Molecular formula
C19H18N4O
181 compounds have this formula on CompoundList.
- Molar mass
- 318.38g/mol
- Monoisotopic mass
- 318.1481Da
- Atoms
- 42
- Elements
- 4
- Rings plus double bonds
- 13
The formula C19H18N4O describes a molecule made of 19 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms and 1 oxygen atom. 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 × 1971.68%12.011 × 19 = 228.209 g/mol
- H Hydrogen × 185.70%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 417.60%14.007 × 4 = 56.028 g/mol
- O Oxygen × 15.03%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C19H18N4O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 181 compounds
4-(5,6-Diphenyl-1,2,4-triazin-3-yl)morpholine
CAS 37398-96-2C19H18N4O
![7-(4-Methoxyphenyl)-5-(4-methylphenyl)-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidine chemical structure, C19H18N4O, CAS 324581-16-0](/s/PAAJVDGBQRSGBE-UHFFFAOYSA-N.svg)
7-(4-Methoxyphenyl)-5-(4-methylphenyl)-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidine
CAS 324581-16-0C19H18N4O
(4-Phenylpiperazin-1-yl)-quinoxalin-6-ylmethanone
CAS 296792-43-3C19H18N4O
![N-[[4-(Dimethylamino)benzylidene]amino]quinoline-3-carboxamide chemical structure, C19H18N4O, CAS 903632-51-9](/s/GCGOWNLWEBLUMU-CIAFOILYSA-N.svg)
N-[[4-(Dimethylamino)benzylidene]amino]quinoline-3-carboxamide
CAS 903632-51-9C19H18N4O
1-(4,6-Dimethylpyrimidin-2-yl)-6-phenyl-1,5,6,7-tetrahydro-4H-indazol-4-one
CAS 876721-73-2C19H18N4O
![(E)-3-(1H-Benzo[d]imidazol-1-yl)-N'-((E)-3-phenylallylidene)propanehydrazide chemical structure, C19H18N4O, CAS 518018-73-0](/s/ZIUGHJHEALPELP-YTJXIWKKSA-N.svg)
(E)-3-(1H-Benzo[d]imidazol-1-yl)-N'-((E)-3-phenylallylidene)propanehydrazide
CAS 518018-73-0C19H18N4O
![4-(Benzimidazolo[1,2-c]quinazolin-6-ylmethyl)morpholine chemical structure, C19H18N4O, CAS 106008-06-4](/s/AVMOXRBLEWHGTH-UHFFFAOYSA-N.svg)
4-(Benzimidazolo[1,2-c]quinazolin-6-ylmethyl)morpholine
CAS 106008-06-4C19H18N4O
![N-(2,6-Dimethylphenyl)-2-(5-methylfuran-2-yl)imidazo[1,2-a]pyrazin-3-amine chemical structure, C19H18N4O, CAS 879593-14-3](/s/FOMQNMCGCQZNSS-UHFFFAOYSA-N.svg)
N-(2,6-Dimethylphenyl)-2-(5-methylfuran-2-yl)imidazo[1,2-a]pyrazin-3-amine
CAS 879593-14-3C19H18N4O
Pyridin-4-yl-(4-quinolin-2-ylpiperazin-1-yl)methanone
CAS 683807-84-3C19H18N4O
Huhs015
CAS 1453097-13-6C19H18N4O
![(E)-3-((2-Ethoxyphenyl)amino)-2-(1-methyl-1H-benzo[d]imidazol-2-yl)acrylonitrile chemical structure, C19H18N4O, CAS 1164536-78-0](/s/XHYJRJMAYWZGIJ-BUHFOSPRSA-N.svg)
(E)-3-((2-Ethoxyphenyl)amino)-2-(1-methyl-1H-benzo[d]imidazol-2-yl)acrylonitrile
CAS 1164536-78-0C19H18N4O
