Molecular formula
C18H16N2O5
179 compounds have this formula on CompoundList.
- Molar mass
- 340.33g/mol
- Monoisotopic mass
- 340.1059Da
- Atoms
- 41
- Elements
- 4
- Rings plus double bonds
- 12
The formula C18H16N2O5 describes a molecule made of 18 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms 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 × 1863.53%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 164.74%1.008 × 16 = 16.128 g/mol
- N Nitrogen × 28.23%14.007 × 2 = 28.014 g/mol
- O Oxygen × 523.50%15.999 × 5 = 79.995 g/mol
Look up another formula
Compounds with the formula C18H16N2O5
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 179 compounds
![N-[(2H-1,3-Benzodioxol-5-yl)methyl]-3-(2-oxo-2,3-dihydro-1,3-benzoxazol-3-yl)propanamide chemical structure, C18H16N2O5, CAS 853751-94-7](/s/ZDXUUIKUKXQSEN-UHFFFAOYSA-N.svg)
N-[(2H-1,3-Benzodioxol-5-yl)methyl]-3-(2-oxo-2,3-dihydro-1,3-benzoxazol-3-yl)propanamide
CAS 853751-94-7C18H16N2O5
![2-Amino-4-(2,3-dimethoxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile chemical structure, C18H16N2O5, CAS 326915-11-1](/s/JWZCSXZDWNXHFR-UHFFFAOYSA-N.svg)
2-Amino-4-(2,3-dimethoxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile
CAS 326915-11-1C18H16N2O5
2-Amino-4-(7-methoxy-1,3-benzodioxol-5-yl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile
CAS 413618-81-2C18H16N2O5
![Methyl 2-{[3-(2-oxo-1,3-benzoxazol-3(2H)-yl)propanoyl]amino}benzoate chemical structure, C18H16N2O5, CAS 851989-25-8](/s/VWPXUFYOECQTHF-UHFFFAOYSA-N.svg)
Methyl 2-{[3-(2-oxo-1,3-benzoxazol-3(2H)-yl)propanoyl]amino}benzoate
CAS 851989-25-8C18H16N2O5
![4-[2-(2-Oxo-benzooxazol-3-yl)-acetylamino]-benzoic acid ethyl ester chemical structure, C18H16N2O5, CAS 440660-82-2](/s/QODKUFILNFBNIE-UHFFFAOYSA-N.svg)
4-[2-(2-Oxo-benzooxazol-3-yl)-acetylamino]-benzoic acid ethyl ester
CAS 440660-82-2C18H16N2O5
![Ethyl 4-{[3-(2,4-dihydroxyphenyl)-1H-pyrazol-4-yl]oxy}benzoate chemical structure, C18H16N2O5, CAS 1009770-20-0](/s/ZINJDAOAWWAALP-UHFFFAOYSA-N.svg)
Ethyl 4-{[3-(2,4-dihydroxyphenyl)-1H-pyrazol-4-yl]oxy}benzoate
CAS 1009770-20-0C18H16N2O5
N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-3-(2-oxo-1,3-benzoxazol-3(2H)-yl)propanamide
CAS 831188-65-9C18H16N2O5
![Ethyl [(4-oxido-2-oxo-3-phenylquinoxalin-1(2H)-yl)oxy]acetate chemical structure, C18H16N2O5, CAS 374919-16-1](/s/FRBYBEMPGDPUPP-UHFFFAOYSA-N.svg)
Ethyl [(4-oxido-2-oxo-3-phenylquinoxalin-1(2H)-yl)oxy]acetate
CAS 374919-16-1C18H16N2O5
3-(2-Methoxy-4-methoxycarboxybenzyl)-5-nitroindole
CAS 107786-36-7C18H16N2O5
