Molecular formula
C18H19N3O
311 compounds have this formula on CompoundList.
- Molar mass
- 293.37g/mol
- Monoisotopic mass
- 298.1842Da
- Atoms
- 41
- Elements
- 4
- Rings plus double bonds
- 11
The formula C18H19N3O describes a molecule made of 18 carbon atoms, 19 hydrogen atoms, 3 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 × 1873.69%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 196.53%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 314.32%14.007 × 3 = 42.021 g/mol
- O Oxygen × 15.45%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C18H19N3O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 311 compounds
Ondansetron
CAS 99614-02-5C18H19N3O
Ondansetron, (3S)-
CAS 99614-58-1C18H19N3O
N-(2-(Dimethylamino)ethyl)acridine-4-carboxamide
CAS 89459-25-6C18H19N3O
2,7,7-Trimethyl-5-oxo-4-(pyridin-3-yl)-1,4,5,6,7,8-hexahydroquinoline-3-carbonitrile
CAS 5707-35-7C18H19N3O
2-Amino-N-benzyl-3-(1H-indol-3-yl)-propionamide
CAS 187085-81-0C18H19N3O
Fabesetron
CAS 129300-27-2C18H19N3O
![3-Methyl-1-oxo-2-pentyl-1,5-dihydropyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C18H19N3O, CAS 611197-29-6](/s/MPBQHYPNCVZYKG-UHFFFAOYSA-N.svg)
3-Methyl-1-oxo-2-pentyl-1,5-dihydropyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 611197-29-6C18H19N3O
![1H,5H-Benzo[ij]quinolizin-8-ol, 2,3,6,7-tetrahydro-9-(2-phenyldiazenyl)- chemical structure, C18H19N3O, CAS 1351486-59-3](/s/VUDVSBCKIRWZDE-UHFFFAOYSA-N.svg)
1H,5H-Benzo[ij]quinolizin-8-ol, 2,3,6,7-tetrahydro-9-(2-phenyldiazenyl)-
CAS 1351486-59-3C18H19N3O
FK 1052
CAS 129299-72-5C18H19N3O
![3-[(6-Methyl-4-phenyl-2-quinazolinyl)amino]-1-propanol chemical structure, C18H19N3O, CAS 412919-96-1](/s/XDEQAODTFDNSFK-UHFFFAOYSA-N.svg)
3-[(6-Methyl-4-phenyl-2-quinazolinyl)amino]-1-propanol
CAS 412919-96-1C18H19N3O
![N-[2-(1H-Indol-3-yl)ethyl]-N'-(2-methylphenyl)urea chemical structure, C18H19N3O, CAS 838256-64-7](/s/HIDVIEJKWAUXHX-UHFFFAOYSA-N.svg)
N-[2-(1H-Indol-3-yl)ethyl]-N'-(2-methylphenyl)urea
CAS 838256-64-7C18H19N3O
![N-[(2-Methoxyphenyl)methyl]-1-prop-2-enylbenzimidazol-2-amine chemical structure, C18H19N3O, CAS 692274-96-7](/s/TXEPKFDUZZMFRQ-UHFFFAOYSA-N.svg)
N-[(2-Methoxyphenyl)methyl]-1-prop-2-enylbenzimidazol-2-amine
CAS 692274-96-7C18H19N3O
N-(1-tert-Butylbenzimidazol-5-yl)benzamide
CAS 335397-23-4C18H19N3O
![N-[3-(1H-Benzimidazol-2-yl)phenyl]-3-methylbutanamide chemical structure, C18H19N3O, CAS 305361-69-7](/s/MXMQGOVISCLRBZ-UHFFFAOYSA-N.svg)
N-[3-(1H-Benzimidazol-2-yl)phenyl]-3-methylbutanamide
CAS 305361-69-7C18H19N3O
![N-[1-(1H-Benzimidazol-2-yl)-2-phenylethyl]propanamide chemical structure, C18H19N3O, CAS 872347-62-1](/s/DYSCTYPIDNOFOL-UHFFFAOYSA-N.svg)