![2-[4-[[(E)-Benzylideneamino]-methylamino]-6-methylpyrimidin-2-yl]phenol chemical structure, C19H18N4O, CAS 5256-63-3](/s/RQNIKNTZZHMMRQ-DEDYPNTBSA-N.svg)
2-[4-[[(E)-Benzylideneamino]-methylamino]-6-methylpyrimidin-2-yl]phenol
CAS 5256-63-3C19H18N4O
![5-Methyl-9-(4-morpholinyl)benzimidazo[2,1-a]phthalazine chemical structure, C19H18N4O, CAS 676562-77-9](/s/OGUOXRPVMIPQFU-UHFFFAOYSA-N.svg)
5-Methyl-9-(4-morpholinyl)benzimidazo[2,1-a]phthalazine
CAS 676562-77-9C19H18N4O
(Z)-N'-Benzylidene-3-(4-ethylphenyl)-1H-pyrazole-5-carbohydrazide
CAS 387832-69-1C19H18N4O
![11-(4-Morpholinyl)-2,3-dihydro-1H-cyclopenta[4,5]pyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C19H18N4O, CAS 122062-47-9](/s/PKNJUWQZBNJAOP-UHFFFAOYSA-N.svg)
11-(4-Morpholinyl)-2,3-dihydro-1H-cyclopenta[4,5]pyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 122062-47-9C19H18N4O
![2-[1-(2-Cyanoethyl)benzimidazol-2-yl]-N-(4-methylphenyl)acetamide chemical structure, C19H18N4O, CAS 5487-09-2](/s/ZNFAPPGQMBWAIE-UHFFFAOYSA-N.svg)
2-[1-(2-Cyanoethyl)benzimidazol-2-yl]-N-(4-methylphenyl)acetamide
CAS 5487-09-2C19H18N4O
![4-(Indolo[3,2-b]quinoxalin-6-ylmethyl)morpholine chemical structure, C19H18N4O, CAS 53003-22-8](/s/DISLOVCZRNIOTO-UHFFFAOYSA-N.svg)
4-(Indolo[3,2-b]quinoxalin-6-ylmethyl)morpholine
CAS 53003-22-8C19H18N4O
2-(2-Methyl-1H-benzimidazol-1-yl)-N'-(3-phenyl-2-propenylidene)acetohydrazide
CAS 308095-67-2C19H18N4O
![6-Amino-4-cyclohex-3-en-1-yl-3-phenyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C19H18N4O, CAS 337500-36-4](/s/MCVNJOHMZSRDEC-UHFFFAOYSA-N.svg)
6-Amino-4-cyclohex-3-en-1-yl-3-phenyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 337500-36-4C19H18N4O
![3-(2-(5,6-Dimethyl-1H-benzo[d]imidazol-1-yl)ethyl)-5-phenyl-1,2,4-oxadiazole chemical structure, C19H18N4O, CAS 887347-64-0](/s/QSZRPVCNANMELP-UHFFFAOYSA-N.svg)
3-(2-(5,6-Dimethyl-1H-benzo[d]imidazol-1-yl)ethyl)-5-phenyl-1,2,4-oxadiazole
CAS 887347-64-0C19H18N4O
4H-Imidazo(4,5-c)(1,8)naphthyridin-4-one, 3,5-dihydro-3-(2-methylpropyl)-5-phenyl-
CAS 139482-14-7C19H18N4O
(3,4-Dihydroisoquinolin-2(1H)-yl)(1-(p-tolyl)-1H-1,2,3-triazol-4-yl)methanone
CAS 951611-29-3C19H18N4O
![(4-([1,1'-Biphenyl]-4-yl)-2H-1,2,3-triazol-2-yl)(pyrrolidin-1-yl)methanone chemical structure, C19H18N4O, CAS 1361526-43-3](/s/UKVJRODNCZDEBC-UHFFFAOYSA-N.svg)
(4-([1,1'-Biphenyl]-4-yl)-2H-1,2,3-triazol-2-yl)(pyrrolidin-1-yl)methanone
CAS 1361526-43-3C19H18N4O
![4-{2-Amino-5H,6H,7H-pyrimido[5,4-c]carbazol-10-yl}-2-methylbut-3-yn-2-ol chemical structure, C19H18N4O, CAS 2419640-48-3](/s/JLVPPKZCHNVLJC-UHFFFAOYSA-N.svg)
4-{2-Amino-5H,6H,7H-pyrimido[5,4-c]carbazol-10-yl}-2-methylbut-3-yn-2-ol
