Molecular formula
C16H18N4O
242 compounds have this formula on CompoundList.
- Molar mass
- 282.35g/mol
- Monoisotopic mass
- 282.1481Da
- Atoms
- 39
- Elements
- 4
- Rings plus double bonds
- 10
The formula C16H18N4O describes a molecule made of 16 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 × 1668.06%12.011 × 16 = 192.176 g/mol
- H Hydrogen × 186.43%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 419.84%14.007 × 4 = 56.028 g/mol
- O Oxygen × 15.67%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C16H18N4O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 242 compounds
3-Isopropyl-N'-(3-phenyl-2-propenylidene)-1H-pyrazole-5-carbohydrazide
CAS 307975-75-3C16H18N4O
N'-(5-Acetyl-2-methyl-6-phenyl-4-pyrimidinyl)-N,N-dimethylimidoformamide
CAS 1164516-21-5C16H18N4O
Suprafenacine
CAS 1477482-50-0C16H18N4O
5-Cyclopropyl-N-(1-phenylpropylideneamino)-1H-pyrazole-3-carboxamide
CAS 1359880-13-9C16H18N4O
![1-[4-(4-Pyrimidin-2-ylpiperazin-1-yl)phenyl]ethanone chemical structure, C16H18N4O, CAS 851631-13-5](/s/DUDHGQZWCBDSHR-UHFFFAOYSA-N.svg)
1-[4-(4-Pyrimidin-2-ylpiperazin-1-yl)phenyl]ethanone
CAS 851631-13-5C16H18N4O
![2-[(E)-{[4-(Pyridin-2-yl)piperazin-1-yl]imino}methyl]phenol chemical structure, C16H18N4O, CAS 305351-50-2](/s/YGMCRQACFHLUCL-QGOAFFKASA-N.svg)
2-[(E)-{[4-(Pyridin-2-yl)piperazin-1-yl]imino}methyl]phenol
CAS 305351-50-2C16H18N4O
![N-(1,6-Dimethylpyrazolo[3,4-b]quinolin-3-yl)butanamide chemical structure, C16H18N4O, CAS 714228-29-2](/s/IIVIFQQHWKEYLG-UHFFFAOYSA-N.svg)
N-(1,6-Dimethylpyrazolo[3,4-b]quinolin-3-yl)butanamide
CAS 714228-29-2C16H18N4O
![N-(8-Methyl-1-propylpyrazolo[3,4-b]quinolin-3-yl)acetamide chemical structure, C16H18N4O, CAS 714231-87-5](/s/HNSAHXTVBWYOOL-UHFFFAOYSA-N.svg)
N-(8-Methyl-1-propylpyrazolo[3,4-b]quinolin-3-yl)acetamide
CAS 714231-87-5C16H18N4O
![3-[(E)-(4-Pyridin-2-ylpiperazin-1-yl)iminomethyl]phenol chemical structure, C16H18N4O, CAS 305351-36-4](/s/QBKQLNDUVGBJQB-QGOAFFKASA-N.svg)
3-[(E)-(4-Pyridin-2-ylpiperazin-1-yl)iminomethyl]phenol
CAS 305351-36-4C16H18N4O
4-(((4-(2-Pyridinyl)-1-piperazinyl)imino)methyl)phenol
CAS 305351-49-9C16H18N4O
![N-[2-Amino-5-(4-pyridinyl)phenyl]-1-pyrrolidinecarboxamide chemical structure, C16H18N4O, CAS 1404562-17-9](/s/YZXBMJVMSBSGMM-UHFFFAOYSA-N.svg)
N-[2-Amino-5-(4-pyridinyl)phenyl]-1-pyrrolidinecarboxamide
CAS 1404562-17-9C16H18N4O
![N-(1,8-Dimethylpyrazolo[3,4-b]quinolin-3-yl)butanamide chemical structure, C16H18N4O, CAS 714949-13-0](/s/IKGBPNGSYYHJCN-UHFFFAOYSA-N.svg)
