Molecular formula
C18H16N4O3
197 compounds have this formula on CompoundList.
- Molar mass
- 336.35g/mol
- Monoisotopic mass
- 336.1222Da
- Atoms
- 41
- Elements
- 4
- Rings plus double bonds
- 13
The formula C18H16N4O3 describes a molecule made of 18 carbon atoms, 16 hydrogen atoms, 4 nitrogen atoms and 3 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 × 1864.28%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 164.79%1.008 × 16 = 16.128 g/mol
- N Nitrogen × 416.66%14.007 × 4 = 56.028 g/mol
- O Oxygen × 314.27%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H16N4O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 197 of 197 compounds
![3-[[2-(1,2,4-Triazolo[4,3-a]pyridin-3-yl)-8-quinolinyl]oxy]-1,2-propanediol chemical structure, C18H16N4O3, CAS 1209779-41-8](/s/QROPNMPPKCMQAY-UHFFFAOYSA-N.svg)
3-[[2-(1,2,4-Triazolo[4,3-a]pyridin-3-yl)-8-quinolinyl]oxy]-1,2-propanediol
CAS 1209779-41-8C18H16N4O3
2-Oxo-N-(2-(pyrrolidin-1-yl)pyrimidin-5-yl)-2H-chromene-3-carboxamide
CAS 1396746-42-1C18H16N4O3
![2-(7-(2-Methoxyethoxy)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-ol chemical structure, C18H16N4O3, CAS 1208864-20-3](/s/SETJHBISTGDOHI-UHFFFAOYSA-N.svg)
2-(7-(2-Methoxyethoxy)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-ol
CAS 1208864-20-3C18H16N4O3
![N-(1-Methyl-6-oxo-4-phenyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-b]pyridin-3-yl)furan-2-carboxamide chemical structure, C18H16N4O3, CAS 1209674-36-1](/s/OWZODSHERNJEIH-UHFFFAOYSA-N.svg)
N-(1-Methyl-6-oxo-4-phenyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-b]pyridin-3-yl)furan-2-carboxamide
CAS 1209674-36-1C18H16N4O3
N-(3-Acetamidophenyl)-1-methyl-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxamide
CAS 899984-12-4C18H16N4O3
1-(4-Ethoxyphenyl)-4-oxo-N-(pyridin-3-yl)-1,4-dihydropyridazine-3-carboxamide
CAS 897840-11-8C18H16N4O3
![2-Propynamide, N-[1-(3-nitro-2-pyridinyl)-3-pyrrolidinyl]-3-phenyl- chemical structure, C18H16N4O3, CAS 833452-24-7](/s/ADWYRVYGKZBLKQ-UHFFFAOYSA-N.svg)
2-Propynamide, N-[1-(3-nitro-2-pyridinyl)-3-pyrrolidinyl]-3-phenyl-
CAS 833452-24-7C18H16N4O3
N-(Furan-2-ylmethyl)-2-(2-(5-methyl-1,3,4-oxadiazol-2-yl)-1H-indol-1-yl)acetamide
CAS 955618-50-5C18H16N4O3
![N-[3-(Acetylamino)phenyl]-2-(1-oxophthalazin-2(1H)-yl)acetamide chemical structure, C18H16N4O3, CAS 1062393-28-5](/s/VUIBZDWLDZRSEK-UHFFFAOYSA-N.svg)
N-[3-(Acetylamino)phenyl]-2-(1-oxophthalazin-2(1H)-yl)acetamide
CAS 1062393-28-5C18H16N4O3
![N-(4-Carbamoylphenyl)-6-cyclopropyl-3-methyl[1,2]oxazolo[5,4-b]pyridine-4-carboxamide chemical structure, C18H16N4O3, CAS 1190295-48-7](/s/ZAWGQJPUTDYZQA-UHFFFAOYSA-N.svg)
N-(4-Carbamoylphenyl)-6-cyclopropyl-3-methyl[1,2]oxazolo[5,4-b]pyridine-4-carboxamide
CAS 1190295-48-7C18H16N4O3