CAS 2419640-48-3C19H18N4O
- 4H-Imidazo(4,5-c)(1,8)naphthyridin-4-one, 3,5-dihydro-3-butyl-5-phenyl-139482-13-6C19H18N4O
- 3,4-Dihydroquinolin-1(2H)-yl[4-(5-methyl-1H-1,2,3-triazol-1-yl)phenyl]methanone915872-70-7C19H18N4O
- 6-(3-Aminopropyl)-9-(1H-pyrazol-4-yl)benzo[h]isoquinolin-1(2H)-one919291-27-3C19H18N4O
- 6-(3-Aminopropyl)-9-(1H-pyrazol-5-yl)benzo[h]isoquinolin-1(2H)-one919291-30-8C19H18N4O
- 3-(6-Morpholino-1H-indol-2-yl)-1H-indazole1294514-63-8C19H18N4O
- 3-(4-tert-Butylphenyl)-5-(2H-triazol-4-yl)furo[3,2-b]pyridine2624098-97-9C19H18N4O
- 3-Amino-N-phenethyl-6-phenylpyrazine-2-carboxamide625459-21-4C19H18N4O
- N-(3-Methoxyphenyl)-1,3-dimethyl-1H-pyrazolo[3,4-B]quinolin-4-amine105379-57-5C19H18N4O
- [4-(4-Phenylphenyl)-1-triazolyl]-(1-pyrrolidinyl)methanone1312782-40-3C19H18N4O
- 3-Cyclopropyl-N'-[(1E)-1-(naphthalen-2-yl)ethylidene]-1H-pyrazole-5-carbohydrazide5789-65-1C19H18N4O
- 6-Benzyl-2-(pyridin-4-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-ol218955-22-7C19H18N4O
- 5-(4-Methoxyphenyl)-7-(4-methylphenyl)-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidine324581-12-6C19H18N4O
- Phenyl-(4-quinazolin-4-yl-piperazin-1-yl)-methanone1053655-62-1C19H18N4O
- (E)-3-Cyclopropyl-N'-(1-(naphthalen-1-yl)ethylidene)-1H-pyrazole-5-carbohydrazide1285680-83-2C19H18N4O
- (4-Aminophenyl)(2-methyl-4,5-dihydrobenzo[b]imidazo[4,5-d]azepin-6(1H)-yl)methanone182202-75-1C19H18N4O
- N-(4-((6-Methylpyridazin-3-yl)amino)phenyl)-2-phenylacetamide1203086-25-2C19H18N4O
- 1-(1H-Benzimidazol-2-yl)-3-methyl-4-(2-phenylethyl)-1H-pyrazol-5-ol925563-88-8C19H18N4O
- (3,4-Dihydroquinolin-1(2H)-yl)(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)methanone923685-69-2C19H18N4O
- (E)-3-((2-Methoxy-5-methylphenyl)amino)-2-(1-methyl-1H-benzo[d]imidazol-2-yl)acrylonitrile466668-28-0C19H18N4O
- 4-Amino-N-(5-amino-2-anilinophenyl)benzamide312747-22-1C19H18N4O
- (2Z)-2-[4-(Naphthalen-1-ylmethoxy)benzylidene]hydrazinecarboximidamide725276-50-6C19H18N4O
- 5-Cyclopropyl-N-(3-methylphenyl)-1-phenyl-1H-1,2,3-triazole-4-carboxamide954359-66-1C19H18N4O
- 7-(4-Isopropoxyphenyl)-3-(1H-pyrazol-4-yl)imidazo[1,2-a]pyridine1414843-61-0C19H18N4O
- N-[2-(1H-Indol-3-yl)ethyl]-2-methyl-1H-1,3-benzimidazole-5-carboxamide1401555-88-1C19H18N4O
- 5-Amino-4-(1H-benzimidazol-2-yl)-1-(4-methylbenzyl)-1,2-dihydro-3H-pyrrol-3-one881942-83-2C19H18N4O
- 6-Amino-4-cyclohex-2-en-1-yl-3-phenyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile497246-74-9C19H18N4O
- 2-Methyl-3H-indol-3-one (1-acetyl-2,3-dihydro-1H-indol-5-yl)hydrazone379249-22-6C19H18N4O
