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 201 to 300 of 354 compounds
(2-Methylphenyl)methyl 3,4-dihydro-1,4-dioxo-2(1H)-phthalazineacetate
CAS 793730-69-5C18H16N2O4
![3-Methoxy-4-[(7-methyl-4-oxopyrido[1,2-a]pyrimidin-2-yl)methoxy]benzaldehyde chemical structure, C18H16N2O4, CAS 778618-90-9](/s/IWNQDLHITSOUTI-UHFFFAOYSA-N.svg)
3-Methoxy-4-[(7-methyl-4-oxopyrido[1,2-a]pyrimidin-2-yl)methoxy]benzaldehyde
CAS 778618-90-9C18H16N2O4
![4-[3-[2-(Furan-2-yl)-2-oxoethyl]-3-hydroxy-2-oxoindol-1-yl]butanenitrile chemical structure, C18H16N2O4, CAS 439093-48-8](/s/HZBIEPXYVWEUHD-UHFFFAOYSA-N.svg)
4-[3-[2-(Furan-2-yl)-2-oxoethyl]-3-hydroxy-2-oxoindol-1-yl]butanenitrile
CAS 439093-48-8C18H16N2O4
![1,4-Benzenedicarboxylic acid, 1-methyl ester, 4-[2-(1-oxo-3-phenyl-2-propen-1-yl)hydrazide] chemical structure, C18H16N2O4, CAS 64033-96-1](/s/FRNIERHZTPFXFN-GHXNOFRVSA-N.svg)
1,4-Benzenedicarboxylic acid, 1-methyl ester, 4-[2-(1-oxo-3-phenyl-2-propen-1-yl)hydrazide]
CAS 64033-96-1C18H16N2O4
![3-(Benzo[d][1,3]dioxol-5-ylamino)-1-benzylpyrrolidine-2,5-dione chemical structure, C18H16N2O4, CAS 1009489-21-7](/s/QNIJIVXQAUQOID-UHFFFAOYSA-N.svg)
3-(Benzo[d][1,3]dioxol-5-ylamino)-1-benzylpyrrolidine-2,5-dione
CAS 1009489-21-7C18H16N2O4
3-(2-(o-Tolyloxy)acetamido)benzofuran-2-carboxamide
CAS 898373-72-3C18H16N2O4
3-(2-(m-Tolyloxy)acetamido)benzofuran-2-carboxamide
CAS 898373-74-5C18H16N2O4
![Ethyl 4-(5-methylfuro[3,2-b]pyridine-2-carboxamido)benzoate chemical structure, C18H16N2O4, CAS 941969-43-3](/s/CRHBJTHLNIVRRN-UHFFFAOYSA-N.svg)
Ethyl 4-(5-methylfuro[3,2-b]pyridine-2-carboxamido)benzoate
CAS 941969-43-3C18H16N2O4
2-Imino-8-methoxy-N-(2-methoxyphenyl)-2H-chromene-3-carboxamide
CAS 669711-20-0C18H16N2O4
2-Imino-8-methoxy-N-(3-methoxyphenyl)-2H-chromene-3-carboxamide
CAS 669711-21-1C18H16N2O4
N-(2,4-Dimethoxyphenyl)-2-imino-2H-chromene-3-carboxamide
CAS 669711-22-2C18H16N2O4
![4-[3-(1,3-Benzodioxol-5-yl)propanoyl]-3,4-dihydroquinoxalin-2(1H)-one chemical structure, C18H16N2O4, CAS 950138-40-6](/s/AVSFNQGNFVHKMT-UHFFFAOYSA-N.svg)
4-[3-(1,3-Benzodioxol-5-yl)propanoyl]-3,4-dihydroquinoxalin-2(1H)-one
CAS 950138-40-6C18H16N2O4
![1-(Benzo[d][1,3]dioxole-5-carbonyl)-N-methylindoline-2-carboxamide chemical structure, C18H16N2O4, CAS 1103514-26-6](/s/PFDKHBSJFALDIP-UHFFFAOYSA-N.svg)
