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 101 to 200 of 349 compounds
![1-[4-(Acetylamino)phenyl]-N-(furan-2-ylmethyl)-5-oxopyrrolidine-3-carboxamide chemical structure, C18H19N3O4, CAS 905181-15-9](/s/ZWAPYTKYXHZCSG-UHFFFAOYSA-N.svg)
1-[4-(Acetylamino)phenyl]-N-(furan-2-ylmethyl)-5-oxopyrrolidine-3-carboxamide
CAS 905181-15-9C18H19N3O4
![4-[2-(2,4-Dihydroxybenzylidene)hydrazino]-N-(2-methylphenyl)-4-oxobutanamide chemical structure, C18H19N3O4, CAS 325998-34-3](/s/MNJKBXCNMPCPCA-YBFXNURJSA-N.svg)
4-[2-(2,4-Dihydroxybenzylidene)hydrazino]-N-(2-methylphenyl)-4-oxobutanamide
CAS 325998-34-3C18H19N3O4
N-(2,4-Dimethoxyphenyl)-6,7-dimethoxyquinazolin-4-amine
CAS 477855-17-7C18H19N3O4
![N-[[3-(4-Methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-N-propan-2-ylfuran-2-carboxamide chemical structure, C18H19N3O4, CAS 727362-32-5](/s/YOOYGBQHIFNVOB-UHFFFAOYSA-N.svg)
N-[[3-(4-Methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-N-propan-2-ylfuran-2-carboxamide
CAS 727362-32-5C18H19N3O4
2-Morpholin-4-yl-N-(2-nitrophenyl)-2-phenylacetamide
CAS 838893-28-0C18H19N3O4
N,N-Diethyl-4(3,4-dicarboxyphenylazo)aniline
CAS 61776-90-7C18H19N3O4
4-(4-Benzyl-1-piperazinyl)-3-nitrobenzoic acid
CAS 312921-86-1C18H19N3O4
![2-[1-(Furan-2-ylcarbonyl)-3-oxopiperazin-2-yl]-N-(2-methylphenyl)acetamide chemical structure, C18H19N3O4, CAS 1025388-53-7](/s/SJOYQSYYMQDGRE-UHFFFAOYSA-N.svg)
2-[1-(Furan-2-ylcarbonyl)-3-oxopiperazin-2-yl]-N-(2-methylphenyl)acetamide
CAS 1025388-53-7C18H19N3O4
1-(2,4-Dimethoxyphenyl)-5-oxo-N-(pyridin-2-yl)pyrrolidine-3-carboxamide
CAS 924970-18-3C18H19N3O4
N1-(furan-2-ylmethyl)-N2-(4-methyl-3-(2-oxopyrrolidin-1-yl)phenyl)oxalamide
CAS 941934-97-0C18H19N3O4
Methyl 4-(2-(4-oxo-5,6,7,8-tetrahydroquinazolin-3(4H)-yl)acetamido)benzoate
CAS 1251604-49-5C18H19N3O4
2-Methyl-N-(3,4,5-trimethoxyphenyl)-1H-benzimidazole-6-carboxamide
CAS 1574477-13-6C18H19N3O4
N1-(2-(furan-3-yl)ethyl)-N2-(3-(2-oxopyrrolidin-1-yl)phenyl)oxalamide
CAS 1428380-24-8C18H19N3O4
2-((4-(2-(3,5-Dimethylisoxazol-4-yl)acetamido)but-2-yn-1-yl)oxy)benzamide
CAS 1448132-72-6C18H19N3O4
![N-(3,4-Dimethylphenyl)-2-[2-(2-hydroxy-3-methoxybenzylidene)hydrazino]-2-oxoacetamide chemical structure, C18H19N3O4, CAS 352333-66-5](/s/XGZOVPXJVMSMJJ-VXLYETTFSA-N.svg)
N-(3,4-Dimethylphenyl)-2-[2-(2-hydroxy-3-methoxybenzylidene)hydrazino]-2-oxoacetamide
CAS 352333-66-5C18H19N3O4
Diethyl 4,4'-(1e)-triaz-1-ene-1,3-diyldibenzoate
CAS 7334-36-3C18H19N3O4
N-(2-Methyl-3-nitrophenyl)-3-(2-methylpropanoylamino)benzamide
CAS 599190-46-2C18H19N3O4
N-(2-Methyl-5-nitrophenyl)-4-(2-methylpropanoylamino)benzamide
CAS 701228-36-6C18H19N3O4
![N-[(1Z)-1-(3,4-Dimethoxyphenyl)-3-hydrazinyl-3-oxoprop-1-en-2-yl]benzamide chemical structure, C18H19N3O4, CAS 15046-26-1](/s/YAUHISKSBVIFMT-UVTDQMKNSA-N.svg)
N-[(1Z)-1-(3,4-Dimethoxyphenyl)-3-hydrazinyl-3-oxoprop-1-en-2-yl]benzamide
