Molecular formula
C16H18N4O3
223 compounds have this formula on CompoundList.
- Molar mass
- 314.35g/mol
- Monoisotopic mass
- 317.1567Da
- Atoms
- 41
- Elements
- 4
- Rings plus double bonds
- 10
The formula C16H18N4O3 describes a molecule made of 16 carbon atoms, 18 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 × 1661.14%12.011 × 16 = 192.176 g/mol
- H Hydrogen × 185.77%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 417.82%14.007 × 4 = 56.028 g/mol
- O Oxygen × 315.27%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C16H18N4O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 223 compounds
(3-((6-Methoxypyrazin-2-yl)oxy)piperidin-1-yl)(pyridin-2-yl)methanone
CAS 2034580-94-2C16H18N4O3
5-Cyclopropyl-N-(2-methyl-3-oxo-2,3,5,6,7,8-hexahydrocinnolin-6-yl)isoxazole-3-carboxamide
CAS 2034320-12-0C16H18N4O3
2-Ethoxy-N-(3-oxo-2,3,5,6,7,8-hexahydrocinnolin-6-yl)nicotinamide
CAS 1903306-27-3C16H18N4O3
![3-(1-(Cyclopropanecarbonyl)piperidin-4-yl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione chemical structure, C16H18N4O3, CAS 2034425-39-1](/s/HXBHBQYALZQENP-UHFFFAOYSA-N.svg)
3-(1-(Cyclopropanecarbonyl)piperidin-4-yl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione
CAS 2034425-39-1C16H18N4O3
(E)-N-((4,6-Dimethoxy-1,3,5-triazin-2-yl)methyl)-3-(o-tolyl)acrylamide
CAS 2035022-27-4C16H18N4O3
![1-(2-((2H-1,2,3-Triazol-2-yl)methyl)pyrrolidin-1-yl)-2-(benzo[d][1,3]dioxol-5-yl)ethan-1-one chemical structure, C16H18N4O3, CAS 2177365-53-4](/s/DPVQGVRYELXWNG-UHFFFAOYSA-N.svg)
1-(2-((2H-1,2,3-Triazol-2-yl)methyl)pyrrolidin-1-yl)-2-(benzo[d][1,3]dioxol-5-yl)ethan-1-one
CAS 2177365-53-4C16H18N4O3
Ethyl 4-(3-((3-aminopyridin-4-yl)methyl)ureido)benzoate
CAS 2237266-66-7C16H18N4O3
![N-(1-Methoxypropan-2-yl)-1-methyl-4-oxo-1,4-dihydropyrido[1,2-a]pyrrolo[2,3-d]pyrimidine-2-carboxamide chemical structure, C16H18N4O3, CAS 864853-38-3](/s/NPQMWTRBPXAKRZ-UHFFFAOYSA-N.svg)
N-(1-Methoxypropan-2-yl)-1-methyl-4-oxo-1,4-dihydropyrido[1,2-a]pyrrolo[2,3-d]pyrimidine-2-carboxamide
CAS 864853-38-3C16H18N4O3
1-(1,3-Benzodioxol-5-ylmethyl)-4-(1H-pyrazol-3-ylcarbonyl)piperazine
CAS 1020715-63-2C16H18N4O3
3-(3,5-Dimethyl-1H-pyrazol-1-yl)-N-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)propanamide
CAS 1171799-91-9C16H18N4O3
![1-Butyl-5-phenyl-5,6-dihydropyrimido[4,5-d]pyrimidine-2,4,7(1H,3H,8H)-trione chemical structure, C16H18N4O3, CAS 1171660-13-1](/s/APWICSIDXCZQDH-UHFFFAOYSA-N.svg)
1-Butyl-5-phenyl-5,6-dihydropyrimido[4,5-d]pyrimidine-2,4,7(1H,3H,8H)-trione
CAS 1171660-13-1C16H18N4O3
