Molecular formula
C18H19N5O
213 compounds have this formula on CompoundList.
- Molar mass
- 321.38g/mol
- Monoisotopic mass
- 321.1590Da
- Atoms
- 43
- Elements
- 4
- Rings plus double bonds
- 12
The formula C18H19N5O describes a molecule made of 18 carbon atoms, 19 hydrogen atoms, 5 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 × 1867.27%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 195.96%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 521.79%14.007 × 5 = 70.035 g/mol
- O Oxygen × 14.98%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C18H19N5O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 213 compounds
5-Amino-1-benzyl-N-(3-ethylphenyl)-1H-1,2,3-triazole-4-carboxamide
CAS 899749-98-5C18H19N5O
N-(4-tert-Butylphenyl)-4-(1H-tetraazol-5-yl)benzamide
CAS 651769-95-8C18H19N5O
![1-(3,5-Dimethylphenyl)-3-[4-(1H-1,2,4-triazol-1-ylmethyl)phenyl]urea chemical structure, C18H19N5O, CAS 925173-96-2](/s/UPAJXHZLFVKKKW-UHFFFAOYSA-N.svg)
1-(3,5-Dimethylphenyl)-3-[4-(1H-1,2,4-triazol-1-ylmethyl)phenyl]urea
CAS 925173-96-2C18H19N5O
3-Phenyl-N-((1-(p-tolyl)-1H-tetrazol-5-yl)methyl)propanamide
CAS 921054-65-1C18H19N5O
N-((1-(3,4-Dimethylphenyl)-1H-tetrazol-5-yl)methyl)-2-phenylacetamide
CAS 920432-56-0C18H19N5O
3,5-Dimethyl-N-((1-(p-tolyl)-1H-tetrazol-5-yl)methyl)benzamide
CAS 921165-60-8C18H19N5O
N-(4-Phenylbutan-2-yl)-3-(1H-tetrazol-1-yl)benzamide
CAS 1010924-51-2C18H19N5O
2-Phenyl-N-((1-phenyl-1H-tetrazol-5-yl)methyl)butanamide
CAS 921055-39-2C18H19N5O
![2-(Piperidin-1-yl)-6-(pyridin-3-ylmethyl)pyrido[4,3-d]pyrimidin-5(6H)-one chemical structure, C18H19N5O, CAS 1192804-75-3](/s/AQHUZOKEQZYMTB-UHFFFAOYSA-N.svg)
2-(Piperidin-1-yl)-6-(pyridin-3-ylmethyl)pyrido[4,3-d]pyrimidin-5(6H)-one
CAS 1192804-75-3C18H19N5O
N-(Naphthalen-1-yl)-1-(1H-tetrazol-1-yl)cyclohexanecarboxamide
CAS 1212279-27-0C18H19N5O
![4-[4-(3-Methyl-1-phenyl-1H-pyrazol-4-yl)-2-pyrimidinyl]morpholine chemical structure, C18H19N5O, CAS 1208925-04-5](/s/DHCMJHUKTPJXIZ-UHFFFAOYSA-N.svg)
4-[4-(3-Methyl-1-phenyl-1H-pyrazol-4-yl)-2-pyrimidinyl]morpholine
CAS 1208925-04-5C18H19N5O
![4-tert-Butyl-N-[2-(1H-tetrazol-1-yl)phenyl]benzamide chemical structure, C18H19N5O, CAS 901323-86-2](/s/XXLCAKLOFLPUGZ-UHFFFAOYSA-N.svg)
4-tert-Butyl-N-[2-(1H-tetrazol-1-yl)phenyl]benzamide
CAS 901323-86-2C18H19N5O
N-Butyl-N,2-diphenyl-2H-tetrazole-5-carboxamide
CAS 1396798-90-5C18H19N5O
N-(2-((6-(1H-Pyrrol-1-yl)pyrimidin-4-yl)amino)ethyl)-2-methylbenzamide
CAS 1421530-10-0C18H19N5O
