Molecular formula
C18H19N3O4
349 compounds have this formula on CompoundList.
- Molar mass
- 341.37g/mol
- Monoisotopic mass
- 341.1376Da
- Atoms
- 44
- Elements
- 4
- Rings plus double bonds
- 11
The formula C18H19N3O4 describes a molecule made of 18 carbon atoms, 19 hydrogen atoms, 3 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 × 1863.33%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 195.61%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 312.31%14.007 × 3 = 42.021 g/mol
- O Oxygen × 418.75%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C18H19N3O4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 349 compounds
(13aS)-11,12,13,13a-Tetrahydro-7-methoxy-9-oxo-9H-imidazo(1,5-a)pyrrolo(2,1-C)(1,4)benzodiazepine-1-carboxylic acid ethyl ester
CAS 130477-52-0C18H19N3O4
10-(3-(Dimethylamino)propyl)-2-nitrodibenz(b,f)(1,4)-oxazepin-11(10H)-one
CAS 47439-36-1C18H19N3O4
2-(4-Nitrophenoxy)-N-(4-pyrrolidin-1-ylphenyl)acetamide
CAS 431933-28-7C18H19N3O4
![3-[(1-Benzyl-1H-pyrazol-4-yl)carbamoyl]-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid chemical structure, C18H19N3O4, CAS 1164550-79-1](/s/SLVLJBWSJIGQQU-UHFFFAOYSA-N.svg)
3-[(1-Benzyl-1H-pyrazol-4-yl)carbamoyl]-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid
CAS 1164550-79-1C18H19N3O4
N-(4-Acetamidophenyl)-1-(furan-2-ylmethyl)-5-oxopyrrolidine-3-carboxamide
CAS 847734-53-6C18H19N3O4
4-(Morpholin-4-ylmethyl)-N-(3-nitrophenyl)benzamide
CAS 591731-56-5C18H19N3O4
![Ethyl 4-(4-methoxyphenoxy)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate chemical structure, C18H19N3O4, CAS 174842-34-3](/s/ZXFKIPRYQOGRCX-UHFFFAOYSA-N.svg)
Ethyl 4-(4-methoxyphenoxy)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate
CAS 174842-34-3C18H19N3O4
![N-[4-(2-Methylpropylcarbamoyl)phenyl]-2-nitrobenzamide chemical structure, C18H19N3O4, CAS 305358-94-5](/s/GEJMVQBKCCRMPX-UHFFFAOYSA-N.svg)
N-[4-(2-Methylpropylcarbamoyl)phenyl]-2-nitrobenzamide
CAS 305358-94-5C18H19N3O4
![3-[2-(1,3-Dioxoisoindol-2-yl)ethyl]-1,3-diazaspiro[4.5]decane-2,4-dione chemical structure, C18H19N3O4, CAS 20000-08-2](/s/UCLSWAVVLGEKCW-UHFFFAOYSA-N.svg)
3-[2-(1,3-Dioxoisoindol-2-yl)ethyl]-1,3-diazaspiro[4.5]decane-2,4-dione
CAS 20000-08-2C18H19N3O4
3,5-Dimethoxy-N-(7-methyl-5-oxo-5,6,7,8-tetrahydroquinazolin-2-yl)benzamide
CAS 877793-41-4C18H19N3O4
![N'-[4-(4-Acetylphenoxy)butanoyl]pyridine-2-carbohydrazide chemical structure, C18H19N3O4, CAS 923790-19-6](/s/CYEQGHSOYYFZLY-UHFFFAOYSA-N.svg)
N'-[4-(4-Acetylphenoxy)butanoyl]pyridine-2-carbohydrazide