N-(1-Cyano-1-cyclopropylethyl)-2-(5-nitro-2,3-dihydro-1H-indol-1-yl)acetamide
CAS 1258722-87-0C16H18N4O3
N-(4-Acetamidophenyl)-2-(3,4-dimethyl-6-oxopyridazin-1(6H)-yl)acetamide
CAS 1360243-35-1C16H18N4O3
4-(3-Hydroxyphenoxy)-N-pyrazin-2-ylpiperidine-1-carboxamide
CAS 1008774-54-6C16H18N4O3
(2-Methoxypyridin-3-yl)(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone
CAS 1448135-76-9C16H18N4O3
![N-[2-(Dimethylamino)-4,6-dimethylpyrimidin-5-yl]-2H-1,3-benzodioxole-5-carboxamide chemical structure, C16H18N4O3, CAS 1448037-24-8](/s/FJHURQALQVYZMH-UHFFFAOYSA-N.svg)
N-[2-(Dimethylamino)-4,6-dimethylpyrimidin-5-yl]-2H-1,3-benzodioxole-5-carboxamide
CAS 1448037-24-8C16H18N4O3
N-(1-Cyanocyclobutyl)-3-nitro-4-(pyrrolidin-1-yl)benzamide
CAS 1427993-45-0C16H18N4O3
N-(2-Oxo-2-((1-(tetrahydrofuran-3-yl)-1H-pyrazol-4-yl)amino)ethyl)benzamide
CAS 1797145-78-8C16H18N4O3
4-Acetamido-N-(1-(tetrahydrofuran-3-yl)-1H-pyrazol-4-yl)benzamide
CAS 1796947-68-6C16H18N4O3
![N'-Hydroxy-2-(4-methylbenzyl)-1,3-dioxo-1,2,3,5,6,7-hexahydropyrrolo[1,2-c]pyrimidine-4-carboximidamide chemical structure, C16H18N4O3, CAS 1786061-61-7](/s/XYMYXIMVNAQAJO-UHFFFAOYSA-N.svg)
N'-Hydroxy-2-(4-methylbenzyl)-1,3-dioxo-1,2,3,5,6,7-hexahydropyrrolo[1,2-c]pyrimidine-4-carboximidamide
CAS 1786061-61-7C16H18N4O3
![1-[8-(Pyrazine-2-carbonyl)-8-azabicyclo[3.2.1]octan-3-yl]pyrrolidine-2,5-dione chemical structure, C16H18N4O3, CAS 2058739-71-0](/s/NMGVTCUMMXECRC-UHFFFAOYSA-N.svg)
1-[8-(Pyrazine-2-carbonyl)-8-azabicyclo[3.2.1]octan-3-yl]pyrrolidine-2,5-dione
CAS 2058739-71-0C16H18N4O3
N-(1-Cyanocyclopentyl)-2-(6-nitro-2,3-dihydroindol-1-yl)acetamide
CAS 1645454-96-1C16H18N4O3
N-(1-Cyano-1-cyclopropylethyl)-2-(6-nitro-2,3-dihydroindol-1-yl)acetamide
CAS 1645354-07-9C16H18N4O3
2-Oxo-N-((1r,4r)-4-(pyrazin-2-yloxy)cyclohexyl)-1,2-dihydropyridine-3-carboxamide
CAS 2034255-14-4C16H18N4O3
- 2-Oxo-N-((1r,4r)-4-(pyrazin-2-yloxy)cyclohexyl)-1,2-dihydropyridine-4-carboxamide2034451-48-2C16H18N4O3
- 2-Oxo-N-((1r,4r)-4-(pyrimidin-2-yloxy)cyclohexyl)-1,2-dihydropyridine-3-carboxamide2034452-62-3C16H18N4O3
- 1-(3-((3-Methoxypyrazin-2-yl)oxy)pyrrolidin-1-yl)-2-(pyridin-3-yl)ethanone2034284-42-7C16H18N4O3
- (3-((3-Methoxypyrazin-2-yl)oxy)pyrrolidin-1-yl)(2-methylpyridin-3-yl)methanone2034579-10-5C16H18N4O3
- (3-(Pyridazin-3-yloxy)pyrrolidin-1-yl)(4,5,6,7-tetrahydrobenzo[d]isoxazol-3-yl)methanone2034336-09-7C16H18N4O3
- 1-Methyl-3-(3-((6-methylpyridazin-3-yl)oxy)pyrrolidine-1-carbonyl)pyridin-2(1H)-one2034247-23-7C16H18N4O3
- (2-Methoxypyridin-3-yl)(3-((6-methylpyridazin-3-yl)oxy)pyrrolidin-1-yl)methanone2034210-41-6C16H18N4O3
