS 21501-14-4](/s/KZECPWWDGWIPTL-UHFFFAOYSA-N.svg)
N-[4-[2-(4-Acetamidophenyl)-2-oxoacetyl]phenyl]acetamide
CAS 21501-14-4C18H16N2O4
![5-Methyl-N-[3-[(5-methylfuran-2-carbonyl)amino]phenyl]furan-2-carboxamide chemical structure, C18H16N2O4, CAS 626203-21-2](/s/RUFPAIKZWDBCPN-UHFFFAOYSA-N.svg)
5-Methyl-N-[3-[(5-methylfuran-2-carbonyl)amino]phenyl]furan-2-carboxamide
CAS 626203-21-2C18H16N2O4
3-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-(2-hydroxy-5-methylphenyl)propanamide
CAS 832122-46-0C18H16N2O4
- 2-Amino-4-(2-ethoxyphenyl)-7-methyl-5-oxo-4H-pyrano[3,2-c]pyran-3-carbonitrile331856-87-2C18H16N2O4
- N-[4-[2-(3-Hydroxy-2-oxo-1H-indol-3-yl)acetyl]phenyl]acetamide344898-29-9C18H16N2O4
- 2-[(E)-1-(2,4-Dimethoxyphenyl)ethylideneamino]isoindole-1,3-dione5664-00-6C18H16N2O4
- 8-Ethoxy-2-oxo-N-(pyridin-4-ylmethyl)chromene-3-carboxamide886126-34-7C18H16N2O4
- 2-(3,5-Dioxo-1,4-benzoxazepin-4-yl)-N-(2-methylphenyl)acetamide903854-59-1C18H16N2O4
- 2-(6-(Methoxycarbonyl)-2-(p-tolyl)imidazo[1,2-a]pyridin-3-yl)acetic acid917252-80-3C18H16N2O4
- 7-{[(4-Methoxyphenyl)amino]methyl}[1,3]dioxolo[4,5-g]quinolin-6(5H)-one947019-00-3C18H16N2O4
- (E)-2-Cyano-3-(3,4-dimethoxyphenyl)-N-(2-hydroxyphenyl)acrylamide1001430-38-1C18H16N2O4
- 8-Methoxy-1,3-dimethyl-2-(3-nitrophenyl)cyclohepta[c]pyrrol-4(2H)-one461431-29-8C18H16N2O4
- 3-[4-(4-Methoxyphenyl)-3-oxo-3,4-dihydroquinoxalin-2-yl]propanoic acid721426-17-1C18H16N2O4
- Methyl 4-(2-amino-3-cyano-5-oxo-5,6,7,8-tetrahydro-4H-chromen-4-yl)benzoate361367-90-0C18H16N2O4
- 3-(2,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid956611-49-7C18H16N2O4
- Propanamide, N-(4-amino-9,10-dihydro-3-methoxy-9,10-dioxo-1-anthracenyl)-84560-13-4C18H16N2O4
- Ethyl 3-methyl-6-(nicotinamido)benzofuran-2-carboxylate923682-80-8C18H16N2O4
- 6-(3-Hydroxyprop-1-ynyl)-1-(4-methoxybenzyl)-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one1198425-67-0C18H16N2O4
- Ethyl 2,5-dioxo-1,3-diphenylimidazolidine-4-carboxylate56598-97-1C18H16N2O4
- 4-(2,3-Dimethoxybenzylidene)-5-hydroxy-2-phenyl-2,4-dihydro-3H-pyrazol-3-one328970-48-5C18H16N2O4
- (E)-Ethyl 2-(2-cyano-3-(5-methylfuran-2-yl)acrylamido)benzoate327075-40-1C18H16N2O4
- (E)-N-(3-Acetamidophenyl)-3-(1,3-benzodioxol-5-yl)prop-2-enamide349578-13-8C18H16N2O4
- (2E)-2-Cyano-3-(2-hydroxy-5-methoxyphenyl)-N-(2-methoxyphenyl)prop-2-enamide380552-13-6C18H16N2O4
- 2-(3,4-Dimethylphenoxy)-N-(1,3-dioxoisoindol-4-yl)acetamide701253-10-3C18H16N2O4
- 5-(1,2-Diphenylethyl)-4,5,6-trihydroxypyrimidin-2(5H)-one109317-94-4C18H16N2O4
- 1,3-Dimethyl-5-{[5-(4-methylphenyl)furan-2-yl]methylidene}-1,3-diazinane-2,4,6-trione327076-96-0C18H16N2O4
