Molecular formula
C18H18N4O3
319 compounds have this formula on CompoundList.
- Molar mass
- 338.37g/mol
- Monoisotopic mass
- 338.1379Da
- Atoms
- 43
- Elements
- 4
- Rings plus double bonds
- 12
The formula C18H18N4O3 describes a molecule made of 18 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 × 1863.89%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 185.36%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 416.56%14.007 × 4 = 56.028 g/mol
- O Oxygen × 314.18%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H18N4O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 300 of 319 compounds
N-(3-Cyano-4-isopropoxybenzoyloxy)-3-methylisonicotinimidamide
CAS 1307231-29-3C18H18N4O3
3-((1-(2-(Benzyloxy)acetyl)pyrrolidin-3-yl)oxy)pyrazine-2-carbonitrile
CAS 2034450-55-8C18H18N4O3
(1H-Indol-2-yl)(3-((3-methoxypyrazin-2-yl)oxy)pyrrolidin-1-yl)methanone
CAS 2034283-46-8C18H18N4O3
(1H-Indol-6-yl)(3-((3-methoxypyrazin-2-yl)oxy)pyrrolidin-1-yl)methanone
CAS 2034398-99-5C18H18N4O3
(6-Methoxy-1H-indol-2-yl)(3-(pyridazin-3-yloxy)pyrrolidin-1-yl)methanone
CAS 2034367-15-0C18H18N4O3
(1H-Indol-6-yl)(3-((6-methoxypyridazin-3-yl)oxy)pyrrolidin-1-yl)methanone
CAS 2034223-90-8C18H18N4O3
![2-(Benzo[d]isoxazol-3-yl)-1-(3-(pyridazin-3-yloxy)piperidin-1-yl)ethanone chemical structure, C18H18N4O3, CAS 2034437-64-2](/s/PUESPGFWHKFFMN-UHFFFAOYSA-N.svg)
2-(Benzo[d]isoxazol-3-yl)-1-(3-(pyridazin-3-yloxy)piperidin-1-yl)ethanone
CAS 2034437-64-2C18H18N4O3
![2-(Benzo[d]isoxazol-3-yl)-1-(3-(pyrazin-2-yloxy)piperidin-1-yl)ethanone chemical structure, C18H18N4O3, CAS 2034251-82-4](/s/TZMFQMBEUYMGIC-UHFFFAOYSA-N.svg)
2-(Benzo[d]isoxazol-3-yl)-1-(3-(pyrazin-2-yloxy)piperidin-1-yl)ethanone
CAS 2034251-82-4C18H18N4O3
4-(3-((3-Methoxypyrazin-2-yl)oxy)piperidine-1-carbonyl)benzonitrile
CAS 2034232-07-8C18H18N4O3
4-(3-((6-Methoxypyrazin-2-yl)oxy)piperidine-1-carbonyl)benzonitrile
CAS 2034481-43-9C18H18N4O3
2-(4,5-Dimethyl-6-oxopyrimidin-1(6H)-yl)-N-((2-(furan-2-yl)pyridin-4-yl)methyl)acetamide
CAS 2034266-71-0C18H18N4O3
3-(1-(1H-Pyrrole-2-carbonyl)piperidin-4-yl)quinazoline-2,4(1H,3H)-dione
CAS 2034370-75-5C18H18N4O3
(E)-3-(2-Methoxyphenyl)-N-((3-(1-methyl-1H-pyrrol-2-yl)-1,2,4-oxadiazol-5-yl)methyl)acrylamide
CAS 2035007-15-7C18H18N4O3
![N-((1H-Benzo[d]imidazol-2-yl)methyl)-2-((tetrahydrofuran-3-yl)oxy)nicotinamide chemical structure, C18H18N4O3, CAS 2034491-33-1](/s/PPGYLHCZJUTATL-UHFFFAOYSA-N.svg)
N-((1H-Benzo[d]imidazol-2-yl)methyl)-2-((tetrahydrofuran-3-yl)oxy)nicotinamide
CAS 2034491-33-1C18H18N4O3
![N-((1H-Benzo[d]imidazol-2-yl)methyl)-2-((tetrahydrofuran-3-yl)oxy)isonicotinamide chemical structure, C18H18N4O3, CAS 2034387-98-7](/s/PJMHZERERASUTI-UHFFFAOYSA-N.svg)