N-(1,8-Dimethylpyrazolo[3,4-b]quinolin-3-yl)butanamide
CAS 714949-13-0C16H18N4O
3-((2-Benzimidazolylmethyl)amino)-5-ethyl-6-methlpyridin-2(1H)-one
CAS 135525-67-6C16H18N4O
![N11-(t-Butyl)-N5-methyl-5,11-dihydro-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one chemical structure, C16H18N4O, CAS 133627-01-7](/s/CNQFYBOQUAUFJV-UHFFFAOYSA-N.svg)
N11-(t-Butyl)-N5-methyl-5,11-dihydro-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one
CAS 133627-01-7C16H18N4O
Anthranilic (4-(dimethylamino)benzylidene)hydrazide
CAS 94707-87-6C16H18N4O
N11-Ethyl-2,3,N5-trimethyl-5,11-dihydro-6H-dipyrido(3,2-b:2',3'-e)(1,4)diazepin-6-one
CAS 133627-27-7C16H18N4O
(Z)-3-(4-(4-(Dimethylamino)benzylidene)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)propanenitrile
CAS 325475-28-3C16H18N4O
![9-Methyl-2-(prop-2-enylamino)-3-(prop-2-enyliminomethyl)pyrido[1,2-a]pyrimidin-4-one chemical structure, C16H18N4O, CAS 469879-22-9](/s/RBADUERHCQMKIU-UHFFFAOYSA-N.svg)
9-Methyl-2-(prop-2-enylamino)-3-(prop-2-enyliminomethyl)pyrido[1,2-a]pyrimidin-4-one
CAS 469879-22-9C16H18N4O
![Pyridin-3-yl-[4-(pyridin-3-ylmethyl)piperazin-1-yl]methanone chemical structure, C16H18N4O, CAS 420826-08-0](/s/PUSOUFAESSIWBV-UHFFFAOYSA-N.svg)
Pyridin-3-yl-[4-(pyridin-3-ylmethyl)piperazin-1-yl]methanone
CAS 420826-08-0C16H18N4O
![7-Methyl-2-(prop-2-enylamino)-3-(prop-2-enyliminomethyl)pyrido[1,2-a]pyrimidin-4-one chemical structure, C16H18N4O, CAS 306281-29-8](/s/BPOKMFNIOITIED-UHFFFAOYSA-N.svg)
7-Methyl-2-(prop-2-enylamino)-3-(prop-2-enyliminomethyl)pyrido[1,2-a]pyrimidin-4-one
CAS 306281-29-8C16H18N4O
![Pyridin-3-yl-[4-(pyridin-2-ylmethyl)piperazin-1-yl]methanone chemical structure, C16H18N4O, CAS 420825-81-6](/s/SNPDJDPFCGEZFH-UHFFFAOYSA-N.svg)
Pyridin-3-yl-[4-(pyridin-2-ylmethyl)piperazin-1-yl]methanone
CAS 420825-81-6C16H18N4O
![5-Benzyl-1-(tert-butyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one chemical structure, C16H18N4O, CAS 863448-14-0](/s/NFBXBEKSEMBEHT-UHFFFAOYSA-N.svg)
5-Benzyl-1-(tert-butyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one
CAS 863448-14-0C16H18N4O
![3-{[2-(5-Methyl-1,2,4-oxadiazol-3-yl)piperidin-1-yl]methyl}benzonitrile chemical structure, C16H18N4O, CAS 1326860-41-6](/s/SOLPAAIDRMLAHV-UHFFFAOYSA-N.svg)
3-{[2-(5-Methyl-1,2,4-oxadiazol-3-yl)piperidin-1-yl]methyl}benzonitrile
CAS 1326860-41-6C16H18N4O
![1-[4-(4-Pyrazin-2-ylpiperazin-1-yl)phenyl]ethanone chemical structure, C16H18N4O, CAS 420844-69-5](/s/LVOHSTUZXLFMAM-UHFFFAOYSA-N.svg)
1-[4-(4-Pyrazin-2-ylpiperazin-1-yl)phenyl]ethanone