- N-(1,3-Dioxoisoindolin-5-yl)-4-isopropoxybenzamide683235-66-7C18H16N2O4
- 5-Methoxy-2-[5-(2-methoxyphenoxy)pyrimidin-4-yl]phenol877803-68-4C18H16N2O4
- (Z)-4-Methyl-3-oxo-2-(pyridin-4-ylmethylene)-2,3-dihydrobenzofuran-6-yl dimethylcarbamate903586-86-7C18H16N2O4
- Ethyl 3-methyl-5-(nicotinamido)benzofuran-2-carboxylate923201-48-3C18H16N2O4
- Ethyl 6-(isonicotinamido)-3-methylbenzofuran-2-carboxylate923201-44-9C18H16N2O4
- 2-[(2-Benzyl-3-oxo-2,3-dihydro-1H-isoindol-1-yl)formamido]acetic acid1214672-48-6C18H16N2O4
- N-(2-Ethoxyphenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide941949-40-2C18H16N2O4
- Ethyl 1-benzyl-4-hydroxy-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxylate179064-00-7C18H16N2O4
- Hydantoin, 3-(acetoxymethyl)-5,5-diphenyl-27506-79-2C18H16N2O4
- (5Z)-1-(4-Ethylphenyl)-5-[(5-methylfuran-2-yl)methylidene]-1,3-diazinane-2,4,6-trione374083-48-4C18H16N2O4
- 3,5-Pyrazolidinedione, 4-[(2,4-dimethoxyphenyl)methylene]-1-phenyl-77738-07-9C18H16N2O4
- 2-(2,5-Dioxopyrrolidin-1-yl)-N-(2-phenoxyphenyl)acetamide392324-98-0C18H16N2O4
- 3-(3-Phenoxypropanamido)benzofuran-2-carboxamide399000-40-9C18H16N2O4
- 3-(2-Methoxyacetamido)-N-phenylbenzofuran-2-carboxamide862829-65-0C18H16N2O4
- N-[3-(2-Oxopyrrolidin-1-yl)phenyl]-1,3-benzodioxole-5-carboxamide922886-92-8C18H16N2O4
- (Z)-4-Methyl-3-oxo-2-(pyridin-3-ylmethylene)-2,3-dihydrobenzofuran-6-yl dimethylcarbamate904010-06-6C18H16N2O4
- N-(2,5-Dimethoxyphenyl)-4-hydroxyquinoline-3-carboxamide946260-10-2C18H16N2O4
- 2-(4-tert-Butyl-phenyl)-4-nitro-isoindole-1,3-dione340987-21-5C18H16N2O4
- Methyl 6-cyclopropyl-3-(4-methoxyphenyl)isoxazolo[5,4-b]pyridine-4-carboxylate1018125-63-7C18H16N2O4
- Ethyl 4-(3-amino-1-benzofuran-2-amido)benzoate914207-33-3C18H16N2O4
- N-1,3-Benzodioxol-5-yl-2-(5-methoxy-1H-indol-1-yl)acetamide1081113-93-0C18H16N2O4
- Methyl 5-((6-oxo-4-(p-tolyl)pyrimidin-1(6H)-yl)methyl)furan-2-carboxylate1211733-66-2C18H16N2O4
- 6-Quinazolinecarboxylic acid, 1,4-dihydro-2-(2-ethoxy-3-methylphenyl)-4-oxo-68274-56-6C18H16N2O4
- 1-(4-(Benzyloxy)phenyl)-6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxylic acid2146079-62-9C18H16N2O4
- Methyl 2-(4-(2-quinoxalinyloxy)phenoxy)propanoate76578-00-2C18H16N2O4
- Xanthen-9-one, 3-nitro-4-pyrrolidinylmethyl-43159-95-1C18H16N2O4
- Ethyl 7,9-dioxo-5b,6,7,8,9,11-hexahydroindolizino(1,2-b)quinoline-8-carboxylate32889-86-4C18H16N2O4
- (4e)-4-(3-Ethoxy-2-hydroxybenzylidene)-1-phenylpyrazolidine-3,5-dione5966-45-0C18H16N2O4
- (2E)-2-Cyano-3-(2-hydroxy-5-methoxyphenyl)-N-(4-methoxyphenyl)prop-2-enamide379731-00-7C18H16N2O4