![5-[2-(2,2-Dimethyl-6-phenyl-4H-1,3-dioxin-4-ylidene)ethylidene]-2,4,6(1H,3H,5H)-pyrimidinetrione chemical structure, C18H16N2O5, CAS 239450-31-8](/s/MKPULMPYJJPLDZ-WQLSENKSSA-N.svg)
5-[2-(2,2-Dimethyl-6-phenyl-4H-1,3-dioxin-4-ylidene)ethylidene]-2,4,6(1H,3H,5H)-pyrimidinetrione
CAS 239450-31-8C18H16N2O5
![Ethyl 3-{[3-(4-nitrophenyl)acryloyl]amino}benzoate chemical structure, C18H16N2O5, CAS 1164464-59-8](/s/DVPBEOKGNLCTEH-DHZHZOJOSA-N.svg)
Ethyl 3-{[3-(4-nitrophenyl)acryloyl]amino}benzoate
CAS 1164464-59-8C18H16N2O5
![(2Z)-2-[(2,5-Dimethoxyphenyl)imino]-7-hydroxy-2H-chromene-3-carboxamide chemical structure, C18H16N2O5, CAS 478481-91-3](/s/KZEADLVWXDALNK-UHFFFAOYSA-N.svg)
(2Z)-2-[(2,5-Dimethoxyphenyl)imino]-7-hydroxy-2H-chromene-3-carboxamide
CAS 478481-91-3C18H16N2O5
![[1-(2,3-Dihydroindol-1-yl)-1-oxopropan-2-yl] 3-nitrobenzoate chemical structure, C18H16N2O5, CAS 878616-85-4](/s/JJHQLOVQABNULO-UHFFFAOYSA-N.svg)
[1-(2,3-Dihydroindol-1-yl)-1-oxopropan-2-yl] 3-nitrobenzoate
CAS 878616-85-4C18H16N2O5
![N'-[2-(4-Methoxyphenoxy)acetyl]-1-benzofuran-2-carbohydrazide chemical structure, C18H16N2O5, CAS 329224-06-8](/s/YCFFECJWVKVNOZ-UHFFFAOYSA-N.svg)
N'-[2-(4-Methoxyphenoxy)acetyl]-1-benzofuran-2-carbohydrazide
CAS 329224-06-8C18H16N2O5
Dynasore hydrate
CAS 1202867-00-2C18H16N2O5
N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-2-(3-oxo-1,4-benzoxazin-4-yl)acetamide
CAS 606118-21-2C18H16N2O5
3,4-Dihydro-6,7-dimethyl-4-(6-nitro-1,3-benzodioxol-5-yl)-2(1H)-quinolinone
CAS 430450-91-2C18H16N2O5
2-Amino-4-(2,5-dimethoxyphenyl)-5,7-dihydroxy-4H-chromene-3-carbonitrile
CAS 865542-38-7C18H16N2O5
N-(2,4-Dimethoxyphenyl)-2-(2,3-dioxo-2,3-dihydro-1H-indol-1-yl)acetamide
CAS 609797-28-6C18H16N2O5
![2-Amino-4-(2-ethoxyphenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile chemical structure, C18H16N2O5, CAS 860648-69-7](/s/KXJZXGQFAURTQC-UHFFFAOYSA-N.svg)
2-Amino-4-(2-ethoxyphenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile
CAS 860648-69-7C18H16N2O5
![1-Ethyl-3-hydroxy-3-[2-(4-nitrophenyl)-2-oxoethyl]-1,3-dihydro-2H-indol-2-one chemical structure, C18H16N2O5, CAS 421578-88-3](/s/PUKINCMZUYEQTH-UHFFFAOYSA-N.svg)
1-Ethyl-3-hydroxy-3-[2-(4-nitrophenyl)-2-oxoethyl]-1,3-dihydro-2H-indol-2-one
CAS 421578-88-3C18H16N2O5
2,4-Dimethoxy-N-(2-methyl-1,3-dioxoisoindolin-5-yl)benzamide
CAS 318513-51-8C18H16N2O5
![Methyl 2-[[2-(3-oxo-1,4-benzoxazin-4-yl)acetyl]amino]benzoate chemical structure, C18H16N2O5, CAS 839686-89-4](/s/UZFSMQYLZAAKBD-UHFFFAOYSA-N.svg)
Methyl 2-[[2-(3-oxo-1,4-benzoxazin-4-yl)acetyl]amino]benzoate
CAS 839686-89-4C18H16N2O5
![2-Amino-4-(2,5-dimethoxyphenyl)-7-methyl-5-oxo-4H-pyrano[3,2-c]pyran-3-carbonitrile chemical structure, C18H16N2O5, CAS 298219-18-8](/s/FLWGLQUNJRHGRE-UHFFFAOYSA-N.svg)