- (5-Cyclopropylisoxazol-3-yl)(3-((6-methylpyridazin-3-yl)oxy)pyrrolidin-1-yl)methanone2034482-23-8C16H18N4O3
- 1-(3-((6-Methoxypyridazin-3-yl)oxy)pyrrolidin-1-yl)-2-(pyridin-3-yl)ethanone2034248-67-2C16H18N4O3
- 1-Methyl-3-(3-(pyridazin-3-yloxy)piperidine-1-carbonyl)pyridin-2(1H)-one2034484-00-7C16H18N4O3
- 5-(3-((6-Methylpyridazin-3-yl)oxy)piperidine-1-carbonyl)pyridin-2(1H)-one2034225-83-5C16H18N4O3
- (5-Cyclopropylisoxazol-3-yl)(3-(pyrazin-2-yloxy)piperidin-1-yl)methanone2034252-14-5C16H18N4O3
- (3-((3-Methoxypyrazin-2-yl)oxy)piperidin-1-yl)(pyridin-4-yl)methanone2034232-03-4C16H18N4O3
- 1-(Benzo[d][1,3]dioxol-5-yl)-3-((4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-3-yl)methyl)urea2034266-41-4C16H18N4O3
- N-(3-Methoxyphenyl)-6-morpholinopyrimidine-4-carboxamide1901044-41-4C16H18N4O3
- N-((3-(1-Ethyl-1H-pyrrol-2-yl)-1,2,4-oxadiazol-5-yl)methyl)-2,5-dimethylfuran-3-carboxamide2034409-70-4C16H18N4O3
- 2-(2-(3-((6-Methylpyridin-2-yl)oxy)pyrrolidin-1-yl)-2-oxoethyl)pyridazin-3(2H)-one1903410-42-3C16H18N4O3
- 2-(2-(3-((5-Methylpyridin-2-yl)oxy)pyrrolidin-1-yl)-2-oxoethyl)pyridazin-3(2H)-one1903870-11-0C16H18N4O3
- Methyl (5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoyl)-l-prolinate1505491-22-4C16H18N4O3
- N-(4-Methylpyrimidin-2-yl)-6-((tetrahydrofuran-2-yl)methoxy)nicotinamide2034360-11-5C16H18N4O3
- 2-Methyl-6-(3-(pyridin-4-yloxy)piperidine-1-carbonyl)pyridazin-3(2H)-one2034432-86-3C16H18N4O3
- Methyl 4-[4-(2H-1,2,3-triazol-2-yl)piperidine-1-carbonyl]benzoate2202515-03-3C16H18N4O3
- Benzyl (2-(6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)-2-oxoethyl)carbamate2034545-59-8C16H18N4O3
- N-{2-[3-(1,2,4-Oxadiazol-3-yl)-4-phenylpyrrolidin-1-yl]-2-oxoethyl}acetamide2034374-45-1C16H18N4O3
- (2,4-Dimethoxyphenyl)(3-(pyrimidin-2-ylamino)azetidin-1-yl)methanone2320851-04-3C16H18N4O3
- 4-[3-(Pyridin-2-yloxy)-8-azabicyclo[3.2.1]octane-8-carbonyl]-2,3-dihydro-1H-imidazol-2-one2175979-00-5C16H18N4O3
- 1-(2-Methoxyethyl)-N-(2-oxo-1-phenylazetidin-3-yl)-1H-pyrazole-3-carboxamide1825295-64-4C16H18N4O3
- (2-Methoxypyridin-3-yl)(3-(pyrimidin-4-yloxy)piperidin-1-yl)methanone2034523-14-1C16H18N4O3
- 2-Hydroxy-N-(2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)ethyl)nicotinamide2034365-61-0C16H18N4O3
- 2-(3-Cyclopropyl-6-oxopyridazin-1(6H)-yl)-N-(4,5,6,7-tetrahydrobenzo[c]isoxazol-3-yl)acetamide2034535-97-0C16H18N4O3
- 5-(3-((2-Methylpyrimidin-4-yl)oxy)piperidine-1-carbonyl)pyridin-2(1H)-one2034473-08-8C16H18N4O3
- N-(2-(4-(Furan-2-yl)-3,5-dimethyl-1H-pyrazol-1-yl)ethyl)-5-methylisoxazole-3-carboxamide2034513-73-8C16H18N4O3