1-(Benzo[d][1,3]dioxole-5-carbonyl)-N-methylindoline-2-carboxamide
CAS 1103514-26-6C18H16N2O4
![2-{[(Benzyloxy)carbonyl]amino}-3-(4-cyanophenyl)propanoic acid chemical structure, C18H16N2O4, CAS 101514-54-9](/s/HNPWZDAPPQRAAF-UHFFFAOYSA-N.svg)
2-{[(Benzyloxy)carbonyl]amino}-3-(4-cyanophenyl)propanoic acid
CAS 101514-54-9C18H16N2O4
Ethyl 5-methyl-7-nitro-3-phenyl-1H-indole-2-carboxylate
CAS 402961-11-9C18H16N2O4
1-(1-Benzofuran-2-ylcarbonyl)-4-(2-furoyl)piperazine
CAS 1119440-35-5C18H16N2O4
3-Phenyl-1,2-benzisoxazol-6-yl 4-morpholinecarboxylate
CAS 1144462-82-7C18H16N2O4
2-(7-Methoxy-2-oxo-2H-chromen-4-yl)-N-(pyridin-3-ylmethyl)acetamide
CAS 919761-87-8C18H16N2O4
Methyl 4-(6-methoxy-2-methyl-4-oxoquinazolin-3(4H)-yl)benzoate
CAS 1237744-91-0C18H16N2O4
![N-{2-[2-(3-Hydroxy-2-oxo-2,3-dihydro-1H-indol-3-yl)acetyl]phenyl}acetamide chemical structure, C18H16N2O4, CAS 1311923-22-4](/s/DQURZJDDDUSOKF-UHFFFAOYSA-N.svg)
N-{2-[2-(3-Hydroxy-2-oxo-2,3-dihydro-1H-indol-3-yl)acetyl]phenyl}acetamide
CAS 1311923-22-4C18H16N2O4
Ethyl 4-hydroxy-7-methyl-2-oxo-1-phenyl-1,2-dihydro-1,8-naphthyridine-3-carboxylate
CAS 1253791-02-4C18H16N2O4
![Methyl 4-[(1-oxo-1,2,3,4-tetrahydroisoquinolin-7-yl)carbamoyl]benzoate chemical structure, C18H16N2O4, CAS 1351595-19-1](/s/XWTDPNMJVKBFON-UHFFFAOYSA-N.svg)
Methyl 4-[(1-oxo-1,2,3,4-tetrahydroisoquinolin-7-yl)carbamoyl]benzoate
CAS 1351595-19-1C18H16N2O4
![1-(4-(Benzo[d][1,3]dioxol-5-yloxy)but-2-yn-1-yl)-3-phenylurea chemical structure, C18H16N2O4, CAS 1448129-03-0](/s/XFKZSHFSLUSUJT-UHFFFAOYSA-N.svg)
1-(4-(Benzo[d][1,3]dioxol-5-yloxy)but-2-yn-1-yl)-3-phenylurea
CAS 1448129-03-0C18H16N2O4
![N-(3-(Benzo[d][1,3]dioxol-5-yl)-3-hydroxypropyl)-3-cyanobenzamide chemical structure, C18H16N2O4, CAS 1421515-42-5](/s/ZGDTXRROKHRIOQ-UHFFFAOYSA-N.svg)
N-(3-(Benzo[d][1,3]dioxol-5-yl)-3-hydroxypropyl)-3-cyanobenzamide
CAS 1421515-42-5C18H16N2O4
- Methyl 3-(3-aminophenyl)-3-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)propanoate6329-29-9C18H16N2O4
- (E)-2-(4-Acetamidobenzamido)-3-phenylacrylic acid371209-43-7C18H16N2O4
- 4-Methoxy-3-[(7-methyl-4-oxopyrido[1,2-a]pyrimidin-2-yl)methoxy]benzaldehyde763097-89-8C18H16N2O4
- 1-Amino-4-hydroxy-2-morpholin-4-ylanthracene-9,10-dione332102-56-4C18H16N2O4