2-Amino-4-(2,5-dimethoxyphenyl)-7-methyl-5-oxo-4H-pyrano[3,2-c]pyran-3-carbonitrile
CAS 298219-18-8C18H16N2O5
- 2-Amino-4-(3,4-dimethoxyphenyl)-7-methyl-5-oxo-4,5-dihydropyrano[4,3-b]pyran-3-carbonitrile315246-12-9C18H16N2O5
- 3-[(2Z)-2-(2,3-Dihydro-1,4-benzodioxin-6-yl)-2-hydroxyiminoethyl]-3-hydroxy-1H-indol-2-one442653-26-1C18H16N2O5
- 2-Amino-4-(4-ethoxyphenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile876709-81-8C18H16N2O5
- (S)-N-(3-Dibenzo[1,4]dioxin-2-yl-2-oxo-oxazolidin-5-ylmethyl)-acetamide1021186-98-0C18H16N2O5
- N-(1,3-Benzodioxol-5-yl)-3-(2-methoxyphenyl)-4,5-dihydro-1,2-oxazole-5-carboxamide899513-54-3C18H16N2O5
- (E)-Isobutyl 2-cyano-3-(5-(3-nitrophenyl)furan-2-yl)acrylate301339-30-0C18H16N2O5
- N-Hydroxy-4-[2-(benzofuran-2-yl-carbonylamino)-ethoxy]-benzamide783355-19-1C18H16N2O5
- (E)-3-(4-Methoxystyryl)imidazo[1,5-a]pyridine oxalate473562-48-0C18H16N2O5
- Methyl 4-[[2-(2-oxo-3H-1,4-benzoxazin-4-yl)acetyl]amino]benzoate868144-89-2C18H16N2O5
- Nybomycin acetate35982-88-8C18H16N2O5
- Methyl (E)-4-(4,8-dimethoxy-9H-pyrido[3,4-b]indol-1-yl)-4-oxobut-2-enoate94530-77-5C18H16N2O5
- N-(4-(4,5-Dimethoxy-1,3-dioxoisoindolin-2-yl)phenyl)acetamide337933-01-4C18H16N2O5
- Benzyl (2-((1,3-dioxoisoindolin-2-yl)oxy)ethyl)carbamate168827-96-1C18H16N2O5
- 2-(2-Methylpropyl)-5-(4-nitrophenoxy)isoindole-1,3-dione294890-78-1C18H16N2O5
- Methyl 3-(3,4-dihydroisoquinolin-2(1H)-ylcarbonyl)-5-nitrobenzoate328284-57-7C18H16N2O5
- Methyl 3-(3,4-dihydroquinolin-1(2H)-ylcarbonyl)-5-nitrobenzoate329932-14-1C18H16N2O5
- 2-Amino-4-(3-ethoxy-4-hydroxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile340809-01-0C18H16N2O5
- (E)-2-((3,4,5-Trimethoxybenzylidene)amino)isoindoline-1,3-dione79492-29-8C18H16N2O5
- 3-(3-(4-(2-Methoxyethoxy)phenyl)-1,2,4-oxadiazol-5-yl)benzoic acid745055-24-7C18H16N2O5
- Methyl 4-((3-(2-hydroxy-4-methoxyphenyl)-1H-pyrazol-4-yl)oxy)benzoate306280-10-4C18H16N2O5
- 3,4-Dimethoxy-N-(2-methyl-1,3-dioxoisoindolin-4-yl)benzamide683232-08-8C18H16N2O5
- 3-(3,5-Dimethoxybenzamido)benzofuran-2-carboxamide477511-18-5C18H16N2O5
- N-(2,5-Dimethoxy-phenyl)-2-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-acetamide302558-89-0C18H16N2O5
- 4-[4-(Dimethoxymethyl)-2-pyrimidinyl]phenyl 2-furoate477870-24-9C18H16N2O5
- 1-Ethyl-3-hydroxy-3-[2-(2-nitrophenyl)-2-oxoethyl]indol-2-one431913-34-7C18H16N2O5
- Butan-2-yl (2E)-2-cyano-3-[5-(4-nitrophenyl)furan-2-yl]prop-2-enoate301339-45-7C18H16N2O5
- 3,5-Dimethoxy-N-(2-methyl-1,3-dioxoisoindolin-4-yl)benzamide683231-84-7C18H16N2O5