CAS 15046-26-1C18H19N3O4
![Methyl 1,3,7-trimethyl-2,4-dioxo-5-phenyl-1,2,3,4,5,8-hexahydropyrido[2,3-d]pyrimidine-6-carboxylate chemical structure, C18H19N3O4, CAS 371232-60-9](/s/RZUVKOYTYVGEPR-UHFFFAOYSA-N.svg)
Methyl 1,3,7-trimethyl-2,4-dioxo-5-phenyl-1,2,3,4,5,8-hexahydropyrido[2,3-d]pyrimidine-6-carboxylate
CAS 371232-60-9C18H19N3O4
N-(2-Methylphenyl)-2-morpholin-4-yl-5-nitrobenzamide
CAS 838615-89-7C18H19N3O4
Methyl 3-nitro-4-(4-phenylpiperazin-1-yl)benzoate
CAS 65639-58-9C18H19N3O4
![N-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]-3-pentoxybenzamide chemical structure, C18H19N3O4, CAS 862808-98-8](/s/APFXJWGEKQGRAA-UHFFFAOYSA-N.svg)
N-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]-3-pentoxybenzamide
CAS 862808-98-8C18H19N3O4
(E)-N-(2-(2-(2,5-Dimethoxybenzylidene)hydrazinyl)-2-oxoethyl)benzamide
CAS 391877-10-4C18H19N3O4
- (E)-3-Methoxy-N-(2-(2-(2-methoxybenzylidene)hydrazinyl)-2-oxoethyl)benzamide391877-91-1C18H19N3O4
- 1-(2,4-Dimethoxyphenyl)-5-oxo-N-(pyridin-3-yl)pyrrolidine-3-carboxamide924964-81-8C18H19N3O4
- 2-(2-Hydroxyethyl)-8-(tetrahydrofuran-2-ylmethyl)pyrido[4,3-b][1,6]naphthyridine-1,9(2H,8H)-dione1158388-48-7C18H19N3O4
- 2-(3,5-Dimethylisoxazol-4-yl)-N-(4-(methoxymethyl)-2-oxo-1,2-dihydroquinolin-7-yl)acetamide1251633-99-4C18H19N3O4
- 3,5-Dimethoxy-N-[2-(methoxymethyl)-1H-benzimidazol-5-yl]benzamide1224169-96-3C18H19N3O4
- 3,4,5-Trimethoxy-N-(2-methyl-1H-benzimidazol-5-yl)benzamide1224168-65-3C18H19N3O4
- (S)-3-Amino-2-oxo-6-phenoxy-3,4-dihydroquinolin-1(2H)-yl dimethylcarbamate1258545-28-6C18H19N3O4
- Methyl 7-(1-methyl-2-oxo-1,2-dihydropyridine-3-carboxamido)-3,4-dihydroisoquinoline-2(1H)-carboxylate1448058-65-8C18H19N3O4
- Methyl 4-[4-(pyrazin-2-yloxy)piperidine-1-carbonyl]benzoate1448046-49-8C18H19N3O4
- Methyl 4-[4-(pyridazin-3-yloxy)piperidine-1-carbonyl]benzoate1797221-40-9C18H19N3O4
- (E)-3-(Benzo[d][1,3]dioxol-5-yl)-1-(4-(3-methyl-1,2,4-oxadiazol-5-yl)piperidin-1-yl)prop-2-en-1-one1421588-08-0C18H19N3O4
- 3-(Benzyloxy)-N-(3-(tert-butyl)isoxazol-5-yl)isoxazole-5-carboxamide1428358-31-9C18H19N3O4
- 7-Methoxy-N-(1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-yl)benzofuran-2-carboxamide1797551-44-0C18H19N3O4
- 2-(Benzo[d][1,3]dioxol-5-yl)-1-(3-(pyridazin-3-yloxy)piperidin-1-yl)ethanone2034225-27-7C18H19N3O4
- (2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)(3-(pyrazin-2-yloxy)piperidin-1-yl)methanone2034473-79-3C18H19N3O4
- 6-Methoxy-N-(2-(3-oxo-2,3-dihydrobenzo[f][1,4]oxazepin-4(5H)-yl)ethyl)nicotinamide2034550-92-8C18H19N3O4
- Methyl 3-(2-hydroxyethyl)-5-(4-methoxyphenyl)-2-methyl-3H-imidazo-[4,5-b]-pyridine-7-carboxylate1820740-60-0C18H19N3O4
- Thalidomide-piperidine2924858-38-6C18H19N3O4
- Naphthalimide, 2-(2-(diethylamino)ethyl)-5-nitro-54824-18-9C18H19N3O4