- 3-(2-(3,4-Dimethoxyphenyl)imidazo[1,2-a]pyridin-3-yl)acrylic acid727652-22-4C18H16N2O4
- 3-[(1R,9R)-9-Methyl-11-oxo-8-oxa-10,12-diazatricyclo[7.3.1.0,2,7]trideca-2(7),3,5-trien-10-yl]benzoic acid1955474-78-8C18H16N2O4
- 3-(2-Ethoxybenzamido)benzofuran-2-carboxamide898373-10-9C18H16N2O4
- 3-(2-(p-Tolyloxy)acetamido)benzofuran-2-carboxamide898373-76-7C18H16N2O4
- 1,3-Bis(4-amino-3-hydroxyphenoxy)benzene912852-12-1C18H16N2O4
- N-[3-(1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl)propoxy]benzamide123529-06-6C18H16N2O4
- Ethyl 1-[(4-nitrophenyl)methyl]-1H-indole-2-carboxylate161466-20-2C18H16N2O4
- N-(2,5-Dimethoxyphenyl)-5-phenyl-1,2-oxazole-3-carboxamide898481-43-1C18H16N2O4
- 2-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-2-oxoethyl 3,5-dimethylbenzoate930020-00-1C18H16N2O4
- 3-(4-Methoxyphenyl)-2-methyl-4-oxo-3,4-dihydroquinazolin-6-yl acetate951983-87-2C18H16N2O4
- 3-(2-Phenoxypropanamido)benzofuran-2-carboxamide898373-58-5C18H16N2O4
- 6,7-Dimethoxy-4-(4-formylaminophenoxy)quinoline190728-28-0C18H16N2O4
- (2R)-2-{[(Benzyloxy)carbonyl]amino}-3-(4-cyanophenyl)propanoic acid167969-09-7C18H16N2O4
- Methyl 2,4-dioxo-3-(2-phenylethyl)-1,2,3,4-tetrahydroquinazoline-7-carboxylate892290-68-5C18H16N2O4
- Methyl 6-(4-methoxyphenyl)-2-methyl-5-oxo-5,6-dihydro-1,6-naphthyridine-3-carboxylate1010875-06-5C18H16N2O4
- Methyl 6-(2-methoxyphenyl)-2-methyl-5-oxo-5,6-dihydro-1,6-naphthyridine-3-carboxylate1010887-65-6C18H16N2O4
- Methyl 4-{[(cyanomethyl)(phenyl)carbamoyl]methoxy}benzoate1240717-90-1C18H16N2O4
- 3-{3-[(4-Methylphenyl)amino]-2,5-dioxoazolidinyl}benzoic acid1095383-41-7C18H16N2O4
- N-(5-Methyl-4,5,6,7-tetrahydro-2,1-benzoxazol-3-yl)-4-oxo-4H-chromene-2-carboxamide905768-89-0C18H16N2O4
- N-((5-(2-Methyl-2,3-dihydrobenzofuran-5-yl)isoxazol-3-yl)methyl)furan-2-carboxamide1209312-67-3C18H16N2O4
- 4-(2-Methyl-4-oxo-5,6-dihydro-2H-2,6-methano-1,3,5-benzoxadiazocin-3(4H)-yl)benzoic acid1239771-22-2C18H16N2O4
- Ethyl 4-hydroxy-2-oxo-1-(pyridin-2-ylmethyl)-1,2-dihydroquinoline-3-carboxylate372962-31-7C18H16N2O4
- N-[Cyano(2-methoxyphenyl)methyl]-2,3-dihydro-1,4-benzodioxine-5-carboxamide1389444-08-9C18H16N2O4
- (3-Acetyl-5-benzyloxy-indazol-1-yl)-acetic acid1386457-62-0C18H16N2O4
- 4-{[1-(1H-Indole-5-carbonyl)azetidin-3-yl]oxy}-6-methyl-2H-pyran-2-one1795086-43-9C18H16N2O4