CAS 923790-19-6C18H19N3O4
![2-{[(4-Nitrophenyl)acetyl]amino}-N-(propan-2-yl)benzamide chemical structure, C18H19N3O4, CAS 827617-60-7](/s/VDDQQQJQNOXLRO-UHFFFAOYSA-N.svg)
2-{[(4-Nitrophenyl)acetyl]amino}-N-(propan-2-yl)benzamide
CAS 827617-60-7C18H19N3O4
![[2-[N-(2-Cyanoethyl)-2-methoxyanilino]-2-oxoethyl] 1-methylpyrrole-2-carboxylate chemical structure, C18H19N3O4, CAS 783312-01-6](/s/GBDVMTDEIMQVOF-UHFFFAOYSA-N.svg)
[2-[N-(2-Cyanoethyl)-2-methoxyanilino]-2-oxoethyl] 1-methylpyrrole-2-carboxylate
CAS 783312-01-6C18H19N3O4
Methyl 2-morpholin-4-yl-5-(pyridine-3-carbonylamino)benzoate
CAS 767347-83-1C18H19N3O4
1-(4-Methoxybenzoyl)-4-(4-nitrophenyl)piperazine
CAS 329938-93-4C18H19N3O4
![N-[4-({2-[(4-Methoxyphenyl)acetyl]hydrazino}carbonyl)phenyl]acetamide chemical structure, C18H19N3O4, CAS 315673-62-2](/s/QYHIMSNNPAORRX-UHFFFAOYSA-N.svg)
N-[4-({2-[(4-Methoxyphenyl)acetyl]hydrazino}carbonyl)phenyl]acetamide
CAS 315673-62-2C18H19N3O4
![N-[3-(Butanoylamino)phenyl]-2-methyl-3-nitrobenzamide chemical structure, C18H19N3O4, CAS 432541-91-8](/s/JNQXLYILGZKFCS-UHFFFAOYSA-N.svg)
N-[3-(Butanoylamino)phenyl]-2-methyl-3-nitrobenzamide
CAS 432541-91-8C18H19N3O4
3-(Isobutyrylamino)-N-(2-methyl-4-nitrophenyl)benzamide
CAS 599189-59-0C18H19N3O4
(4-(2-Methoxyphenyl)piperazin-1-yl)(3-nitrophenyl)methanone
CAS 21092-01-3C18H19N3O4
2-(4-Nitrophenoxy)-N-(2-pyrrolidin-1-ylphenyl)acetamide
CAS 530140-67-1C18H19N3O4
4-(Isobutyrylamino)-N-(2-methyl-4-nitrophenyl)benzamide
CAS 701225-63-0C18H19N3O4
![(E)-N-[2-[(2Z)-2-[1-(Furan-2-yl)ethylidene]hydrazinyl]-2-oxoethyl]-3-(2-methoxyphenyl)prop-2-enamide chemical structure, C18H19N3O4, CAS 330570-30-4](/s/WYNDJTBNUFDNJE-FGKKRVJFSA-N.svg)
(E)-N-[2-[(2Z)-2-[1-(Furan-2-yl)ethylidene]hydrazinyl]-2-oxoethyl]-3-(2-methoxyphenyl)prop-2-enamide
CAS 330570-30-4C18H19N3O4
Methyl 4-morpholin-4-yl-3-(pyridine-3-carbonylamino)benzoate
CAS 895093-23-9C18H19N3O4
![[2-Oxo-2-(4-phenylpiperazin-1-yl)ethyl] 1-oxidopyridin-1-ium-3-carboxylate chemical structure, C18H19N3O4, CAS 731782-96-0](/s/BQXUTGHVPXDGKN-UHFFFAOYSA-N.svg)
[2-Oxo-2-(4-phenylpiperazin-1-yl)ethyl] 1-oxidopyridin-1-ium-3-carboxylate
CAS 731782-96-0C18H19N3O4
- 3-(4-Methoxyphenyl)-2-[2-(4-methoxyphenyl)hydrazono]-3-oxopropanal O-methyloxime338956-62-0C18H19N3O4
- 2-[2-(3,5-Dimethoxyphenyl)hydrazono]-3-oxo-3-phenylpropanal O-methyloxime338956-37-9C18H19N3O4
- N-(2-(2-Benzylidenehydrazino)-2-oxoethyl)-3,4-dimethoxybenzamide324014-12-2C18H19N3O4
- N-[4-[4-(Furan-2-carbonyl)piperazine-1-carbonyl]phenyl]acetamide710976-65-1C18H19N3O4