1-(2-(3-(Pyridin-2-yl)-1H-pyrazol-1-yl)ethyl)-3-(o-tolyl)urea
CAS 1448134-12-0C18H19N5O
![N-(3-Phenylpropyl)-2-[4-(1H-tetrazol-1-yl)phenyl]acetamide chemical structure, C18H19N5O, CAS 1574517-19-3](/s/BKSHLAGKTWYNQU-UHFFFAOYSA-N.svg)
N-(3-Phenylpropyl)-2-[4-(1H-tetrazol-1-yl)phenyl]acetamide
CAS 1574517-19-3C18H19N5O
![3-{[2-(Dimethylamino)pyrimidin-4-yl]methyl}-1-(naphthalen-2-yl)urea chemical structure, C18H19N5O, CAS 1795190-70-3](/s/TVKGHXRFTLDAPO-UHFFFAOYSA-N.svg)
3-{[2-(Dimethylamino)pyrimidin-4-yl]methyl}-1-(naphthalen-2-yl)urea
CAS 1795190-70-3C18H19N5O
1-(3-(4-Phenyl-1H-1,2,3-triazol-1-yl)pyrrolidin-1-yl)-2-(1H-pyrrol-1-yl)ethanone
CAS 2034264-59-8C18H19N5O
![1-Benzyl-3-(3-cyclobutyl-2H-pyrazolo[4,3-c]pyridin-6-yl)urea chemical structure, C18H19N5O, CAS 1431714-50-9](/s/ZWDCLISCEMLASV-UHFFFAOYSA-N.svg)
1-Benzyl-3-(3-cyclobutyl-2H-pyrazolo[4,3-c]pyridin-6-yl)urea
CAS 1431714-50-9C18H19N5O
N-(2-(3,5-Dimethyl-1-(pyridin-2-yl)-1H-pyrazol-4-yl)ethyl)isonicotinamide
CAS 2034619-87-7C18H19N5O
![3-(1H-Pyrazol-1-yl)-N-((4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-3-yl)methyl)benzamide chemical structure, C18H19N5O, CAS 2034266-31-2](/s/YDCFEHNXFSKBJP-UHFFFAOYSA-N.svg)
3-(1H-Pyrazol-1-yl)-N-((4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-3-yl)methyl)benzamide
CAS 2034266-31-2C18H19N5O
![N-({[2,3'-Bipyridine]-3-yl}methyl)-1,3,5-trimethyl-1H-pyrazole-4-carboxamide chemical structure, C18H19N5O, CAS 1903548-81-1](/s/PZMPWQATYCKPCO-UHFFFAOYSA-N.svg)
N-({[2,3'-Bipyridine]-3-yl}methyl)-1,3,5-trimethyl-1H-pyrazole-4-carboxamide
CAS 1903548-81-1C18H19N5O
![N-({[2,4'-Bipyridine]-4-yl}methyl)-1,3,5-trimethyl-1H-pyrazole-4-carboxamide chemical structure, C18H19N5O, CAS 2034579-58-1](/s/JITAAVLRLOPOCD-UHFFFAOYSA-N.svg)
N-({[2,4'-Bipyridine]-4-yl}methyl)-1,3,5-trimethyl-1H-pyrazole-4-carboxamide
CAS 2034579-58-1C18H19N5O
![1-Methyl-3-phenyl-N-(4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-5-yl)-1H-pyrazole-5-carboxamide chemical structure, C18H19N5O, CAS 2034339-64-3](/s/RGCAHRDFQJPSJQ-UHFFFAOYSA-N.svg)
1-Methyl-3-phenyl-N-(4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-5-yl)-1H-pyrazole-5-carboxamide
CAS 2034339-64-3C18H19N5O
- 4-((1H-Imidazol-1-yl)methyl)-N-(4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-5-yl)benzamide2034258-22-3C18H19N5O
- 5-Methyl-1-phenyl-N-(4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-5-yl)-1H-pyrazole-4-carboxamide2034258-30-3C18H19N5O
- 1-((5-(1-Methyl-1H-pyrazol-4-yl)pyridin-3-yl)methyl)-3-(o-tolyl)urea2034462-40-1C18H19N5O