- (2E)-2-Cyano-3-(3-hydroxy-4-methoxyphenyl)-N-(2-methoxyphenyl)prop-2-enamide358787-29-8C18H16N2O4
- N-(2-Ethoxyphenyl)-2-methyl-1,3-dioxoisoindole-5-carboxamide518022-29-2C18H16N2O4
- 2-(3,4-Dimethylphenoxy)-N-(1,3-dioxoisoindol-5-yl)acetamide518021-53-9C18H16N2O4
- N-(3-Hydroxyphenyl)-1,3-dioxo-2-propylisoindole-5-carboxamide518010-98-5C18H16N2O4
- (5E)-1-(3,4-Dimethylphenyl)-5-[(5-methylfuran-2-yl)methylidene]-1,3-diazinane-2,4,6-trione347388-03-8C18H16N2O4
- N-(4-Acetylphenyl)-2-(3-oxo-1,4-benzoxazin-4-yl)acetamide839695-81-7C18H16N2O4
- 2-(2-Hydroxy-5-oxo-4,4-diphenyl-4,5-dihydro-1H-imidazol-1-yl)propanoic acid58989-54-1C18H16N2O4
- 3-[(2H-1,3-Benzodioxol-5-yl)amino]-1-(3-methylphenyl)pyrrolidine-2,5-dione1008268-27-6C18H16N2O4
- 8-Methoxy-2-oxo-N-(1-pyridin-4-ylethyl)chromene-3-carboxamide894657-06-8C18H16N2O4
- 1-[(3,4-Dimethoxy-2-nitrophenyl)methyl]isoquinoline33130-18-6C18H16N2O4
- 3-({2-[9-Oxo-10(9H)-acridinyl]acetyl}amino)propanoic acid903862-54-4C18H16N2O4
- 2-(4-Methoxyphenoxy)-N-(3-phenyl-1,2-oxazol-5-yl)acetamide901657-76-9C18H16N2O4
- N-(1-Methyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)benzo[d][1,3]dioxole-5-carboxamide922054-28-2C18H16N2O4
- 3a,3'a,4,4',7,7',7a,7'a-Octahydro(2,2'-bi-4,7-methano-2H-isoindole)-1,1',3,3'-tetrone3647-75-4C18H16N2O4
- 2-Oxo-N-(3-(quinolin-8-yloxy)propyl)-2H-pyran-5-carboxamide1235233-06-3C18H16N2O4
- 4-Hydroxy-N-(2-methoxy-5-methylphenyl)-2-oxo-1,2-dihydroquinoline-3-carboxamide941898-62-0C18H16N2O4
- 4-Hydroxy-N-(3-methoxybenzyl)-2-oxo-1,2-dihydroquinoline-3-carboxamide941923-54-2C18H16N2O4
- 5-Hydroxy-2-[3-(4-methoxyphenoxy)phenyl]-3-methylpyrimidin-4(3H)-one1333240-15-5C18H16N2O4
- (E)-2-((4-(3-(Furan-2-yl)acrylamido)but-2-yn-1-yl)oxy)benzamide1421587-87-2C18H16N2O4
- 1-[6-Acetyl-4-(2,6-diacetyl-4-pyridinyl)-2-pyridinyl]ethanone66980-29-8C18H16N2O4
- 2-[[(5-Oxo-1-phenylpyrrolidin-3-yl)carbonyl]amino]benzoic acid39630-02-9C18H16N2O4
- 1,1'-(2,3,5,6-Tetramethyl-1,4-phenylene)bis(1H-pyrrole-2,5-dione)66320-23-8C18H16N2O4
- 5-Methoxy-2-[5-(4-methoxyphenoxy)pyrimidin-4-yl]phenol850765-26-3C18H16N2O4
- 5-Methoxy-2-[(7-methyl-4-oxopyrido[1,2-a]pyrimidin-2-yl)methoxy]benzaldehyde786727-89-7C18H16N2O4
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 3-(4-((3-Phenyl-1,2,4-oxadiazol-5-yl)methoxy)phenyl)propanoic acid, 3-Quinolinecarboxamide, 1,2-dihydro-4-hydroxy-N-(4-methoxyphenyl)-1-methyl-2-oxo-, 4-Hydroxy-N-(3-methoxyphenyl)-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxamide. 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.