- [2-(2,2-Dimethyl-3-oxo-4H-quinoxalin-1-yl)-2-oxoethyl] 1-methylpyrrole-2-carboxylate733794-08-6C18H19N3O4
- N-[2-(2,6-Dimethylanilino)-2-oxoethyl]-2-(2-nitrophenyl)acetamide852822-76-5C18H19N3O4
- N-Ethyl-N-[[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-2-methylfuran-3-carboxamide878432-51-0C18H19N3O4
- 4-Nitro-N-[3-oxo-3-(2-phenylethylamino)propyl]benzamide878609-84-8C18H19N3O4
- (E)-N-(2-(2-(4-Methoxybenzylidene)hydrazinyl)-2-oxoethyl)-2-phenoxyacetamide324014-81-5C18H19N3O4
- 2-(2-(4-Ethoxybenzylidene)hydrazino)-N-(2-methoxyphenyl)-2-oxoacetamide352011-65-5C18H19N3O4
- 1-(2-(Dimethylamino)ethyl)-4-(furan-2-carbonyl)-3-hydroxy-5-(pyridin-4-yl)-1H-pyrrol-2(5H)-one378214-31-4C18H19N3O4
- N-[7-(3,4-Dimethoxyphenyl)-5-oxo-5,6,7,8-tetrahydroquinazolin-2-yl]acetamide374766-24-2C18H19N3O4
- 2-(2-(3,4-Dimethoxybenzylidene)hydrazino)-N-(2-methylphenyl)-2-oxoacetamide359730-47-5C18H19N3O4
- N'-(3-Nitrobenzylidene)-2-(4-propylphenoxy)acetohydrazide302910-04-9C18H19N3O4
- 4-(2-Methoxyphenyl)piperazinyl 4-nitrophenyl ketone21091-99-6C18H19N3O4
- 2-(2-(2-Ethoxybenzylidene)hydrazino)-N-(4-methoxyphenyl)-2-oxoacetamide359810-25-6C18H19N3O4
- 2-(2-(4-Ethoxybenzylidene)hydrazino)-N-(4-methoxyphenyl)-2-oxoacetamide357267-65-3C18H19N3O4
- 2-(2-(4-Ethoxybenzylidene)hydrazino)-N-(3-methoxyphenyl)-2-oxoacetamide357267-50-6C18H19N3O4
- 2-(2-(2-Ethoxybenzylidene)hydrazino)-N-(3-methoxyphenyl)-2-oxoacetamide359810-23-4C18H19N3O4
- 2-(2-(3,4-Dimethoxybenzylidene)hydrazino)-N-(4-methylphenyl)-2-oxoacetamide357207-78-4C18H19N3O4
- 2-(2-(2,3-Dimethoxybenzylidene)hydrazino)-N-(4-methylphenyl)-2-oxoacetamide357207-77-3C18H19N3O4
- 2-(2-(2-Ethoxybenzylidene)hydrazino)-N-(2-methoxyphenyl)-2-oxoacetamide359810-21-2C18H19N3O4
- N-(4-Ethylphenyl)-2-(2-(2-hydroxy-3-methoxybenzylidene)hydrazino)-2-oxoacetamide765310-53-0C18H19N3O4
- N-(4-Ethylphenyl)-2-(2-(4-hydroxy-3-methoxybenzylidene)hydrazino)-2-oxoacetamide643739-50-8C18H19N3O4
- N-(4-Ethylphenyl)-2-(2-(2-hydroxy-5-methoxybenzylidene)hydrazino)-2-oxoacetamide769146-88-5C18H19N3O4
- (2-Methoxyphenyl)[4-(4-nitrophenyl)piperazin-1-yl]methanone328006-09-3C18H19N3O4
- 1,3-Dimethyl-5-(5-methylfuran-2-yl)-7,8,9,10-tetrahydropyrimido[4,5-b]quinoline-2,4,6(1H,3H,5H)-trione537008-33-6C18H19N3O4
- N,N-Diethyl-4-[(4-nitrobenzoyl)amino]benzamide351335-13-2C18H19N3O4
- N-(2-(2-(2-Hydroxy-5-methoxybenzylidene)hydrazino)-2-oxoethyl)-4-methylbenzamide769143-06-8C18H19N3O4
- 2-(2-(3-Ethoxy-4-hydroxybenzylidene)hydrazino)-N-(3-methylphenyl)-2-oxoacetamide641584-95-4C18H19N3O4