- 2-(3,5-Dimethylisoxazol-4-yl)-N-(2-(4-(furan-3-yl)-1H-pyrazol-1-yl)ethyl)acetamide2034288-67-8C16H18N4O3
- N-(2-(3-Cyclopropyl-6-oxopyridazin-1(6H)-yl)ethyl)-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide2034430-71-0C16H18N4O3
- N-{2-Oxo-2-[3-(quinoxalin-2-yloxy)pyrrolidin-1-yl]ethyl}acetamide2097916-42-0C16H18N4O3
- 4-[8-(Furan-2-carbonyl)-5H,6H,7H,8H-pyrido[2,3-d]pyrimidin-2-yl]morpholine2191214-07-8C16H18N4O3
- Furan-3-yl(2-morpholino-6,7-dihydropyrido[2,3-d]pyrimidin-8(5H)-yl)methanone2194907-75-8C16H18N4O3
- 1-((3-Ethyl-1,2,4-oxadiazol-5-yl)methyl)-3-propylquinazoline-2,4(1H,3H)-dione2309800-85-7C16H18N4O3
- N-(2-Hydroxyethyl)-4-(3-(pyridin-4-ylmethyl)ureido)benzamide2237266-61-2C16H18N4O3
- N-(2,6-Dioxopiperidin-3-yl)-N,1,2-trimethyl-1H-1,3-benzodiazole-6-carboxamide2154339-82-7C16H18N4O3
- Ethyl 4-(3-((2-aminopyridin-4-yl)methyl)ureido)benzoate2237266-62-3C16H18N4O3
- 4-[4-(1-Acetyl-4-piperidinyl)phenyl]-1H-1,2,3-triazole-5-carboxylic acid2641210-68-4C16H18N4O3
- 3-Isoxazolecarboxamide, 5-benzoyl-4-(4-methyl-1-piperazinyl)-647862-54-2C16H18N4O3
- Piperazine, 1-(5-methoxy-2-pyridinyl)-4-(4-nitrophenyl)-158399-63-4C16H18N4O3
- Piperazine, 1-(6-methoxy-3-pyridinyl)-4-(4-nitrophenyl)-158399-77-0C16H18N4O3
- N1-cyclopentyl-N2-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)oxalamide946298-42-6C16H18N4O3
- N-((3-Methyl-1,2,4-oxadiazol-5-yl)methyl)-5-oxo-1-(p-tolyl)pyrrolidine-3-carboxamide1234942-11-0C16H18N4O3
- 2-[3-(Morpholin-4-yl)-6-oxopyridazin-1(6H)-yl]-N-phenylacetamide1282123-59-4C16H18N4O3
- N-(4-Cyano-1-methylpiperidin-4-yl)-3-(3-nitrophenyl)prop-2-enamide1355936-97-8C16H18N4O3
- N-(4-Cyano-1-methylpiperidin-4-yl)-3-(2-nitrophenyl)prop-2-enamide1355939-35-3C16H18N4O3
- N-(1,5-Dimethyl-1H-pyrazol-3-yl)-4,7-dimethoxy-1H-indole-2-carboxamide1574480-86-6C16H18N4O3
- N-(1-Cyanocyclobutyl)-4-(cyclopropylamino)-N-methyl-3-nitrobenzamide1428060-01-8C16H18N4O3
- N-(1-Cyano-2,2-dimethylpropyl)-2-(5-nitro-1H-indol-3-yl)acetamide1444625-98-2C16H18N4O3
- N-Cyclopentyl-N-methyl-4-(3-nitrophenyl)-1H-imidazole-1-carboxamide1356960-85-4C16H18N4O3
- N-{4-[(4-Oxoazetidin-2-yl)oxy]phenyl}-1-(propan-2-yl)-1H-pyrazole-3-carboxamide2094908-21-9C16H18N4O3
- 4-{[1-(2-Methoxypyridine-3-carbonyl)pyrrolidin-3-yl]oxy}-2-methylpyrimidine2097890-64-5C16H18N4O3
- 2-Cyano-N-(3-ethoxypropyl)-3-(2-oxo-2,3-dihydro-1H-1,3-benzodiazol-5-yl)prop-2-enamide2094959-01-8C16H18N4O3
- (3aR,7aR)-2-(2-Cyanopyridine-4-carbonyl)-N-methyl-1,3,3a,4,6,7-hexahydropyrano[3,4-c]pyrrole-7a-carboxamide2223213-00-9C16H18N4O3