- 6-Benzyl 2-ethyl imidazo[1,2-a]pyridine-2,6-dicarboxylate1400637-01-5C18H16N2O4
- (E)-3-(Benzo[d][1,3]dioxol-5-yl)-1-(3-(pyridin-3-yloxy)azetidin-1-yl)prop-2-en-1-one1904609-36-4C18H16N2O4
- N-(Furan-2-ylmethyl)-4-methoxy-6-oxo-1-phenyl-1,6-dihydropyridine-3-carboxamide2034320-33-5C18H16N2O4
- 4-Acetyl-N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)benzamide2034415-41-1C18H16N2O4
- N1-(furan-2-ylmethyl)-N2-(4-(furan-3-yl)benzyl)oxalamide2034456-82-9C18H16N2O4
- 3-((1-(1-Naphthoyl)azetidin-3-yl)methyl)oxazolidine-2,4-dione2034463-11-9C18H16N2O4
- N-(2,6-dioxo-3-piperidinyl)-3-phenoxyBenzamide2154339-15-6C18H16N2O4
- 2-Cyano-N-(3,4-dimethoxyphenyl)-3-(3-hydroxyphenyl)prop-2-enamide744223-06-1C18H16N2O4
- 2-Cyano-3-(4-hydroxy-3-methoxyphenyl)-N-(2-methoxyphenyl)prop-2-enamide358677-01-7C18H16N2O4
- {2-[(4-Acetylphenoxy)methyl]-1H-benzimidazol-1-yl}acetic acid891449-08-4C18H16N2O4
- Urea, N-(4-ethoxyphenyl)-N'-(4-oxo-4H-1-benzopyran-2-yl)-59629-52-6C18H16N2O4
- 7-Ethoxy-2-oxo-N'-phenylchromene-3-carbohydrazide7047-44-1C18H16N2O4
- 4-{[2-(3-Methylphenyl)-1,3-benzoxazol-6-yl]amino}-4-oxobutanoic acid878438-22-3C18H16N2O4
- N-(2,5-Dimethoxyphenyl)-2-(1H-indol-3-yl)-2-oxoacetamide852367-84-1C18H16N2O4
- 4-{[2-(2-Methylphenyl)-1,3-benzoxazol-6-yl]amino}-4-oxobutanoic acid878438-19-8C18H16N2O4
- 4-(2,5-Dioxopyrrolidin-1-yl)-N-(3-methoxyphenyl)benzamide418810-10-3C18H16N2O4
- N-(4-Methyl-2-oxo-2H-chromen-7-yl)-4,5,6,7-tetrahydro-1,2-benzoxazole-3-carboxamide832142-86-6C18H16N2O4
- 2-Imino-8-methoxy-N-(4-methoxyphenyl)-2H-chromene-3-carboxamide894229-58-4C18H16N2O4
- (2S)-2-{[(Benzyloxy)carbonyl]amino}-3-(3-cyanophenyl)propanoic acid1177904-89-0C18H16N2O4
- Methyl 5-{2-cyano-2-[(4-methylphenyl)carbamoyl]eth-1-en-1-yl}-2-methylfuran-3-carboxylate1009889-04-6C18H16N2O4
- (7-Methoxy-4-oxo-1,4-dihydroquinolin-6-yl)carbamic acid benzyl ester417722-47-5C18H16N2O4
- 6-(2-Methoxymethyl-pyrimidin-4-yloxy)-naphthalene-1-carboxylic acid methyl ester950643-23-9C18H16N2O4
- 2-(3-(Methoxymethyl)-1,2,4-oxadiazol-5-yl)benzyl benzoate1383575-36-7C18H16N2O4
- Ethyl 1-methyl-5-nitro-3-phenyl-1H-indole-2-carboxylate155697-64-6C18H16N2O4
- Methyl 3-formyl-1-(4-methoxybenzyl)-1H-indazole-4-carboxylate1262420-83-6C18H16N2O4