- N-(2-Methylpropyl)-2-[(3-nitrobenzoyl)amino]benzamide693822-61-6C18H19N3O4
- 2-Morpholin-4-yl-N-(3-nitrophenyl)-2-phenylacetamide847239-34-3C18H19N3O4
- 2H-1-Benzopyran-6-carbonitrile, 3,4-dihydro-2,2-dimethyl-3-hydroxy-4-((4-methyl-5-oxo-3,4-diazabicyclo(4.1.0)hept-2-en-2-yl)oxy)-154186-66-0C18H19N3O4
- N-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]-4-(pentyloxy)benzamide862809-00-5C18H19N3O4
- N'-[(E)-(2,4-Dimethoxyphenyl)methylideneamino]-N-(4-methylphenyl)oxamide352012-36-3C18H19N3O4
- (2S)-2-[[2-[[(E)-3-(Furan-2-yl)prop-2-enoyl]amino]acetyl]amino]-3-phenylpropanamide26400-34-0C18H19N3O4
- N1-(3-acetamidophenyl)-N2-(4-methoxybenzyl)oxalamide900000-59-1C18H19N3O4
- N1-(4-acetamidophenyl)-N2-(2-methoxybenzyl)oxalamide900000-81-9C18H19N3O4
- 2-(3-Cyano-4,6-dimethyl-2-oxopyridin-1-yl)-N-(3,4-dimethoxyphenyl)acetamide932338-13-1C18H19N3O4
- 2-(3-Cyano-4,6-dimethyl-2-oxopyridin-1-yl)-N-(2,5-dimethoxyphenyl)acetamide932314-71-1C18H19N3O4
- 2-(3-Cyano-4,6-dimethyl-2-oxopyridin-1-yl)-N-(2,4-dimethoxyphenyl)acetamide932528-31-9C18H19N3O4
- Imidafenacin metabolite M8503598-20-7C18H19N3O4
- 1-(2-Methoxyphenyl)-3-((2-oxo-3-phenyloxazolidin-5-yl)methyl)urea954686-74-9C18H19N3O4
- N-{3-[(2-Carbamoylphenyl)amino]-3-oxopropyl}-3-methoxybenzamide945316-01-8C18H19N3O4
- N1-(furan-2-ylmethyl)-N2-(3-methyl-4-(2-oxopyrrolidin-1-yl)phenyl)oxalamide942012-21-7C18H19N3O4
- N1-(furan-2-ylmethyl)-N2-(3-(2-oxopiperidin-1-yl)phenyl)oxalamide941982-76-9C18H19N3O4
- N-(3-Nitro-4-methylphenyl)-3-morpholinobenzamide250681-52-8C18H19N3O4
- 1-(3,4-Dimethoxybenzyl)-3-(2-oxoindolin-5-yl)urea1170884-61-3C18H19N3O4
- 1-(3,5-Dimethoxyphenyl)-3-(1-methyl-2-oxoindolin-5-yl)urea1170511-32-6C18H19N3O4
- 1-(2,4-Dimethoxyphenyl)-3-(1-methyl-2-oxoindolin-5-yl)urea1170474-80-2C18H19N3O4
- Ethyl 5-[2-(ethoxycarbonyl)-5-methyl-1H-imidazol-4-yl]-1H-indole-2-carboxylate1222173-57-0C18H19N3O4
- N-(3,4-Dimethoxybenzyl)-3,6-dimethylisoxazolo[5,4-b]pyridine-4-carboxamide1190244-31-5C18H19N3O4
- N-(1-(Cyclopropanecarbonyl)indolin-6-yl)-2-(2,5-dioxopyrrolidin-1-yl)acetamide1206995-06-3C18H19N3O4
- 2-(4-(3-(Benzo[d][1,3]dioxol-5-yl)ureido)phenyl)-N,N-dimethylacetamide1206995-20-1C18H19N3O4
- N-(2-(3,5-Dimethyl-1H-pyrazol-1-yl)ethyl)-8-methoxy-2-oxo-2H-chromene-3-carboxamide1226458-91-8C18H19N3O4
- 3,4-Dimethoxy-N-[2-(methoxymethyl)-1H-benzimidazol-5-yl]benzamide1232780-61-8C18H19N3O4
- 4-({[(3-Oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetyl]amino}methyl)benzoic acid1246047-06-2C18H19N3O4
- N-(1,3-Benzodioxol-5-yl)-2-(3-oxo-3,5,6,7,8,9-hexahydro-2H-cyclohepta[c]pyridazin-2-yl)acetamide1324059-91-7C18H19N3O4
- Benzyl 4-(4-nitrophenyl)piperazine-1-carboxylate947673-13-4C18H19N3O4
- (E)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(2-(4-ethyl-6-oxopyrimidin-1(6H)-yl)ethyl)acrylamide1396889-96-5C18H19N3O4