![4-{[3-(4-Oxoquinazolin-3(4H)-yl)propanoyl]amino}benzamide chemical structure, C18H16N4O3, CAS 1144450-59-8](/s/MICOJCLFQZNUMU-UHFFFAOYSA-N.svg)
4-{[3-(4-Oxoquinazolin-3(4H)-yl)propanoyl]amino}benzamide
CAS 1144450-59-8C18H16N4O3
N1-benzyl-N2-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)oxalamide
CAS 946290-69-3C18H16N4O3
![N-[(5-Methylfuran-2-yl)methyl]-2-{4-oxo-3H,4H,5H-pyrimido[5,4-b]indol-3-yl}acetamide chemical structure, C18H16N4O3, CAS 1105226-83-2](/s/ZYYMYXKWTGSRFV-UHFFFAOYSA-N.svg)
N-[(5-Methylfuran-2-yl)methyl]-2-{4-oxo-3H,4H,5H-pyrimido[5,4-b]indol-3-yl}acetamide
CAS 1105226-83-2C18H16N4O3
![4-[(3-Methyl-6-phenyl[1,2]oxazolo[5,4-b]pyridin-4-yl)carbonyl]piperazin-2-one chemical structure, C18H16N4O3, CAS 1179486-92-0](/s/KXZFQCXXJWIZAX-UHFFFAOYSA-N.svg)
4-[(3-Methyl-6-phenyl[1,2]oxazolo[5,4-b]pyridin-4-yl)carbonyl]piperazin-2-one
CAS 1179486-92-0C18H16N4O3
![N-[3-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl]-3-nitrobenzamide chemical structure, C18H16N4O3, CAS 1171335-43-5](/s/LVQCOEYDORJEEY-UHFFFAOYSA-N.svg)
N-[3-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl]-3-nitrobenzamide
CAS 1171335-43-5C18H16N4O3
![7-(3,4-Dimethoxybenzyl)pyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one chemical structure, C18H16N4O3, CAS 1209650-60-1](/s/KSQFZHXOFIHYCC-UHFFFAOYSA-N.svg)
7-(3,4-Dimethoxybenzyl)pyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one
CAS 1209650-60-1C18H16N4O3
2-(3-(3-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl)-N-(pyridin-4-yl)acetamide
CAS 1224155-47-8C18H16N4O3
2-(3-(4-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl)-N-(pyridin-4-yl)acetamide
CAS 1232808-83-1C18H16N4O3
2-(3-(4-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl)-N-(pyridin-2-yl)acetamide
CAS 1246042-70-5C18H16N4O3
N-(6-Methoxypyridin-3-yl)-2-(6-oxo-3-phenylpyridazin-1(6H)-yl)acetamide
CAS 1282122-88-6C18H16N4O3
![4-{[(3-Methyl-2-oxoquinoxalin-1(2H)-yl)acetyl]amino}benzamide chemical structure, C18H16N4O3, CAS 1374546-15-2](/s/NCAQLXPXQPHYSN-UHFFFAOYSA-N.svg)
4-{[(3-Methyl-2-oxoquinoxalin-1(2H)-yl)acetyl]amino}benzamide
CAS 1374546-15-2C18H16N4O3
![2-[(9-Oxo-1,2,3,9-tetrahydropyrrolo[2,1-b]quinazolin-7-yl)oxy]-N-(pyridin-3-yl)acetamide chemical structure, C18H16N4O3, CAS 1435906-15-2](/s/GEPGMFRPMMQLAD-UHFFFAOYSA-N.svg)
2-[(9-Oxo-1,2,3,9-tetrahydropyrrolo[2,1-b]quinazolin-7-yl)oxy]-N-(pyridin-3-yl)acetamide
CAS 1435906-15-2C18H16N4O3
![N-((1-Methyl-5-(pyridin-4-yl)-1H-pyrazol-3-yl)methyl)benzo[d][1,3]dioxole-5-carboxamide chemical structure, C18H16N4O3, CAS 1421469-41-1](/s/GKKVOPLPXOTZQZ-UHFFFAOYSA-N.svg)
N-((1-Methyl-5-(pyridin-4-yl)-1H-pyrazol-3-yl)methyl)benzo[d][1,3]dioxole-5-carboxamide
CAS 1421469-41-1C18H16N4O3
![N-(2-(3-(Pyridin-2-yl)-1H-pyrazol-1-yl)ethyl)benzo[d][1,3]dioxole-5-carboxamide chemical structure, C18H16N4O3, CAS 1448133-99-0](/s/TWXZXQDIUKUPPH-UHFFFAOYSA-N.svg)