- 1-(1-Phenyl-2-(2H-1,2,3-triazol-2-yl)ethyl)-3-(m-tolyl)urea2320856-99-1C18H19N5O
- 1-(2-(2H-1,2,3-Triazol-2-yl)ethyl)-3-benzhydrylurea2320537-94-6C18H19N5O
- 4-Phenyl-N-{[1-(pyridin-3-yl)-1H-1,2,3-triazol-4-yl]methyl}butanamide2034463-08-4C18H19N5O
- 1-((2-(1-Methyl-1H-pyrazol-4-yl)pyridin-4-yl)methyl)-3-(o-tolyl)urea2034423-90-8C18H19N5O
- 2-(1-Methyl-1H-indol-3-yl)-1-{3-[(pyrazin-2-yl)amino]azetidin-1-yl}ethan-1-one2320685-74-1C18H19N5O
- 5-[3-(1H-Pyrazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carbonyl]-1H-1,3-benzodiazole2310012-61-2C18H19N5O
- 2-(6-Piperidin-4-yl-pyridazin-3-yl)-5-pyrazol-1-yl-phenol1562335-15-2C18H19N5O
- 3-Methyl-7-[6-(1-piperazinyl)-3-pyridazinyl]-6-isoquinolinol1647116-11-7C18H19N5O
- SARS-CoV-2 PLpro-IN-13053753-61-7C18H19N5O
- 5-Amino-1-(2,5-dimethylphenyl)-N-(2-methylphenyl)triazole-4-carboxamide953849-97-3C18H19N5O
- 2-(2-Benzyl-8,9-dimethyl-7H-pyrrolo[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-7-yl)ethanol921168-07-2C18H19N5O
- N-Benzyl-N,3,4-trimethyl-2-(1H-tetrazol-1-yl)benzamide1232794-35-2C18H19N5O
- 4-Butyl-N-[2-(1H-tetrazol-1-yl)phenyl]benzamide1282121-84-9C18H19N5O
- 1-tert-Butyl-5-(2-phenylpyrimidin-4-yl)-1H-pyrazole-3-carboxamide1403332-52-4C18H19N5O
- 9-Benzyl-6-[2-(morpholin-4-yl)ethenyl]-9H-purine920503-58-8C18H19N5O
- 6-(3,5-Dimethyl-1H-pyrazol-1-yl)-N-(1-phenylethyl)pyridazine-3-carboxamide1396875-64-1C18H19N5O
- 1-((1-Methyl-5-(pyridin-4-yl)-1H-pyrazol-3-yl)methyl)-3-(o-tolyl)urea1421513-56-5C18H19N5O
- 2-[2-(1-Methyl-1H-pyrazol-4-yl)piperidine-1-carbonyl]quinoxaline1953298-22-0C18H19N5O
- N-(1-{5H,6H,7H-cyclopenta[c]pyridazin-3-yl}azetidin-3-yl)-N-methyl-1,3-benzoxazol-2-amine2201582-14-9C18H19N5O
- 6-Methyl-2-{[1-(3-methylquinoxalin-2-yl)azetidin-3-yl]methyl}-2,3-dihydropyridazin-3-one2202117-66-4C18H19N5O
- 6-(4-Isopropylbenzyl)-3-(pyridin-3-ylamino)-1,2,4-triazin-5(4H)-one899943-60-3C18H19N5O
- 1-Methyl-6-({[(4-methylphenyl)methyl](prop-2-yn-1-yl)amino}methyl)-1H,4H,7H-pyrazolo[3,4-d]pyrimidin-4-one1281196-15-3C18H19N5O
- 3-{[1-Methyl-3-(pyridin-4-yl)-1H-pyrazol-5-yl]methyl}-1-(2-methylphenyl)urea2320213-01-0C18H19N5O
- 4-{4-[(Pyrimidin-2-yloxy)methyl]piperidin-1-yl}quinazoline2415628-85-0C18H19N5O
- 2-Cyclopropyl-1-[1-(6-methoxypyrimidin-4-yl)azetidin-3-yl]-1H-1,3-benzodiazole2549029-77-6C18H19N5O
- 1-Methyl-3-[4-(1,8-naphthyridin-2-yl)piperidin-1-yl]-1,2-dihydropyrazin-2-one2640948-18-9C18H19N5O
- 1-{2-Methylimidazo[1,2-b]pyridazine-6-carbonyl}-4-phenylpiperazine2640896-19-9C18H19N5O