- (5R)-5-Ethyl-3-[6-(3-methoxy-4-methylphenoxy)-3-pyridinyl]-2,4-imidazolidinedione1311136-84-1C18H19N3O4
- N-(3,4-Dimethoxyphenyl)-6,7-dimethoxyquinazolin-4-amine202475-65-8C18H19N3O4
- Ethyl 2-{2-[(2-furylcarbonylamino)ethyl]benzimidazolyl}acetate919973-51-6C18H19N3O4
- 3,4,5-Trimethoxy-N-(1-methylbenzimidazol-2-yl)benzamide510765-60-3C18H19N3O4
- N1-(4-carbamoylphenyl)-N2-(2-methoxyphenethyl)oxalamide900001-03-8C18H19N3O4
- N-(1H-Benzimidazol-2-ylmethyl)-3,4,5-trimethoxybenzamide446832-46-8C18H19N3O4
- N-(2-{[(2-Nitrophenyl)acetyl]amino}phenyl)butanamide694523-00-7C18H19N3O4
- 5-(4-Methoxyphenyl)-1-(3,4,5-trimethoxyphenyl)-1H-1,2,3-triazole922721-43-5C18H19N3O4
- Asparagine, N-(4-acetylphenyl)-N2-(3-pyridinylmethyl)-1261351-48-7C18H19N3O4
- 2-(3-Cyano-4,6-dimethyl-2-oxopyridin-1(2H)-yl)-N-(3,5-dimethoxyphenyl)acetamide932338-25-5C18H19N3O4
- N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide933028-03-6C18H19N3O4
- N-(2H-1,3-Benzodioxol-5-yl)-2-(6-methyl-3-oxo-2,3,5,6,7,8-hexahydrocinnolin-2-yl)acetamide932997-79-0C18H19N3O4
- N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide933238-34-7C18H19N3O4
- N-(2-(6-Methoxy-3,4-dihydroisoquinolin-2(1H)-yl)-2-oxoethyl)-6-oxo-1,6-dihydropyridine-3-carboxamide1219906-53-2C18H19N3O4
- N-(3-Methoxyphenyl)-3-nitro-4-(pyrrolidin-1-yl)benzamide451506-83-5C18H19N3O4
- N-(4-Methoxy-3-(2-oxopyrrolidin-1-yl)phenyl)-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide1327233-19-1C18H19N3O4
- N-(3-(1H-Imidazol-1-yl)propyl)-2-(7-methoxy-2-oxo-2H-chromen-4-yl)acetamide919761-77-6C18H19N3O4
- 2-[3-(1,3-Benzodioxol-5-yl)-6-oxopyridazin-1-yl]-N-cyclopentylacetamide941930-25-2C18H19N3O4
- Ethyl 3-(1-ethyl-3-methyl-1H-pyrazole-5-amido)-1-benzofuran-2-carboxylate1172777-52-4C18H19N3O4
- N-[1-Methyl-5-(morpholine-4-carbonyl)-2-oxo-1,2-dihydropyridin-3-yl]benzamide1105209-98-0C18H19N3O4
- N'-(1-Acetyl-3,4-dihydro-2H-quinolin-7-yl)-N-(furan-2-ylmethyl)oxamide898439-65-1C18H19N3O4
- 4-Cyclopropaneamido-N-{2-[(furan-2-yl)formamido]ethyl}benzamide1040673-89-9C18H19N3O4
- (3-(5-(Benzo[d][1,3]dioxol-5-yl)-1,3,4-oxadiazol-2-yl)piperidin-1-yl)(cyclopropyl)methanone1172522-24-5C18H19N3O4
- N'-Benzoyl-N-tert-butyl-2-nitrobenzohydrazide112225-86-2C18H19N3O4
- {[(3-Oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetyl]amino}(phenyl)acetic acid1350987-97-1C18H19N3O4
- 1-(1H-Benzo[d]imidazol-2-yl)-4-(3-methoxypropoxy)-3-methylpyridin-1-ium-2-carboxylate1807988-36-8C18H19N3O4
- 1-{2-Nitrobenzoyl}-4-(2-methoxyphenyl)piperazine331845-94-4C18H19N3O4