N-[1-(1H-Benzimidazol-2-yl)-2-phenylethyl]propanamide
CAS 872347-62-1C18H19N3O
![N-[2-(1-Benzylbenzimidazol-2-yl)ethyl]acetamide chemical structure, C18H19N3O, CAS 638141-44-3](/s/GXQPQMIHGYIUNU-UHFFFAOYSA-N.svg)
N-[2-(1-Benzylbenzimidazol-2-yl)ethyl]acetamide
CAS 638141-44-3C18H19N3O
![3-(4-Methylphenyl)-2-phenyltetrahydro-1H,5H-pyrazolo[1,2-a][1,2,4]triazol-1-one chemical structure, C18H19N3O, CAS 6368-87-2](/s/YPLNSWMNAYLDHO-UHFFFAOYSA-N.svg)
3-(4-Methylphenyl)-2-phenyltetrahydro-1H,5H-pyrazolo[1,2-a][1,2,4]triazol-1-one
CAS 6368-87-2C18H19N3O
![N-[6-Methyl-2-(4-methylphenyl)imidazo[1,2-a]pyridin-3-yl]propanamide chemical structure, C18H19N3O, CAS 374094-74-3](/s/IYUZKWKKGSCNAL-UHFFFAOYSA-N.svg)
N-[6-Methyl-2-(4-methylphenyl)imidazo[1,2-a]pyridin-3-yl]propanamide
CAS 374094-74-3C18H19N3O
1-Cinnamoyl-4-(2-pyridinyl)piperazine
CAS 1164538-01-5C18H19N3O
(E)-N'-Benzylidene-2-(3,4-dihydroquinolin-1(2H)-yl)acetohydrazide
CAS 681476-68-6C18H19N3O
![5-(4-Methylbenzyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-one chemical structure, C18H19N3O, CAS 1009282-30-7](/s/FUDMXSDRHFZJQX-UHFFFAOYSA-N.svg)
5-(4-Methylbenzyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-one
CAS 1009282-30-7C18H19N3O
1-(3,4-Dihydro-2H-pyrrol-5-yl)-1-(4-methylphenyl)-3-phenylurea
CAS 307325-40-2C18H19N3O
![2-[[(1-Methylbenzimidazol-2-yl)amino]methyl]-6-prop-2-enylphenol chemical structure, C18H19N3O, CAS 692271-35-5](/s/MBHLTSFTHVNZHP-UHFFFAOYSA-N.svg)
2-[[(1-Methylbenzimidazol-2-yl)amino]methyl]-6-prop-2-enylphenol
CAS 692271-35-5C18H19N3O
![1-[2-(1H-Indol-3-yl)ethyl]-3-(3-methylphenyl)urea chemical structure, C18H19N3O, CAS 840471-74-1](/s/LDZFYUYLCDXWRK-UHFFFAOYSA-N.svg)
1-[2-(1H-Indol-3-yl)ethyl]-3-(3-methylphenyl)urea
CAS 840471-74-1C18H19N3O
- N'-(3,3-Dimethyl-3,4-dihydroisoquinolin-1-yl)benzohydrazide147567-55-3C18H19N3O
- N'-[(1E)-6,7-Dimethyl-3,4-dihydronaphthalen-1(2H)-ylidene]pyridine-2-carbohydrazide324013-73-2C18H19N3O
- 1-[2-(5-Methyl-1H-indol-3-yl)ethyl]-3-phenylurea775290-21-6C18H19N3O
- N-[1-[(4-Methylphenyl)methyl]benzimidazol-2-yl]propanamide364601-50-3C18H19N3O
- 4-Methyl-N-(1-propyl-1H-benzimidazol-2-yl)benzamide333771-32-7C18H19N3O
- N-[(1-Ethylbenzimidazol-2-yl)methyl]-3-methylbenzamide850917-70-3C18H19N3O
- N-(3-Imidazo[1,2-a]pyridin-2-ylphenyl)pentanamide361180-16-7C18H19N3O
- N-[3-Cyano-6-(2-methylpropyl)-4-phenylpyridin-2-yl]acetamide352657-68-2C18H19N3O
- N-({1-[(2-Methylphenyl)methyl]benzimidazol-2-yl}methyl)acetamide850920-25-1C18H19N3O
- Acetamide, 2-benzoimidazol-1-yl-N-isopropyl-N-phenyl-299442-28-7C18H19N3O
- N-(1-Butylbenzimidazol-2-yl)benzamide331850-28-3C18H19N3O