N-((1H-Benzo[d]imidazol-2-yl)methyl)-2-((tetrahydrofuran-3-yl)oxy)isonicotinamide
CAS 2034387-98-7C18H18N4O3
![2-(Cyclopentyloxy)-N-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isonicotinamide chemical structure, C18H18N4O3, CAS 2034318-25-5](/s/FGPRADHGHNYDBO-UHFFFAOYSA-N.svg)
2-(Cyclopentyloxy)-N-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)isonicotinamide
CAS 2034318-25-5C18H18N4O3
![5-Acetamido-N-(2-methoxybenzyl)pyrazolo[1,5-a]pyridine-3-carboxamide chemical structure, C18H18N4O3, CAS 2034544-65-3](/s/XPBCCNCQZUMQES-UHFFFAOYSA-N.svg)
5-Acetamido-N-(2-methoxybenzyl)pyrazolo[1,5-a]pyridine-3-carboxamide
CAS 2034544-65-3C18H18N4O3
![N-(2-(2,4-Dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)ethyl)-2-(o-tolyl)acetamide chemical structure, C18H18N4O3, CAS 2034372-82-0](/s/NPRTTZCPRPCGQQ-UHFFFAOYSA-N.svg)
N-(2-(2,4-Dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)ethyl)-2-(o-tolyl)acetamide
CAS 2034372-82-0C18H18N4O3
![N-(2-(4-Oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)-2-phenoxypropanamide chemical structure, C18H18N4O3, CAS 2034324-90-6](/s/JWUSTTXMYPEEJZ-UHFFFAOYSA-N.svg)
N-(2-(4-Oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)-2-phenoxypropanamide
CAS 2034324-90-6C18H18N4O3
N-((3-(2-Oxo-1,2-dihydropyridin-4-yl)-1,2,4-oxadiazol-5-yl)methyl)-4-phenylbutanamide
CAS 2034280-92-5C18H18N4O3
![2-Benzyl-4-(5-methyl-1,2,4-oxadiazol-3-yl)-5,6,7,8-tetrahydro-1H-pyrido[1,2-c]pyrimidine-1,3(2H)-dione chemical structure, C18H18N4O3, CAS 1775346-02-5](/s/AYOBSEKLVUPHMT-UHFFFAOYSA-N.svg)
2-Benzyl-4-(5-methyl-1,2,4-oxadiazol-3-yl)-5,6,7,8-tetrahydro-1H-pyrido[1,2-c]pyrimidine-1,3(2H)-dione
CAS 1775346-02-5C18H18N4O3
N-(2-(4-Methoxy-6-methyl-2-oxopyridin-1(2H)-yl)ethyl)quinoxaline-2-carboxamide
CAS 1903738-92-0C18H18N4O3
(3-(3-Methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)(5-methylisoxazol-3-yl)methanone
CAS 1904027-66-2C18H18N4O3
![N-{[3-(6-Ethoxypyridin-3-yl)-1,2,4-oxadiazol-5-yl]methyl}-2-phenylacetamide chemical structure, C18H18N4O3, CAS 1903305-74-7](/s/LZMJRTDCIKLRBG-UHFFFAOYSA-N.svg)
N-{[3-(6-Ethoxypyridin-3-yl)-1,2,4-oxadiazol-5-yl]methyl}-2-phenylacetamide
CAS 1903305-74-7C18H18N4O3
- P'-Hydroxymesocarb175296-79-4C18H18N4O3
- N-(2,3-Dihydro-1H-inden-5-yl)-1-[2-(furan-2-yl)-2-hydroxyethyl]-1H-1,2,3-triazole-4-carboxamide2034534-53-5C18H18N4O3
- (2,3-Dihydro-1H-benzo[d]imidazo[1,2-a]imidazol-1-yl)(2-(2-methoxyethoxy)pyridin-4-yl)methanone2034316-25-9C18H18N4O3
- N1-benzyl-N2-(2-(furan-2-yl)-2-(1H-pyrazol-1-yl)ethyl)oxalamide2034594-11-9C18H18N4O3
- N1-(2-(furan-2-yl)-2-(1H-pyrazol-1-yl)ethyl)-N2-(m-tolyl)oxalamide2034567-62-7C18H18N4O3