- (Z)-2-((2-(4-Methoxybenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)acetohydrazide879927-72-7C18H16N2O5
- Benzoic acid, 3-methoxy-4-[(1-methyl-5-nitro-1H-indol-3-yl)methyl]-138681-67-1C18H16N2O5
- 6-Quinazolinecarboxylic acid, 1,4-dihydro-2-(2-ethoxy-3-methoxyphenyl)-4-oxo-68274-48-6C18H16N2O5
- 1 suppliers2-(2,6-Dioxopiperidin-3-yl)-4-(pent-4-YN-1-yloxy)isoindoline-1,3-dione2568279-75-2C18H16N2O5
- 2-(3,4,5-Trimethoxybenzoyl)-3H-quinazolin-4-one2673232-30-7C18H16N2O5
- 3-Nitro-1-(4-methoxyphenyl)-2-methyl-1H-indol-6-yl acetate147591-49-9C18H16N2O5
- Ethyl 3-[(2E)-3-(2-nitrophenyl)prop-2-enoylamino]benzoate524686-67-7C18H16N2O5
- (Z)-7-((Dimethylamino)methyl)-6-hydroxy-2-(3-nitrobenzylidene)benzofuran-3(2H)-one899398-42-6C18H16N2O5
- 1H-Isoindole-1,3(2H)-dione, 2-[3-(4-methyl-2-nitrophenoxy)propyl]-713493-55-1C18H16N2O5
- 3-(2,4-Dimethoxybenzamido)benzofuran-2-carboxamide477511-19-6C18H16N2O5
- [(E)-(1-Methyl-2-oxoindol-3-ylidene)amino] 3,4-dimethoxybenzoate6060-36-2C18H16N2O5
- (E)-sec-Butyl 2-cyano-3-(5-(3-nitrophenyl)furan-2-yl)acrylate301339-44-6C18H16N2O5
- 2-(2-(3,4-Dimethoxyphenyl)-2-oxoethoxy)-4H-pyrido[1,2-a]pyrimidin-4-one1105250-47-2C18H16N2O5
- Methyl 4-((3-(2,4-dihydroxyphenyl)-5-methyl-1H-pyrazol-4-yl)oxy)benzoate879565-69-2C18H16N2O5
- (5E)-5-(4-Hydroxy-3,5-dimethoxybenzylidene)-3-phenylimidazolidine-2,4-dione444783-23-7C18H16N2O5
- 3-Nitro-4-[2-(pyrrolidinylcarbonyl)phenoxy]benzaldehyde634174-85-9C18H16N2O5
- Ethyl 2-(3-nitrophenyl)-5-oxo-5,6,7,8-tetrahydro-4-quinolinecarboxylate866050-46-6C18H16N2O5
- 2,6-Dimethoxy-N-(2-methyl-1,3-dioxoisoindol-4-yl)benzamide683232-47-5C18H16N2O5
- 3-(3,4-Dimethoxybenzamido)benzofuran-2-carboxamide477511-85-6C18H16N2O5
- (E)-Isobutyl 2-cyano-3-(5-(4-nitrophenyl)furan-2-yl)acrylate301339-31-1C18H16N2O5
- 2-[3-[(E)-4-(Furan-2-yl)-2-oxobut-3-enyl]-3-hydroxy-2-oxoindol-1-yl]acetamide676614-97-4C18H16N2O5
- 2-(5-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)isoxazol-3-yl)-N-(furan-2-ylmethyl)acetamide1210431-71-2C18H16N2O5
- 4-((1-(2-(Benzo[d]isoxazol-3-yl)acetyl)azetidin-3-yl)oxy)-6-methyl-2H-pyran-2-one1795300-87-6C18H16N2O5
- 6-Quinazolinecarboxylic acid, 1,4-dihydro-2-(2-ethoxy-5-methoxyphenyl)-4-oxo-68274-52-2C18H16N2O5
- Xanthen-9-one, 4-morpholinomethyl-3-nitro-43159-94-0C18H16N2O5
- 2-tert-Butyl-5-(3-nitrophenoxy)isoindole-1,3-dione774184-10-0C18H16N2O5
- 2,6-Dimethoxy-N-(2-methyl-1,3-dioxoisoindol-5-yl)benzamide476326-06-4C18H16N2O5
- N-[1,3-Dioxo-2-(oxolan-2-ylmethyl)isoindol-5-yl]furan-2-carboxamide831248-16-9C18H16N2O5
- 2,3-Dimethoxy-N-(2-methyl-1,3-dioxoisoindol-4-yl)benzamide922807-62-3C18H16N2O5