- N-(Benzo[d][1,3]dioxol-5-yl)-4-(pyridin-2-yloxy)piperidine-1-carboxamide1448031-39-7C18H19N3O4
- Benzo[d][1,3]dioxol-5-yl(4-((6-methylpyridazin-3-yl)oxy)piperidin-1-yl)methanone1798025-04-3C18H19N3O4
- Benzo[d][1,3]dioxol-5-yl(3-((6-methylpyridazin-3-yl)oxy)piperidin-1-yl)methanone2034577-06-3C18H19N3O4
- Benzyl (2-oxo-2-(3-(pyridin-3-yloxy)azetidin-1-yl)ethyl)carbamate1903369-58-3C18H19N3O4
- 3-(1-(2-(1H-Indol-1-yl)acetyl)piperidin-4-yl)oxazolidine-2,4-dione2034241-10-4C18H19N3O4
- N-(Benzo[d][1,3]dioxol-5-ylmethyl)-3-(pyridin-4-yloxy)pyrrolidine-1-carboxamide2034472-65-4C18H19N3O4
- 2-(2,6-Dioxopiperidin-3-yl)-5-(piperidin-4-yl)isoindoline-1,3-dione2229718-43-6C18H19N3O4
- N-(3,4-Dimethylphenyl)-2-[(2E)-2-(4-hydroxy-3-methoxybenzylidene)hydrazinyl]-2-oxoacetamide352012-40-9C18H19N3O4
- 3-[1-Oxo-5-(4-oxo-1-piperidyl)-2-isoindolinyl]piperidine-2,6-dione2762612-34-8C18H19N3O4
- Thymidine, 5'-deoxy-5'-(1H-indol-1-yl)-53383-01-0C18H19N3O4
- N-[2-(3,4-Dimethoxyphenyl)-1-(hydrazinecarbonyl)eth-1-en-1-yl]benzamide143417-45-2C18H19N3O4
- 4-(2,2-Dimethylpropanoylamino)-N-(4-nitrophenyl)benzamide333394-88-0C18H19N3O4
- N-[2-(Butanoylamino)phenyl]-2-methyl-3-nitrobenzamide712323-06-3C18H19N3O4
- 4-[4-(4-Methoxyphenyl)piperazin-1-yl]-3-nitrobenzaldehyde851271-45-9C18H19N3O4
- Acetic acid, 2-ethoxy-, 2-oxo-2-[[4-(2-phenyldiazenyl)phenyl]amino]ethyl ester562861-42-1C18H19N3O4
- [2-[(1-Cyanocyclohexyl)amino]-2-oxoethyl] 2-(4-cyanophenoxy)acetate1117727-60-2C18H19N3O4
- 2-[[4-[(Methylamino)carbonyl]phenyl]amino]-2-oxoethyl 2-(methylamino)benzoate923832-18-2C18H19N3O4
- N-Benzoyl-L-tyrosylglycinamide7369-86-0C18H19N3O4
- 6-Cyclohexyl-5-furan-2-yl-7-oxo-4,7-dihydro-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid methyl ester632365-35-6C18H19N3O4
- 1-Amino-2,4-bis((2-hydroxyethyl)amino)anthracene-9,10-dione919747-77-6C18H19N3O4
- 5-[(4-Acetylpiperazin-1-yl)carbonyl]-2-cyclopropyl-1H-isoindole-1,3(2H)-dione1081144-48-0C18H19N3O4
- 1-[(2-Cyclopropyl-1,3-dioxo-2,3-dihydro-1H-isoindol-5-yl)carbonyl]piperidine-4-carboxamide1081130-88-2C18H19N3O4
- 1-(2,3-Dimethoxyphenyl)-3-(1-methyl-2-oxoindolin-5-yl)urea1172925-55-1C18H19N3O4
- 1-(3,5-Dimethoxyphenyl)-3-(2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)urea1171231-77-8C18H19N3O4
- 1-(2,3-Dimethoxyphenyl)-3-(2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)urea1171777-48-2C18H19N3O4
- 1-(3,4-Dimethoxyphenyl)-3-(2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)urea1171085-14-5C18H19N3O4
- 3-Nitro-4-(4-o-tolylpiperazin-1-yl)benzoic acid1053683-02-5C18H19N3O4
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 1-[4-(Acetylamino)phenyl]-N-(furan-2-ylmethyl)-5-oxopyrrolidine-3-carboxamide, 4-[2-(2,4-Dihydroxybenzylidene)hydrazino]-N-(2-methylphenyl)-4-oxobutanamide, N-(2,4-Dimethoxyphenyl)-6,7-dimethoxyquinazolin-4-amine. 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.