- 2-(Allylamino)-N'-(diphenylmethylene)acetohydrazide341968-06-7C18H19N3O
- 3-[(Dimethylamino)methyl]-N-phenyl-1H-indole-2-carboxamide300679-39-4C18H19N3O
- 4-(1H-Indol-3-yl)-N-(5-methylpyridin-2-yl)butanamide919720-99-3C18H19N3O
- N-[3-(1-Benzylbenzimidazol-2-yl)propyl]formamide877292-49-4C18H19N3O
- 4-{3-[(6-Methylquinazolin-4-yl)amino]propyl}phenol1808544-87-7C18H19N3O
- (R)-Ondansetron99614-60-5C18H19N3O
- 6-Amino-1-isopropyl-7-methyl-4-phenylquinazolin-2(1H)-one28340-78-5C18H19N3O
- GR 67330116684-93-6C18H19N3O
- 4-(Benzylamino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one23934-85-2C18H19N3O
- 2-(2,3-Dihydro-1H-indol-1-yl)-7,7-dimethyl-7,8-dihydroquinazolin-5(6H)-one846599-68-6C18H19N3O
- N-{[1-Benzylbenzimidazol-2-yl]methyl}propanamide872344-98-4C18H19N3O
- 2(1H)-Pyridinone, 5-ethyl-6-methyl-3-((2-quinolinylmethyl)amino)-143707-84-0C18H19N3O
- 2-[4-(tert-Butylamino)-2-quinazolinyl]phenol433966-69-9C18H19N3O
- N-[2-(1H-Benzimidazol-2-yl)ethyl]-3,4-dimethylbenzamide442570-94-7C18H19N3O
- N-[1-(1-Benzylbenzimidazol-2-yl)ethyl]acetamide872348-26-0C18H19N3O
- Dibenz(b,f)(1,4)oxazepine, 11-(4-methyl-1-piperazinyl)-2058-53-9C18H19N3O
- N-[7-Methyl-2-(4-methylphenyl)imidazo[1,2-a]pyridin-3-yl]propanamide372973-70-1C18H19N3O
- 5-Ethyl-6-methyl-3-(3-quinolylmethylamino)-1H-pyridin-2-one143707-82-8C18H19N3O
- 1,3,5-Triazaadamantan-7-yl(naphthalen-2-yl)methanone149034-86-6C18H19N3O
- N-{2-Phenylimidazo[1,2-A]pyridin-3-YL}pentanamide373613-72-0C18H19N3O
- 3-[4-(Dimethylamino)phenyl]-5-phenyl-4,5-dihydro-1H-pyrazole-1-carbaldehyde5322-41-8C18H19N3O
- N-[2-(2-Phenyl-4,5-dihydro-1H-imidazol-1-yl)ethyl]benzamide136696-56-5C18H19N3O
- 1,4-Benzdiaz-2-ON,1ME5(PH)7dimeam2891-09-0C18H19N3O
- N-Benzyl-N-[(5-phenyl-1,3,4-oxadiazol-2-yl)methyl]ethanamine879576-03-1C18H19N3O
- 2-N-Carboxamidonormianserin119200-45-2C18H19N3O
- 2-Methyl-N-[4-(6-methyl-1H-benzimidazol-2-yl)phenyl]propanamide832091-77-7C18H19N3O
- Cgp 871684782-21-8C18H19N3O
- 2-Amino-4-(4-methoxyphenyl)-8-methyl-5,6,7,8-tetrahydroquinoline-3-carbonitrile331979-97-6C18H19N3O
- N-(3-(1H-Pyrrol-1-yl)propyl)-4-(1H-pyrrol-1-yl)benzamide1226434-69-0C18H19N3O
- N-(2-(3,5-Dimethyl-1H-pyrazol-1-yl)ethyl)-1-naphthamide1235360-84-5C18H19N3O
- Imidazo(1,2-a)pyridine, 3-(morpholinomethyl)-2-phenyl-3323-03-3C18H19N3O
- N-(1H-Benzimidazol-2-yl)-4-tert-butylbenzamide25737-69-3C18H19N3O
- 2-[5-(4-tert-Butylphenyl)-1,3,4-oxadiazol-2-yl]aniline159222-57-8C18H19N3O
- 2-(2-Furyl)-4-(4-methylpiperazin-1-yl)quinoline133671-67-7C18H19N3O
- 2-Methyl-N-{7-methyl-2-phenylimidazo[1,2-A]pyridin-3-YL}propanamide364611-75-6C18H19N3O
- 3-(o-Cumenyl)-5-(m-methoxyphenyl)-s-triazole69095-87-0C18H19N3O