- N-((3-(Furan-2-yl)pyrazin-2-yl)methyl)-6-isopropoxynicotinamide2034569-86-1C18H18N4O3
- N-(2-(2,4-Dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)ethyl)-3-phenylpropanamide2034372-28-4C18H18N4O3
- (3,5-Dimethylisoxazol-4-yl)(3-(5-phenyl-1,2,4-oxadiazol-3-yl)pyrrolidin-1-yl)methanone2034353-28-9C18H18N4O3
- 3-(2-Oxo-2-(3,4,8,9-tetrahydro-1H-cyclopenta[3,4]pyrazolo[1,5-a]pyrazin-2(7H)-yl)ethyl)benzo[d]oxazol-2(3H)-one2034509-63-0C18H18N4O3
- 3-(2-(2-Cyclopropyl-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)-2-oxoethyl)benzo[d]oxazol-2(3H)-one2034507-62-3C18H18N4O3
- 3-(1-(5-Methylisoxazole-3-carbonyl)piperidin-3-yl)quinazolin-4(3H)-one2034462-66-1C18H18N4O3
- 3-(1-(5-Methylisoxazole-4-carbonyl)piperidin-3-yl)quinazolin-4(3H)-one2034517-71-8C18H18N4O3
- 1-(2-Ethoxyphenyl)-3-{[3-(furan-2-yl)pyrazin-2-yl]methyl}urea2034363-06-7C18H18N4O3
- 1-((3-(Furan-2-yl)pyrazin-2-yl)methyl)-3-(4-methoxybenzyl)urea2034570-25-5C18H18N4O3
- N-(2-((3-Cyclopropyl-1,2,4-oxadiazol-5-yl)methyl)phenyl)-3,5-dimethylisoxazole-4-carboxamide2034455-10-0C18H18N4O3
- (3-(4-Cyclopropyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)(7-methoxybenzofuran-2-yl)methanone2097858-66-5C18H18N4O3
- 2-(4,5-Dimethyl-6-oxopyrimidin-1(6H)-yl)-N-((5-(furan-2-yl)pyridin-3-yl)methyl)acetamide2097902-32-2C18H18N4O3
- 2-(1,2-Benzoxazol-3-yl)-1-[3-(pyrimidin-4-yloxy)piperidin-1-yl]ethan-1-one2034331-52-5C18H18N4O3
- N-((3-(Furan-3-yl)pyrazin-2-yl)methyl)-6-isopropoxynicotinamide2034316-47-5C18H18N4O3
- 1-(2-Ethoxyphenyl)-3-{[3-(furan-3-yl)pyrazin-2-yl]methyl}urea2034423-61-3C18H18N4O3
- 1-[2-Hydroxy-2-(4-methoxyphenyl)ethyl]-N-phenyl-1H-1,2,4-triazole-3-carboxamide2108823-09-0C18H18N4O3
- (6-Methoxy-1H-indol-2-yl)(3-(pyrimidin-2-yloxy)pyrrolidin-1-yl)methanone2034497-23-7C18H18N4O3
- 2-(4,5-Dimethyl-6-oxo-1,6-dihydropyrimidin-1-yl)-N-{[5-(furan-3-yl)pyridin-3-yl]methyl}acetamide2309604-37-1C18H18N4O3
- 6-Benzyl-3-((2,5-dimethoxyphenyl)amino)-1,2,4-triazin-5(4H)-one898640-21-6C18H18N4O3
- N-((3-(2-Oxo-1,2-dihydropyridin-3-yl)-1,2,4-oxadiazol-5-yl)methyl)-2-phenylbutanamide2034319-03-2C18H18N4O3
- JH295 (hydrate)2714087-26-8C18H18N4O3
- N-[4-[(Phenylcarbamoylamino)carbamoyl]phenyl]cyclopropanecarboxamide443669-46-3C18H18N4O3
- [4-[(E)-2-(1-Ethenyl-5-nitroimidazol-2-yl)ethenyl]phenyl]-pyrrolidin-1-ylmethanone41552-69-6C18H18N4O3
- Cinnamic acid, alpha-(p-acetamidobenzamido)-, hydrazide28271-96-7C18H18N4O3
- 1-(2-Methoxyphenyl)-3-[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]urea898119-91-0C18H18N4O3
- 4-(3-Acetamidoanilino)-6,7-dimethoxyquinazoline153437-74-2C18H18N4O3
- N-(2-Cyanophenyl)-2-[4-(furan-2-carbonyl)piperazin-1-yl]acetamide1083198-99-5C18H18N4O3