- 6-Amino-5-(3-methoxy-2,6-dimethylphenyl)-2,3-dimethyl-5H-pyrrolo[2,3-b]pyrazine-7-carbonitrile2719751-15-0C18H19N5O
- 1-(4-(6-(1H-Pyrrolo[2,3-b]pyridin-4-yl)pyridin-2-yl)piperazin-1-yl)ethanone916172-26-4C18H19N5O
- N-(5-Cyano-2-(cyclohexylamino)pyrimidin-4-yl)benzamide918662-98-3C18H19N5O
- N-(4-Phenylbutan-2-yl)-4-(1H-tetrazol-1-yl)benzamide1092318-29-0C18H19N5O
- 2-(Indolin-5-ylamino)-8-isopropylpyrido[2,3-d]pyrimidin-7(8H)-one352361-44-5C18H19N5O
- 1-((1-Methyl-5-(pyridin-2-yl)-1H-pyrazol-3-yl)methyl)-3-(o-tolyl)urea1421504-84-8C18H19N5O
- 1-[4-(1H-Indazol-3-yl)-2-pyridinyl]-3-piperidinecarboxamide1627190-75-3C18H19N5O
- 2-[[4-Phenyl-6-(propan-2-ylamino)-1,3,5-triazin-2-yl]amino]phenol1446501-08-1C18H19N5O
- 5-Methoxy-8-[4-(pyrimidin-2-yl)piperazin-1-yl]isoquinoline1368066-87-8C18H19N5O
- 2-Cyano-N-cyclopentyl-3-[1-methyl-3-(pyridin-4-yl)-1H-pyrazol-4-yl]prop-2-enamide1424636-03-2C18H19N5O
- N-(2-Cyano-1,2,3,4-tetrahydronaphthalen-2-yl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide1947617-52-8C18H19N5O
- 2-[2-(1-Methyl-1H-pyrazol-5-yl)piperidine-1-carbonyl]quinoxaline2310208-60-5C18H19N5O
- 2-[3-(1-Methyl-1H-pyrazol-4-yl)piperidine-1-carbonyl]quinoxaline2320583-12-6C18H19N5O
- 3-{[1-Methyl-3-(pyridin-2-yl)-1H-pyrazol-5-yl]methyl}-1-(2-methylphenyl)urea2319635-61-3C18H19N5O
- N-[(Naphthalen-1-yl)methyl]-3-[(1H-1,2,3-triazol-1-yl)methyl]azetidine-1-carboxamide2309585-53-1C18H19N5O
- 2-Cyclopropyl-1-[1-(4-methoxypyrimidin-2-yl)azetidin-3-yl]-1H-1,3-benzodiazole2380080-45-3C18H19N5O
- 3-{4-[(1,3-Oxazol-4-yl)methyl]piperazin-1-yl}-6-phenylpyridazine2380087-04-5C18H19N5O
- N-(1-Benzyl-4-cyanopiperidin-4-yl)pyridazine-3-carboxamide2249597-63-3C18H19N5O
- 1-Benzyl-4-{3-methyl-3H-imidazo[4,5-b]pyridin-2-yl}piperazin-2-one2415542-65-1C18H19N5O
- 2-[1-(6-Methoxypyrimidin-4-yl)piperidin-4-yl]-1,8-naphthyridine2640886-02-6C18H19N5O
- 2-Methyl-3-{3-[(pyrazin-2-yloxy)methyl]pyrrolidin-1-yl}quinoxaline2877766-58-8C18H19N5O
- N-Benzyl-2-(3-{[1,2,4]triazolo[4,3-a]pyridin-3-yl}azetidin-1-yl)acetamide2877643-81-5C18H19N5O
- 3-[(1-{2-Methylpyrido[3,4-d]pyrimidin-4-yl}piperidin-3-yl)oxy]pyridine2877649-91-5C18H19N5O
- (NE)-N-[2H-1,2,3-Benzotriazol-2-yl(morpholin-4-yl)methylidene]-4-methylaniline340756-33-4C18H19N5O
- (E)-4-(2-(9-Benzyl-9H-purin-6-yl)vinyl)morpholineC18H19N5O
- N-(4-Butylphenyl)-4-(2H-tetrazol-5-yl)benzamide651769-63-0C18H19N5O
- N-[4-(2-Methylpropyl)phenyl]-4-(2H-tetrazol-5-yl)benzamide651769-62-9C18H19N5O