- (2E)-2-(1H-Benzimidazol-2-yl)-3-[5-(piperidin-1-yl)furan-2-yl]prop-2-enenitrile477535-51-6C19H18N4O
- 5-Cyclopropyl-N-(4-methylphenyl)-1-phenyl-1H-1,2,3-triazole-4-carboxamide954305-95-4C19H18N4O
- 5-Cyclopropyl-N-(2-methylphenyl)-1-phenyl-1H-1,2,3-triazole-4-carboxamide954773-27-4C19H18N4O
- (2Z)-2-[(Z)-Benzoyl]-3-[4-(pyridin-2-yl)piperazin-1-yl]prop-2-enenitrile1024776-30-4C19H18N4O
- N-((1H-Benzo[d]imidazol-2-yl)methyl)-2-(1-methyl-1H-indol-3-yl)acetamide1208516-41-9C19H18N4O
- N-[2-(1H-Benzimidazol-1-yl)ethyl]-1-methyl-1H-indole-3-carboxamide1401559-95-2C19H18N4O
- 5-Amino-4-(1H-benzimidazol-2-yl)-1-(2-phenylethyl)-1,2-dihydro-3H-pyrrol-3-one325832-81-3C19H18N4O
- 2(1H)-Pyrimidinone, 4-[(9-ethyl-9H-carbazol-3-yl)amino]-6-methyl-203913-68-2C19H18N4O
- 3-Benzyl-4-oxo-4,6,7,8,9,10-hexahydro-3H-pyrimido[4',5':4,5]pyrrolo[1,2-a]azepine-11-carbonitrile132994-12-8C19H18N4O
- 2-[(E)-2-(Dimethylamino)ethenyl]-4-(2-methoxyphenyl)-6-methylpyridine-3,5-dicarbonitrile339014-48-1C19H18N4O
- 1,2,4-Triazolo(3,4-a)phthalazine, 3-(3,4-dimethylphenyl)-6-ethoxy-87540-46-3C19H18N4O
- N'-[(1E)-1-(4-Methylphenyl)ethylidene]-3-phenyl-1H-pyrazole-5-carbohydrazide1310356-31-0C19H18N4O
- N-[2-(1H-1,3-Benzimidazol-2-yl)ethyl]-2-(1H-indol-1-yl)acetamide1574324-97-2C19H18N4O
- 2-(1-Methyl-1H-indol-3-yl)-N-(pyrazolo[1,5-a]pyridin-3-ylmethyl)acetamide1360384-46-8C19H18N4O
- 1-Methyl-N-[(1-methyl-1H-benzimidazol-2-yl)methyl]-1H-indole-5-carboxamide1401558-46-0C19H18N4O
- N-(2-(Pyrrolidin-1-yl)pyrimidin-5-yl)-1-naphthamide1421472-21-0C19H18N4O
- N-[2-(1H-1,3-Benzimidazol-2-yl)ethyl]-1-methyl-1H-indole-4-carboxamide1574324-58-5C19H18N4O
- N-[2-(1H-1,3-Benzimidazol-2-yl)ethyl]-1-methyl-1H-indole-5-carboxamide1574403-68-1C19H18N4O
- N-[2-(1H-1,3-Benzimidazol-2-yl)ethyl]-1-methyl-1H-indole-2-carboxamide1676069-27-4C19H18N4O
- 5H-Pyrrolo(3,4-d)pyrimidin-7(6H)-one, 3,4-dihydro-2-amino-6-benzyl-4-phenyl-, hydrochloride76628-95-0C19H18N4O
- 4-Phenyl-N-propyl-2-(3-pyridinyl)-5-pyrimidinecarboxamide400079-50-7C19H18N4O
- N-[(E)-Furan-2-ylmethylideneamino]-6-methyl-2-phenyl-5-prop-2-enylpyrimidin-4-amine330819-77-7C19H18N4O
- 1-(1H-Indol-3-yl)-3-[(2-methyl-1H-indol-5-yl)methyl]urea941879-04-5C19H18N4O
- 3-(1H-Indol-3-yl)-N-(2-methyl-1H-benzimidazol-5-yl)propanamide1219563-02-6C19H18N4O
- 1-Methyl-N-[(1-methyl-1H-benzimidazol-2-yl)methyl]-1H-indole-3-carboxamide1401566-61-7C19H18N4O
- [4-(Pyridin-2-yl)piperazin-1-yl](quinolin-6-yl)methanone1795038-48-0C19H18N4O
- N-[2-(1H-1,3-Benzimidazol-2-yl)ethyl]-1-methyl-1H-indole-6-carboxamide1574361-99-1C19H18N4O
- 5-[(3-Phenyl-3-azetidinyl)amino]-8-quinolinecarboxamide1445781-94-1C19H18N4O