- 2-[4-(4-Nitrophenoxy)butyl]-1H-isoindole-1,3(2H)-dione101732-28-9C18H16N2O5
- N-((3-(Benzo[d][1,3]dioxol-5-yl)-2-oxooxazolidin-5-yl)methyl)benzamide954675-79-7C18H16N2O5
- N-((5-(Furan-2-yl)isoxazol-3-yl)methyl)-3-methyl-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxamide1210947-46-8C18H16N2O5
- N-((5-(Benzo[d][1,3]dioxol-5-yl)isoxazol-3-yl)methyl)-2,5-dimethylfuran-3-carboxamide1208949-27-2C18H16N2O5
- 3-Hydroxy-N-[2-(4-methoxyphenyl)-2-oxoethyl]-2H-1,4-benzoxazine-6-carboxamide1435906-95-8C18H16N2O5
- N-(4-(Benzo[d][1,3]dioxol-5-yloxy)but-2-yn-1-yl)-5-cyclopropylisoxazole-3-carboxamide1448029-97-7C18H16N2O5
- (1-Formyl-6,9-dimethyl-2,8-dioxo-1,2,8,9-tetrahydropyrido(3,2-g)quinolin-4-yl)methyl acetate5978-63-2C18H16N2O5
- 6'-Methoxy-3,3'-dimethyl-8'-nitrospiro[1,3-benzoxazole-2,2'-chromene]33442-78-3C18H16N2O5
- 2-tert-Butyl-5-(4-nitrophenoxy)isoindole-1,3-dione667403-79-4C18H16N2O5
- 5-(Hydroxymethyl)-N-(4-methoxyphenyl)-8-methyl-2-oxo-2H-pyrano[2,3-c]pyridine-3-carboxamide443116-92-5C18H16N2O5
- 3-[2-(4-Methoxyphenoxy)acetamido]-1-benzofuran-2-carboxamide898373-68-7C18H16N2O5
- Methyl 5-((3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)methyl)furan-2-carboxylate922862-34-8C18H16N2O5
- Methyl 5-((3-(3-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)methyl)furan-2-carboxylate922927-10-4C18H16N2O5
- 2-[(1,3-Benzodioxol-5-yloxy)methyl]-5-(2-ethoxyphenyl)-1,3,4-oxadiazole893778-29-5C18H16N2O5
- 2-[3-(3-Methyl-4-nitrophenoxy)propyl]-1H-isoindole-1,3(2H)-dione329945-94-0C18H16N2O5
- 2-Nitro-4-(3-pyrrolidinylcarbonylphenyl)benzoic acid1262010-51-4C18H16N2O5
- 5-Nitro-3-(3-pyrrolidinylcarbonylphenyl)benzoic acid1261936-41-7C18H16N2O5
- 4-Nitro-2-(3-pyrrolidinylcarbonylphenyl)benzoic acid1261899-10-8C18H16N2O5
- 1,3-Bis(2-methoxyphenyl)pyrimidine-2,4,6(1H,3H,5H)-trione184589-04-6C18H16N2O5
- 5-Carboxy SU 5402258831-77-5C18H16N2O5
Frequently asked questions
What is the molar mass of C18H16N2O5?
The molar mass of C18H16N2O5 is 340.33 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 5 oxygen atoms. The monoisotopic mass is 340.1059 Da.
How many compounds have the formula C18H16N2O5?
CompoundList lists 179 compounds with the molecular formula C18H16N2O5, including N-[(2H-1,3-Benzodioxol-5-yl)methyl]-3-(2-oxo-2,3-dihydro-1,3-benzoxazol-3-yl)propanamide, 2-Amino-4-(2,3-dimethoxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile, 2-Amino-4-(7-methoxy-1,3-benzodioxol-5-yl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile. 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 C18H16N2O5?
C18H16N2O5 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.