N-(2-(3-(Pyridin-2-yl)-1H-pyrazol-1-yl)ethyl)benzo[d][1,3]dioxole-5-carboxamide
CAS 1448133-99-0C18H16N4O3
- [(6-Methylpyridin-2-yl)methyl][(5-nitro-1,3-benzoxazol-2-yl)methyl](prop-2-yn-1-yl)amine1423714-21-9C18H16N4O3
- N-[Cyano-(2-methylphenyl)methyl]-3-[3-(furan-3-yl)-1,2,4-oxadiazol-5-yl]propanamide1385328-17-5C18H16N4O3
- 11-(2H-1,3-Benzodioxole-5-carbonyl)-4-methyl-2,3,7,11-tetraazatricyclo[7.4.0.0^{2,6}]trideca-1(9),3,5,7-tetraene1797560-73-6C18H16N4O3
- N-[Cyano(2-methoxyphenyl)methyl]-5-[(1H-imidazol-1-yl)methyl]furan-2-carboxamide1444298-92-3C18H16N4O3
- (E)-3-(Furan-2-yl)-N-(2-(6-(furan-2-yl)-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)acrylamide1798974-69-2C18H16N4O3
- N-(1-((2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)methyl)-1H-pyrazol-4-yl)nicotinamide1797721-91-5C18H16N4O3
- N-(1-((2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)methyl)-1H-pyrazol-4-yl)isonicotinamide1797159-37-5C18H16N4O3
- N-(1-((2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)methyl)-1H-pyrazol-4-yl)picolinamide1788557-48-1C18H16N4O3
- N-(2-(2-(Pyridin-2-yl)-1H-imidazol-1-yl)ethyl)benzo[d][1,3]dioxole-5-carboxamide2034586-38-2C18H16N4O3
- 5-(6-Methoxypyridine-3-carbonyl)-1,5,9-triazatricyclo[8.4.0.0^{3,8}]tetradeca-3(8),9,11,13-tetraen-2-one2034531-20-7C18H16N4O3
- N-((3-(2-Oxo-1,2-dihydropyridin-4-yl)-1,2,4-oxadiazol-5-yl)methyl)-1-phenylcyclopropanecarboxamide2034281-11-1C18H16N4O3
- 3-(2-Oxo-2-(3-(pyridin-3-yloxy)azetidin-1-yl)ethyl)quinazolin-4(3H)-one1903224-43-0C18H16N4O3
- N-(1-Phenyl-2-(2H-1,2,3-triazol-2-yl)ethyl)benzo[d][1,3]dioxole-5-carboxamide2034559-03-8C18H16N4O3
- 2-Methyl-N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)imidazo[1,2-a]pyridine-3-carboxamide2034323-29-8C18H16N4O3
- 1-Methyl-N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)-1H-indazole-3-carboxamide2034272-68-7C18H16N4O3
- (Z)-N-((3-(5-Cyclopropylisoxazol-3-yl)-1,2,4-oxadiazol-5-yl)methyl)-3-phenylacrylamide1904646-38-3C18H16N4O3
- N-((5-(1-Methyl-1H-pyrazol-4-yl)pyridin-3-yl)methyl)benzo[d][1,3]dioxole-5-carboxamide2034335-43-6C18H16N4O3
- N-((5-(1-Methyl-1H-pyrazol-5-yl)pyridin-3-yl)methyl)benzo[d][1,3]dioxole-5-carboxamide2034225-49-3C18H16N4O3
- N-((6-(1-Methyl-1H-pyrazol-4-yl)pyridin-3-yl)methyl)benzo[d][1,3]dioxole-5-carboxamide2034521-97-4C18H16N4O3
- (5-(Pyridin-3-yl)isoxazol-3-yl)(3-(pyridin-4-yloxy)pyrrolidin-1-yl)methanone2034575-05-6C18H16N4O3
- 5-(3-(1,2,4-Oxadiazol-3-yl)-4-phenylpyrrolidine-1-carbonyl)pyridin-2(1H)-one2034350-20-2C18H16N4O3
- 4-Acetamido-N-((3-(furan-2-yl)pyrazin-2-yl)methyl)benzamide2034300-35-9C18H16N4O3
- N-(2-((3-Cyclopropyl-1,2,4-oxadiazol-5-yl)methyl)phenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide2034401-56-2C18H16N4O3
- 3-(3-(1-Benzyl-5-oxopyrrolidin-3-yl)-1,2,4-oxadiazol-5-yl)pyridin-2(1H)-one1170977-76-0C18H16N4O3