- 2-(1H-Indol-1-yl)-1-{4,6,12-triazatricyclo[7.2.1.0^{2,7}]dodeca-2(7),3,5-trien-12-yl}ethan-1-one1904132-76-8C19H18N4O
- N-(1-Phenyl-2-(2H-1,2,3-triazol-2-yl)ethyl)cinnamamide2035005-10-6C19H18N4O
- 7-Benzyl-2-(pyridin-2-yl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one958365-73-6C19H18N4O
- 1-Cyclohexyl-2-(furan-2-yl)-1H-imidazo[4,5-b]quinoxaline845627-93-2C19H18N4O
- 4-(3,6-Diphenyl-1,2,4-triazin-5-yl)morpholine339013-01-3C19H18N4O
- N-Phenyl-1-(pyridin-3-yl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxamide900003-09-0C19H18N4O
- 2-Methyl-3-phenyl-7-propylpyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-6(7H)-one932156-20-2C19H18N4O
- N-(1H-Benzimidazol-2-ylmethyl)-3-(1H-indol-1-yl)propanamide1060936-81-3C19H18N4O
- 1-(2-(1H-Indol-1-yl)ethyl)-3-(1H-indol-3-yl)urea899946-92-0C19H18N4O
- N~2~-[2-(1H-indol-3-yl)ethyl]-7-methylimidazo[1,2-a]pyridine-2-carboxamide1081129-61-4C19H18N4O
- 2-Propyl-5-(1-(pyridin-2-ylmethyl)-1H-indol-2-yl)-1,3,4-oxadiazole921800-96-6C19H18N4O
- 2-Isopropyl-5-(1-(pyridin-3-ylmethyl)-1H-indol-2-yl)-1,3,4-oxadiazole921801-38-9C19H18N4O
- 2-Isopropyl-5-(1-(pyridin-2-ylmethyl)-1H-indol-2-yl)-1,3,4-oxadiazole921779-93-3C19H18N4O
- N-(1H-Benzimidazol-6-yl)-4-(1H-indol-3-yl)butanamide1282109-17-4C19H18N4O
- N-Benzyl-N-(cyanomethyl)-1,2-dimethyl-1H-1,3-benzodiazole-5-carboxamide1311516-54-7C19H18N4O
- N-[2-(1H-Benzimidazol-1-yl)ethyl]-1-methyl-1H-indole-4-carboxamide1401586-33-1C19H18N4O
- N-(2-(3-(Pyridin-4-yl)-1H-pyrazol-1-yl)ethyl)cinnamamide1448140-01-9C19H18N4O
- 5-Cyano-N-(2-cyano-4-phenylbutan-2-yl)-6-methylpyridine-2-carboxamide1385478-69-2C19H18N4O
- N-[Cyano(1-phenyl-1H-pyrazol-4-yl)methyl]bicyclo[2.2.1]hept-5-ene-2-carboxamide1797795-40-4C19H18N4O
- N-(2-(1H-Imidazo[1,2-b]pyrazol-1-yl)ethyl)-2-(naphthalen-1-yl)acetamide1797225-45-6C19H18N4O
- (E)-1-(2-Methyl-8,9-dihydropyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-7(6H)-yl)-3-phenylprop-2-en-1-one1798422-19-1C19H18N4O
Frequently asked questions
What is the molar mass of C19H18N4O?
The molar mass of C19H18N4O is 318.38 g/mol, calculated from standard atomic weights for 19 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 318.1481 Da.
How many compounds have the formula C19H18N4O?
CompoundList lists 181 compounds with the molecular formula C19H18N4O, including 4-(5,6-Diphenyl-1,2,4-triazin-3-yl)morpholine, 7-(4-Methoxyphenyl)-5-(4-methylphenyl)-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidine, (4-Phenylpiperazin-1-yl)-quinoxalin-6-ylmethanone. 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 C19H18N4O?
C19H18N4O 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.