- (7-Propionyl-5-pyridin-3-yl-1H-benzoimidazol-2-yl)-carbamic acid ethyl ester636581-54-9C18H18N4O3
- Phenol, 3-[[[5-(2,4-dimethoxy-5-pyrimidinyl)-3-pyridinyl]amino]methyl]-875147-46-9C18H18N4O3
- Allyl 8-(2-methoxyphenyl)-4,7-dimethylpyrazolo[5,1-c][1,2,4]triazine-3-carboxylate896669-26-4C18H18N4O3
- N-(Cyanomethyl)-6-(2,5-dimethylfuran-3-yl)-N-ethyl-3-methyl-[1,2]oxazolo[5,4-b]pyridine-4-carboxamide1428028-70-9C18H18N4O3
- 2-(3,5-Dimethylisoxazol-4-yl)-1-(3-(3-phenyl-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethanone1251579-39-1C18H18N4O3
- 1 suppliers1-(1-(2-Oxo-1,2-dihydropyridine-3-carbonyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one1325619-04-2C18H18N4O3
- 4-(Acetylamino)-3-(2-amino-4-ethyl-1H-benzimidazol-1-yl)benzoic acid197088-85-0C18H18N4O3
- 4-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)butanamide1351698-35-5C18H18N4O3
- Ethyl 2-(4-(benzyloxy)-2-(1H-pyrazol-1-yl)pyrimidin-5-yl)acetate1343461-21-1C18H18N4O3
- 3-(4-Methoxyphenyl)-N-(6-methoxypyridin-3-yl)-1-methyl-1H-pyrazole-5-carboxamide1630901-03-9C18H18N4O3
- 6-Methoxy-N-(3-oxo-2,3,5,6,7,8-hexahydrocinnolin-6-yl)-1H-indole-2-carboxamide1904310-18-4C18H18N4O3
- 1-({1-[3-(1H-Pyrazol-1-yl)benzoyl]azetidin-3-yl}methyl)pyrrolidine-2,5-dione2097926-20-8C18H18N4O3
- N-{4-[3-Oxo-4-(pyridin-3-yl)piperazine-1-carbonyl]phenyl}acetamide2097923-46-9C18H18N4O3
- 4-[(2S,4R)-4-Methoxy-2-(pyridin-3-yloxymethyl)pyrrolidine-1-carbonyl]pyridine-2-carbonitrile2223241-66-3C18H18N4O3
- 1-Cyclopentyl-4-({4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl}methyl)-1,2,3,4-tetrahydropyrazine-2,3-dione2548993-25-3C18H18N4O3
- 2-(3,4-Dimethoxybenzyl)-8,9-dimethylfuro[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine900274-54-6C18H18N4O3
- 2-Cyano-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-3-(1,3,5-trimethyl-1H-pyrazol-4-yl)prop-2-enamide957020-28-9C18H18N4O3
- Cyclopenta(4,5)pyrido(1,2-a)pyrimidine-3-carboxylic acid, 4,7,8,9-tetrahydro-10-cyano-9-((dimethylamino)methylene)-4-oxo-, ethyl ester93587-48-5C18H18N4O3
- Benzyl 2-(7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidin-5-yl)pyrrolidine-1-carboxylate954220-29-2C18H18N4O3
- N-(3,4-Dimethoxyphenyl)-1-(4-methylphenyl)-1H-1,2,4-triazole-3-carboxamide1034736-40-7C18H18N4O3
- Ethyl 4-(1-aminonaphthalen-4-yloxy)-2-aminopyridin-3-ylcarbamate1160825-92-2C18H18N4O3
- 2-(5-(6-Methyl-[1,3]dioxolo[4,5-g]quinolin-8-yl)-5,6-dihydropyrrolo[3,4-c]pyrazol-1(4H)-yl)ethan-1-ol1332163-05-9C18H18N4O3
- N-(6-Methoxypyridin-3-yl)-3-(4-methyl-3-oxo-3,4-dihydroquinoxalin-2-yl)propanamide1374547-53-1C18H18N4O3
- Methyl 3-(2-amino-8-ethyl-4-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-6-yl)benzoate934494-87-8C18H18N4O3