- 2-(2-Formylphenoxy)-N-[(6-imidazol-1-ylpyridin-3-yl)methyl]acetamide2224475-29-8C18H16N4O3
- (Z)-N-((3-(2-Oxo-1,2-dihydropyridin-3-yl)-1,2,4-oxadiazol-5-yl)methyl)-3-(o-tolyl)acrylamide2035008-13-8C18H16N4O3
- 2-(2-Amino-4-ethyl-6-phenylpyrimidin-5-yl)-5-nitrophenol42902-09-0C18H16N4O3
- N-(1-Cyano-1-cyclopropylethyl)-2-{6-oxo-8-oxa-3,5-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2(7),3,10,12-pentaen-5-yl}acetamide849457-55-2C18H16N4O3
- N-[4-Ethyl-5-(2-hydroxyphenyl)-6-phenylpyrimidin-2-yl]nitramide53511-39-0C18H16N4O3
- N-[(Z)-1,3-Benzodioxol-5-ylmethylideneamino]-2,7-dimethylimidazo[1,2-a]pyridine-3-carboxamide352555-85-2C18H16N4O3
- N-[5-(4-Methylphenyl)-1H-1,2,4-triazol-3-yl]-2,3-dihydro-1,4-benzodioxine-2-carboxamide925548-42-1C18H16N4O3
- 4-Amino-3-quinolinecarboxylic acid 2-(4-methoxybenzoyl)hydrazide1018151-23-9C18H16N4O3
- N-Benzyl-1-(4-nitrobenzyl)-1H-imidazole-4-carboxamide1351771-70-4C18H16N4O3
- 1-(3-((3-Nitropyridin-2-yl)amino)pyrrolidin-1-yl)-3-phenylprop-2-yn-1-one833452-25-8C18H16N4O3
- N-(2-Oxo-2H-chromen-3-yl)-6-(pyrrolidin-1-yl)pyridazine-3-carboxamide1396872-28-8C18H16N4O3
- N-((1-Methyl-5-(pyridin-2-yl)-1H-pyrazol-3-yl)methyl)benzo[d][1,3]dioxole-5-carboxamide1421442-56-9C18H16N4O3
- N-(1-Cyanocyclobutyl)-6-(furan-2-yl)-N,3-dimethyl-[1,2]oxazolo[5,4-b]pyridine-4-carboxamide1444112-51-9C18H16N4O3
- N-(2-Oxo-2H-chromen-3-yl)-6-(pyrrolidin-1-yl)pyrimidine-4-carboxamide2034283-55-9C18H16N4O3
- (E)-2-Methyl-N-((3-(2-oxo-1,2-dihydropyridin-4-yl)-1,2,4-oxadiazol-5-yl)methyl)-3-phenylacrylamide2035004-16-9C18H16N4O3
- 2-{[(2-Methoxyphenyl)methyl]amino}-4-(pyridin-4-yl)pyrimidine-5-carboxylic acid1775327-25-7C18H16N4O3
- (Z)-1-(3-(5-(Furan-2-yl)-1,2,4-oxadiazol-3-yl)pyrrolidin-1-yl)-3-(pyridin-3-yl)prop-2-en-1-one2035004-55-6C18H16N4O3
- (Z)-N-(2-(2,4-Dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)ethyl)-3-phenylacrylamide2035003-42-8C18H16N4O3
- 3-(3-(5-Oxo-1-(m-tolyl)pyrrolidin-3-yl)-1,2,4-oxadiazol-5-yl)pyridin-2(1H)-one1172019-27-0C18H16N4O3
- 2-(4-Formylphenoxy)-N-[(6-imidazol-1-yl-3-pyridinyl)methyl]acetamide2248844-71-3C18H16N4O3
- 5-[1-Methyl-7,8-bis(methyloxy)-3H-pyrazolo[3,4-c]isoquinolin-5-yl]pyridin-2-ol838855-10-0C18H16N4O3
- [2-(Pyrazine-2-carbonyl)-1,2,3,4-tetrahydro-pyrido[4,3-b]indol-5-yl]-acetic acid866459-42-9C18H16N4O3
- 1H-Pyrazole-4-carboxamide, 3,5-dimethyl-1-(4-nitrophenyl)-N-phenyl-61261-91-4C18H16N4O3
- 2-Butoxy-6-(2H-tetrazol-5-yl)-9H-xanthen-9-one89217-10-7C18H16N4O3
- N-[Cyano(2,3-dimethoxyphenyl)methyl]imidazo[1,2-a]pyridine-8-carboxamide1333996-47-6C18H16N4O3
- 3-Amino-N-(2-methoxyphenyl)-6-phenoxy-pyrazine-2-carboxamide1349686-63-0C18H16N4O3
- N'-[(Phenylcarbamoyl)oxy][(quinolin-8-yl)oxy]ethanimidamide88758-70-7C18H16N4O3
- Phenyl (3-carbamoyl-4-methyl-1-phenyl-1H-pyrazol-5-yl)carbamate1414572-14-7C18H16N4O3