- N-(2,4-Dimethoxyphenyl)-2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamide1009720-05-1C18H19N3O4
- 1-(2-(Dimethylamino)ethyl)-4-(furan-2-carbonyl)-3-hydroxy-5-(pyridin-2-yl)-1H-pyrrol-2(5H)-one618877-78-4C18H19N3O4
- 5-{[(4-Hydroxyphenyl)amino]methylidene}-1-(3-methoxypropyl)-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile883278-86-2C18H19N3O4
- 2-(1-((Benzyloxy)carbonyl)piperidin-4-yl)pyrimidine-5-carboxylic acid1447606-17-8C18H19N3O4
- (4-Methoxy-3-nitrophenyl)-(4-phenylpiperazin-1-yl)methanone333350-17-7C18H19N3O4
- N-(3,5-Dimethoxyphenyl)-6,7-dimethoxyquinazolin-4-amine202475-51-2C18H19N3O4
- (5-Nitrofuran-2-yl)-[4-[(E)-3-phenylprop-2-enyl]piperazin-1-yl]methanone312594-14-2C18H19N3O4
- 4-Methyl-N-(4-morpholin-4-ylphenyl)-3-nitrobenzamide331417-63-1C18H19N3O4
- 5-(2,4-Dioxo-1H-quinazolin-3-yl)-N-(furan-2-ylmethyl)pentanamide688774-18-7C18H19N3O4
- N1-(2,4-dimethoxyphenyl)indoline-1,2-dicarboxamide1048664-29-4C18H19N3O4
- 1'-Benzyl-3,7-diazaspiro[bicyclo[3.3.1]nonane-9,4'-piperidine]-2,4,6,8-tetraone1176981-06-8C18H19N3O4
- 2-Methyl-N-(2-morpholin-4-ylphenyl)-3-nitrobenzamide528862-33-1C18H19N3O4
- 4-[2-(4-Methoxybenzoyl)hydrazino]-4-oxo-N-phenylbutanamide315671-41-1C18H19N3O4
- 3,5-Pyridinedicarboxylic acid, 2,6-dimethyl-, 3-ethyl ester, 5-(2-benzoylhydrazide)380344-37-6C18H19N3O4
- 1-(2-Ethylbenzimidazol-1-yl)-3-(4-nitrophenoxy)propan-2-ol294861-67-9C18H19N3O4
- N1-(4-acetamidophenyl)-N2-(4-methoxybenzyl)oxalamide838901-61-4C18H19N3O4
- N-[7-(2,4-Dimethoxyphenyl)-5-oxo-5,6,7,8-tetrahydroquinazolin-2-yl]acetamide858766-63-9C18H19N3O4
- 2-[2-[(Z)-[[2-(4-Methylanilino)acetyl]hydrazinylidene]methyl]phenoxy]acetic acid5546-61-2C18H19N3O4
- (E)-N-(2-(2-(3,4-Dimethoxybenzylidene)hydrazinyl)-2-oxoethyl)benzamide137205-04-0C18H19N3O4
Frequently asked questions
What is the molar mass of C18H19N3O4?
The molar mass of C18H19N3O4 is 341.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 341.1376 Da.
How many compounds have the formula C18H19N3O4?
CompoundList lists 349 compounds with the molecular formula C18H19N3O4, including (13aS)-11,12,13,13a-Tetrahydro-7-methoxy-9-oxo-9H-imidazo(1,5-a)pyrrolo(2,1-C)(1,4)benzodiazepine-1-carboxylic acid ethyl ester, 10-(3-(Dimethylamino)propyl)-2-nitrodibenz(b,f)(1,4)-oxazepin-11(10H)-one, 2-(4-Nitrophenoxy)-N-(4-pyrrolidin-1-ylphenyl)acetamide. 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 C18H19N3O4?
C18H19N3O4 has a degree of unsaturation of 11. 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.