- N-[(1-Ethylbenzimidazol-2-yl)methyl]-2-phenylacetamide878715-32-3C18H19N3O
- s-Triazole, 5-(m-ethoxyphenyl)-3-(o-ethylphenyl)-85303-98-6C18H19N3O
- 1-(1H-Indol-3-yl)-3-(4-isopropylphenyl)urea941968-53-2C18H19N3O
- 8-Phenyl-1,2,3,5,6,8-hexahydro-4,7-methano-1,4,7-benzotriazecin-13-one76896-26-9C18H19N3O
- 2-(4-Benzyl-piperazin-1-yl)-benzooxazole155106-76-6C18H19N3O
- 2-[(4-Methylphenyl)methyl]-1H,2H,7H,8H,9H,10H-pyrazino[1,2-b]indazol-1-one1775342-25-0C18H19N3O
- 1-Acridinecarboxamide, N-(2-(dimethylamino)ethyl)-106626-55-5C18H19N3O
- 1-Butanol, 2-[(4-phenyl-1-phthalazinyl)amino]-140214-77-3C18H19N3O
- 4-Methyl-8-(2,4,6-trimethyl-phenylamino)-2H-phthalazin-1-one1072157-13-1C18H19N3O
- N-(1-Benzylpyrrolidin-3-yl)-1,3-benzoxazol-2-amine1356680-78-8C18H19N3O
- 1-Ethyl-3-(1H-indol-3-yl)-1-(o-tolyl)urea899753-34-5C18H19N3O
- 3-(1H-Indol-3-yl)-N-[2-(pyridin-2-yl)ethyl]propanamide1090554-69-0C18H19N3O
- 2-[4-(Diethylamino)phenyl]quinazolin-4(1H)-one92681-82-8C18H19N3O
- 1 suppliersGaldansetron116684-92-5C18H19N3O
- 1-(([1,1'-Biphenyl]-2-yloxy)methyl)-3,5-dimethyl-1H-pyrazol-4-amine1004451-73-3C18H19N3O
- 3-Arylisoquinolinamine derivative1029008-71-6C18H19N3O
- 4-(2-Cyanoethyl)-4-(4-methylbenzoyl)heptanedinitrile7461-85-0C18H19N3O
- 2-(1H-Benzimidazol-1-yl)-N-mesitylacetamide172317-86-1C18H19N3O
- 1-Benzyl-2,3-dimethyl-1H-indole-5-carbohydrazide350990-21-5C18H19N3O
- 2-Ethyl-N-(4-methoxyphenyl)-N-methylquinazolin-4-amine827031-06-1C18H19N3O
- 4-Quinazolinamine, N-(4-ethoxyphenyl)-N,2-dimethyl-827031-40-3C18H19N3O
- 1-(4-Ethylphenyl)-3-(1-methyl-1H-indol-3-yl)urea923067-90-7C18H19N3O
- 2-(4-(Benzyloxy)piperidin-1-yl)nicotinonitrile1355482-99-3C18H19N3O
- 3-(2-((Cyclopropylmethyl)amino)phenyl)-1-methyl-1,6-dihydro-7H-pyrrolo[2,3-c]pyridin-7-one1627713-86-3C18H19N3O
- 3,5-Dimethyl-1-(3-phenoxybenzyl)-1H-pyrazol-4-amine514800-85-2C18H19N3O
- 3-{[4-(Diethylamino)-2-hydroxybenzylidene]amino}benzonitrile1227203-72-6C18H19N3O
- Benzamide,4-(1,1-dimethylethyl)-N-imidazo[1,2-a]pyridin-2-yl-1005775-58-5C18H19N3O
- 3-Furan-2-yl-5,5,8,9-tetramethyl-5,6-dihydro[1,2,4]triazolo[3,4-a]isoquinoline301354-64-3C18H19N3O
- Tambjamine F126584-09-6C18H19N3O
Frequently asked questions
What is the molar mass of C18H19N3O?
The molar mass of C18H19N3O is 293.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 298.1842 Da.
How many compounds have the formula C18H19N3O?
CompoundList lists 311 compounds with the molecular formula C18H19N3O, including Ondansetron, Ondansetron, (3S)-, N-(2-(Dimethylamino)ethyl)acridine-4-carboxamide. 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 C18H19N3O?
C18H19N3O 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.