- Benzyl (1-(6-methylpyridazin-3-yl)-2-oxo-1,2-dihydropyridin-3-yl)carbamate1797435-84-7C18H16N4O3
- 6-Cyano-N-[1-(2-methoxyphenyl)-2-oxopyrrolidin-3-yl]pyridine-3-carboxamide2223750-94-3C18H16N4O3
- N-[(1-Benzyl-1H-1,2,3-triazol-4-yl)methyl]-2H-1,3-benzodioxole-5-carboxamide2379978-53-5C18H16N4O3
- N-{[1-Methyl-3-(pyridin-4-yl)-1H-pyrazol-5-yl]methyl}-2H-1,3-benzodioxole-5-carboxamide2309746-21-0C18H16N4O3
- N-{[1-Methyl-3-(pyridin-2-yl)-1H-pyrazol-5-yl]methyl}-2H-1,3-benzodioxole-5-carboxamide2319722-71-7C18H16N4O3
- 2-[1-(5-Methyl-1,2-oxazole-3-carbonyl)azetidin-3-yl]-6-phenyl-2,3-dihydropyridazin-3-one2380086-52-0C18H16N4O3
- 2-Cyclopropyl-N-(2,3-dihydro-1,4-benzodioxin-6-yl)imidazo[1,2-b]pyridazine-6-carboxamide2548985-75-5C18H16N4O3
- 3-Benzyl-6-(benzylamino)-5-nitrosopyrimidine-2,4(1H,3H)-dione5770-24-1C18H16N4O3
- N'-(1-Ethyl-6-nitroquinolin-2(1H)-ylidene)benzohydrazide29969-60-6C18H16N4O3
- 1-(2,3-Dihydro-1,4-benzodioxine-2-carbonyl)-3-{[1,2,4]triazolo[4,3-a]pyridin-3-yl}azetidine2877632-03-4C18H16N4O3
- 1-Pyrrolidineacetamide, 2,5-dioxo-N-[4-[(1E)-2-phenyldiazenyl]phenyl]-1321810-31-4C18H16N4O3
- 1-Benzamido-2-(4-methoxyphenyl)cyclopropane-1-carbonyl azide62567-69-5C18H16N4O3
- 3-[[4-(5-Methoxy-3-pyridinyl)pyrimidin-2-yl]amino]-4-methylbenzoic acid1229182-85-7C18H16N4O3
- N-[(3R)-1-(3-Nitropyridin-2-yl)pyrrolidin-3-yl]-3-phenylprop-2-ynamide833452-32-7C18H16N4O3
- N-[(3S)-1-(3-Nitropyridin-2-yl)pyrrolidin-3-yl]-3-phenylprop-2-ynamide833452-31-6C18H16N4O3
- 2-(4-(Dimethylamino)styryl)-6-nitroquinazolin-4(1H)-one63441-07-6C18H16N4O3
- Phenyl 4-(6-(methylamino)pyrimidin-4-yloxy)phenylcarbamate1186467-87-7C18H16N4O3
- (9H-Fluoren-9-yl)methyl N-[3-(hydroxymethyl)-1H-1,2,4-triazol-5-yl]carbamate2764004-11-5C18H16N4O3
- 5-Ethoxy-N-(imino(pyridin-2-yl)methyl)-2-phenyloxazole-4-carboxamide88584-28-5C18H16N4O3
- (2Z)-N-{[3-(5-Cyclopropyl-1,2-oxazol-3-yl)-1,2,4-oxadiazol-5-yl]methyl}-3-phenylprop-2-enamideC18H16N4O3
- (2Z)-3-(2-Methylphenyl)-N-{[3-(2-oxo-1,2-dihydropyridin-3-yl)-1,2,4-oxadiazol-5-yl]methyl}prop-2-enamideC18H16N4O3
Frequently asked questions
What is the molar mass of C18H16N4O3?
The molar mass of C18H16N4O3 is 336.35 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms, 4 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 336.1222 Da.
How many compounds have the formula C18H16N4O3?
CompoundList lists 197 compounds with the molecular formula C18H16N4O3, including 3-[[2-(1,2,4-Triazolo[4,3-a]pyridin-3-yl)-8-quinolinyl]oxy]-1,2-propanediol, 2-Oxo-N-(2-(pyrrolidin-1-yl)pyrimidin-5-yl)-2H-chromene-3-carboxamide, 2-(7-(2-Methoxyethoxy)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-ol. 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 C18H16N4O3?
C18H16N4O3 has a degree of unsaturation of 13. 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.