- N-{4-[(E)-{4-[(2-Cyanoethyl)(methyl)amino]phenyl}diazenyl]phenyl}acetamide59527-99-0C18H19N5O
- 7-(Cyclohexylamino)-2-phenylpyrimido[4,5-d]pyrimidin-4(1H)-one918663-22-6C18H19N5O
- 2-[4-(6-Cyclopropylpyridazin-3-yl)piperazin-1-yl]-1,3-benzoxazole2380169-99-1C18H19N5O
- 5-(3-{[(6-Cyclopropylpyridazin-3-yl)oxy]methyl}pyrrolidin-1-yl)pyridine-2-carbonitrile2549040-30-2C18H19N5O
- 3-(3-{[(6-Cyclopropylpyridazin-3-yl)oxy]methyl}pyrrolidin-1-yl)pyridine-4-carbonitrile2549048-61-3C18H19N5O
- 3-(3-{[(6-Cyclopropylpyridazin-3-yl)oxy]methyl}pyrrolidin-1-yl)pyridine-2-carbonitrile2549023-43-8C18H19N5O
- 2-{4-[(Pyrazin-2-yloxy)methyl]piperidin-1-yl}quinoxaline2549014-85-7C18H19N5O
- 4-{3-[(Pyrimidin-2-yloxy)methyl]piperidin-1-yl}quinazoline2549063-83-2C18H19N5O
- 2-[1-(1-Methyl-1H-imidazole-4-carbonyl)piperidin-4-yl]-1,8-naphthyridine2640945-75-9C18H19N5O
- 4-[4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl]quinazoline2742010-34-8C18H19N5O
- 2-[1-(1-Methyl-1H-imidazole-5-carbonyl)piperidin-4-yl]-1,8-naphthyridine2640954-76-1C18H19N5O
- 2-[1-(1-Methyl-1H-pyrazole-5-carbonyl)piperidin-4-yl]-1,8-naphthyridine2640954-65-8C18H19N5O
- 2-[1-(1-Methyl-1H-pyrazole-4-carbonyl)piperidin-4-yl]-1,8-naphthyridine2640945-81-7C18H19N5O
- 2-[1-(1-Methyl-1H-pyrazole-3-carbonyl)piperidin-4-yl]-1,8-naphthyridine2640866-70-0C18H19N5O
- 1-[4-(1,8-Naphthyridin-2-yl)piperidin-1-yl]-2-(1H-pyrazol-1-yl)ethan-1-one2640934-52-5C18H19N5O
- 4-{4-[(6-Methylpyrimidin-4-yl)amino]piperidine-1-carbonyl}benzonitrile2415487-39-5C18H19N5O
- 2-(4-{5H,6H,7H-Cyclopenta[d]pyrimidin-4-yl}piperazin-1-yl)-1,3-benzoxazole2415516-87-7C18H19N5O
- 2-[4-(2-Cyclopropylpyrimidin-4-yl)piperazin-1-yl]-1,3-benzoxazole2415516-83-3C18H19N5O
- 2-{4-[(Pyrimidin-2-yloxy)methyl]piperidin-1-yl}quinoxaline2415552-77-9C18H19N5O
Frequently asked questions
What is the molar mass of C18H19N5O?
The molar mass of C18H19N5O is 321.38 g/mol, calculated from standard atomic weights for 18 carbon atoms, 19 hydrogen atoms, 5 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 321.1590 Da.
How many compounds have the formula C18H19N5O?
CompoundList lists 213 compounds with the molecular formula C18H19N5O, including 5-Amino-1-benzyl-N-(3-ethylphenyl)-1H-1,2,3-triazole-4-carboxamide, N-(4-tert-Butylphenyl)-4-(1H-tetraazol-5-yl)benzamide, 1-(3,5-Dimethylphenyl)-3-[4-(1H-1,2,4-triazol-1-ylmethyl)phenyl]urea. 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 C18H19N5O?
C18H19N5O 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.