- 2-[4-(Morpholin-4-ylmethyl)phenyl]-3H-imidazo[4,5-b]pyridine-7-carboxylic acid1416037-22-3C18H18N4O3
- 2-Cyano-N-{4-[2-(dimethylamino)acetamido]phenyl}-3-(furan-2-yl)prop-2-enamide1428117-59-2C18H18N4O3
- N-{1-[(5-Phenyl-1,2,4-oxadiazol-3-yl)methyl]pyrrolidin-3-yl}-3-furamide1986428-67-4C18H18N4O3
- 4-[3-[(1-Oxopropyl)amino]phenyl]-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylic acid ethyl ester1443236-03-0C18H18N4O3
- Methyl 3-(2-morpholinopyridin-4-yl)-1H-indazole-5-carboxylate1627194-18-6C18H18N4O3
- (Z)-2-Cyano-N-[4-[[2-(dimethylamino)acetyl]amino]phenyl]-3-(furan-2-yl)prop-2-enamideC18H18N4O3
- 6-(4-(2-Oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)picolinic acid2039536-27-9C18H18N4O3
- N-{3-[(Morpholin-4-yl)methyl]-1,2-benzoxazol-5-yl}pyridine-2-carboxamide2379953-69-0C18H18N4O3
- N-{3-[(Morpholin-4-yl)methyl]-1,2-benzoxazol-5-yl}pyridine-4-carboxamide2380069-75-8C18H18N4O3
- N-{3-[(Morpholin-4-yl)methyl]-1,2-benzoxazol-5-yl}pyridine-3-carboxamide2379978-21-7C18H18N4O3
- 3-(2-Cyanoethyl)-3-[(furan-2-yl)methyl]-1-[3-(2-oxoazetidin-1-yl)phenyl]urea2361691-29-2C18H18N4O3
- 2-Benzyl-5-(4-methoxypyrimidin-2-yl)-octahydropyrrolo[3,4-c]pyrrole-1,3-dione2415600-43-8C18H18N4O3
- N-{[5-(1-Methyl-1H-pyrazol-5-yl)furan-2-yl]methyl}-N'-(3-methylphenyl)ethanediamide2415500-79-5C18H18N4O3
- 2-Cyclopropyl-N-(3,5-dimethoxyphenyl)imidazo[1,2-b]pyridazine-6-carboxamide2548995-15-7C18H18N4O3
- 3-(2-Hydroxypropyl)-7-phenyl-1-(2-propen-1-yl)-2,4(1H,3H)-pteridinedione4573-67-5C18H18N4O3
- Benzoic acid, (4-hydroxy-1,2-butanediylidene)dihydrazide32588-38-8C18H18N4O3
- 3'-(2,4-Diaminopyrimidin-5-yl)-3,5-dimethoxy-[1,1'-biphenyl]-4-ol2567503-09-5C18H18N4O3
- N-(Aza(2-oxoindolin-3-ylidene)methyl)-2-(3-(dimethylamino)phenoxy)ethanamide1024579-29-0C18H18N4O3
- 3,3',3''-[2-(2-Cyanoethoxy)-4,6-dihydroxybenzene-1,3,5-triyl]tripropanenitrile88421-74-3C18H18N4O3
- 2-(4-(2-Oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidin-1-yl)nicotinic acid1049605-55-1C18H18N4O3
Frequently asked questions
What is the molar mass of C18H18N4O3?
The molar mass of C18H18N4O3 is 338.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 338.1379 Da.
How many compounds have the formula C18H18N4O3?
CompoundList lists 319 compounds with the molecular formula C18H18N4O3, including N-(3-Cyano-4-isopropoxybenzoyloxy)-3-methylisonicotinimidamide, 3-((1-(2-(Benzyloxy)acetyl)pyrrolidin-3-yl)oxy)pyrazine-2-carbonitrile, (1H-Indol-2-yl)(3-((3-methoxypyrazin-2-yl)oxy)pyrrolidin-1-yl)methanone. 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 C18H18N4O3?
C18H18N4O3 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.