- 3-(1-(1-Naphthoyl)pyrrolidin-3-yl)oxazolidine-2,4-dione2034314-57-1C18H16N2O4
- 2-(1,3-Dioxaindan-5-yl)-N-[3-(2-oxoazetidin-1-yl)phenyl]acetamide2094184-32-2C18H16N2O4
- Methyl 2-(3-benzyl-2,4-dioxo-1,2,3,4-tetrahydroquinazolin-1-yl)acetate2640878-24-4C18H16N2O4
- 4-((4-Benzamido-3-methylphenyl)amino)-4-oxobut-2-enoic acid364624-22-6C18H16N2O4
- 5H-Benzo(4,5)cyclohepta(1,2-b)pyridine, 5-amino-, hydrogen fumarate63917-50-0C18H16N2O4
- N-(2,4-Dimethoxyphenyl)-2-(1H-indol-3-yl)-2-oxoacetamide852367-83-0C18H16N2O4
- 2-{[(Benzyloxy)carbonyl]amino}-2-(1H-indol-3-yl)acetic acid294888-41-8C18H16N2O4
- [2-(Furan-3-carbonyl)-1,2,3,4-tetrahydro-pyrido[4,3-b]indol-5-yl]-acetic acid866459-55-4C18H16N2O4
- 6,7-Dimethoxy-4-[(4-nitrophenyl)methyl]isoquinoline61190-23-6C18H16N2O4
- 3-(2,5-Dioxopyrrolidin-1-yl)-N-(2-hydroxy-4-methylphenyl)benzamide899290-40-5C18H16N2O4
- 3-(2,5-Dioxopyrrolidin-1-yl)-N-(4-hydroxy-2-methylphenyl)benzamide899266-10-5C18H16N2O4
- 3-Methoxy-4-[[3-methyl-4-oxo-3,4-dihydro-2-quinazolinyl]methoxy]benzaldehyde199114-39-1C18H16N2O4
- 2-Cyano-3-(3,4-dihydroxy-5-methoxyphenyl)-N-(4-methylphenyl)prop-2-enamide1057501-58-2C18H16N2O4
- Ethyl 2,4-dioxo-4-phenyl-3-(phenyldiazenyl)butanoate897008-53-6C18H16N2O4
- Carbamic acid, [2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)ethyl]-, phenylmethyl ester82933-20-8C18H16N2O4
- 5-(4-((4-Methoxybenzyl)oxy)pyrimidin-2-yl)benzene-1,3-diol1352570-99-0C18H16N2O4
- N-(Benzoyloxy)-2-benzyl-2,5-dihydro-1,3-oxazole-4-carboxamide88144-12-1C18H16N2O4
- 6-Cyclopropyl-3-(4-methoxybenzyl)isoxazolo[5,4-b]pyridine-4-carboxylic acid1263215-62-8C18H16N2O4
- 3-{[(Benzyloxy)carbonyl]amino}-1-methyl-1H-indole-2-carboxylic acid2287283-58-1C18H16N2O4
- 4-(1,2-Dihydro-2-methyl-1-oxo-2,7-naphthyridin-4-yl)-2,6-dimethoxybenzaldehyde2369067-49-0C18H16N2O4
- Ethyl 3-benzyl-2,4-dioxo-3,4-dihydroquinazoline-1(2H)-carboxylate199587-90-1C18H16N2O4
- 6-Hydroxy-2,5-bis(4-methoxyphenyl)-4(3H)-pyrimidinone29133-87-7C18H16N2O4
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 (2-Methylphenyl)methyl 3,4-dihydro-1,4-dioxo-2(1H)-phthalazineacetate, 3-Methoxy-4-[(7-methyl-4-oxopyrido[1,2-a]pyrimidin-2-yl)methoxy]benzaldehyde, 4-[3-[2-(Furan-2-yl)-2-oxoethyl]-3-hydroxy-2-oxoindol-1-yl]butanenitrile. 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.