- Methyl 5-ethyl-7-(4-methoxyphenyl)-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate725217-20-9C16H18N4O3
- Methyl (E)-4-oxo-4-[2-(1-phenyltriazol-4-yl)propan-2-ylamino]but-2-enoate2411334-71-7C16H18N4O3
- Methyl (E)-4-[1-(5-methyl-1-pyridin-2-ylpyrazol-4-yl)ethylamino]-4-oxobut-2-enoate2411330-34-0C16H18N4O3
- Methyl (E)-4-[2-(4-methyl-5-phenyl-1,2,4-triazol-3-yl)ethylamino]-4-oxobut-2-enoate2411335-15-2C16H18N4O3
- Methyl (E)-4-[methyl-[[4-(1,2,4-triazol-1-ylmethyl)phenyl]methyl]amino]-4-oxobut-2-enoate2411333-20-3C16H18N4O3
- 1-(3,4-Methylenedioxybenzyl)-4-(5-hydroxy-2-pyrimidyl)piperazine50602-51-2C16H18N4O3
- (1-Butyl-1H-tetrazol-5-yl)methyl 2H-chromene-3-carboxylate1036079-05-6C16H18N4O3
- 1H-1,2,3-Triazole-4-carboxylic acid, 1-[[2,3-dihydro-5-methyl-2-(4-methylphenyl)-4-oxazolyl]methyl]-5-methyl-1325303-53-4C16H18N4O3
- Benzyl 4-(6-oxo-1,6-dihydropyridazin-3-yl)piperazine-1-carboxylate1204603-24-6C16H18N4O3
- 4,4'-Oxybis(N'-hydroxy-3-methylbenzene-1-carboximidamide)89446-97-9C16H18N4O3
- N-{2-[3-(3-Methyl-1,2,4-oxadiazol-5-yl)pyrrolidin-1-yl]-2-oxoethyl}benzamide2109305-45-3C16H18N4O3
- Ethyl 1-[2-oxo-2-(1,2,3,4-tetrahydroquinolin-1-yl)ethyl]-1H-1,2,3-triazole-4-carboxylate2098093-49-1C16H18N4O3
- 4-(4-Formyl-1H-1,2,3-triazol-1-yl)-1-piperidinecarboxylic acid phenylmethyl ester2064105-68-4C16H18N4O3
- Propanimidamide, N-(4-ethoxyphenyl)-2-((2-furanylmethylene)hydrazono)-N'-hydroxy-126389-58-0C16H18N4O3
- 3-(Diethylamino)-6-[2-(4-nitrophenyl)hydrazinylidene]cyclohexa-2,4-dien-1-one72375-53-2C16H18N4O3
- 6-Methyl-3-(2-oxo-2-{3-[(pyridin-3-yloxy)methyl]azetidin-1-yl}ethyl)-3,4-dihydropyrimidin-4-one2379951-10-5C16H18N4O3
- 4-(Cyclohexylamino)-5-nitro-2-phenyl-3(2H)-pyridazinone40175-89-1C16H18N4O3
- 3-[5-(3-Aminoazetidin-1-yl)-1-oxo-2,3-dihydro-1H-isoindol-2-yl]piperidine-2,6-dione2703765-16-4C16H18N4O3
Frequently asked questions
What is the molar mass of C16H18N4O3?
The molar mass of C16H18N4O3 is 314.35 g/mol, calculated from standard atomic weights for 16 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 317.1567 Da.
How many compounds have the formula C16H18N4O3?
CompoundList lists 223 compounds with the molecular formula C16H18N4O3, including (3-((6-Methoxypyrazin-2-yl)oxy)piperidin-1-yl)(pyridin-2-yl)methanone, 5-Cyclopropyl-N-(2-methyl-3-oxo-2,3,5,6,7,8-hexahydrocinnolin-6-yl)isoxazole-3-carboxamide, 2-Ethoxy-N-(3-oxo-2,3,5,6,7,8-hexahydrocinnolin-6-yl)nicotinamide. 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 C16H18N4O3?
C16H18N4O3 has a degree of unsaturation of 10. 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.