CAS 420844-69-5C16H18N4O
- 2-Methyl-N-[2-(pyrrolidin-1-yl)pyrimidin-5-yl]benzamide1340689-21-5C16H18N4O
- 5-Amino-4-(1H-benzimidazol-2-yl)-1-cyclopentyl-1,2-dihydro-3H-pyrrol-3-one857492-78-5C16H18N4O
- 6-(1H-Pyrrol-2-yl-methyl)-4,5,6,7-tetrahydro-5-methylimidazo(4,5,1-jk)(1,4)benzodiazepin-2(1H)-one131514-93-7C16H18N4O
- 8-Aminoethyl-N11-ethyl-N6-methyl-6,11-dihydro-5H-pyrido(2,3-b)(1,5)benzodiazepin-5-one133626-80-9C16H18N4O
- N-[3-(5,6,7,8-Tetrahydro[1,2,4]triazolo[4,3-a]pyridin-3-yl)phenyl]cyclopropanecarboxamide1798632-46-8C16H18N4O
- Hydroxy-PP-Me833481-77-9C16H18N4O
- 1-(2,3-Dimethylphenyl)-5-propyl-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one895020-80-1C16H18N4O
- 3-(4-Amino-5-p-tolyl-7H-pyrrolo[2,3-d]pyrimidin-7-yl)propan-1-ol821794-94-9C16H18N4O
- 1H-Indole-2-carboxamide,N-[4-(1H-imidazol-1-yl)butyl]-106876-16-8C16H18N4O
- 1H-Indole-2-carboxamide,N-[3-(1H-imidazol-1-yl)propyl]-1-methyl-106876-06-6C16H18N4O
- 4'-((p-(Dimethylamino)phenyl)azo)acetanilide1591-56-6C16H18N4O
- 3-Amino-N-cyclopentyl-6-phenyl-2-pyrazinecarboxamide625459-32-7C16H18N4O
- (8beta)-6-Methyl-9,10-didehydroergoline-8-carbohydrazide5256-61-1C16H18N4O
- (4-Aminophenyl)[4-(2-pyridinyl)piperazino]methanone885949-69-9C16H18N4O
- 1H-Indole-2-carboxamide,N-[3-(4-methyl-1H-imidazol-1-yl)propyl]-106876-14-6C16H18N4O
- N-[2-(Dimethylamino)ethyl]-1H-perimidine-2-carboxamide110191-76-9C16H18N4O
- 2-Ethyl-5-methyl-6-(2-methylbenzyl)[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one878994-94-6C16H18N4O
- N-Methyl-4'-(p-methylaminophenylazo)acetanilide53499-68-6C16H18N4O
- 1-(7-(4-Ethylphenyl)-5-methyl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)ethanone496039-87-3C16H18N4O
- 2-Ethyl-5-phenyl-6-propyl[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one886148-39-6C16H18N4O
- (E)-2-(2-(Isoquinolin-1-yl)cyclohexylidene)hydrazinecarboxamide881450-86-8C16H18N4O
- 2-Amino-7-[4-(dimethylamino)phenyl]-6,7,8-trihydroquinazolin-5-one669750-80-5C16H18N4O
- N-(3-((2-Methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)amino)phenyl)acetamide927967-05-3C16H18N4O
- 1-(3,4-Dimethylphenyl)-4-isopropyl-1,6-dihydro-7H-pyrazolo[3,4-d]pyridazin-7-one1105196-58-4C16H18N4O
- 3-(3,3-Dimethyltriazeno)-N-phenyl-p-toluamide76765-37-2C16H18N4O
- Pyridin-4-yl[4-(pyridin-4-ylmethyl)piperazin-1-yl]methanone355813-81-9C16H18N4O
- 2-(4-Phenylpiperazin-1-yl)pyridine-3-carboxamide101512-13-4C16H18N4O
- 4-Anilino-N-[(E)-pyridin-3-ylmethylideneamino]butanamide300586-66-7C16H18N4O
- N'-Phenyl-3-(2-phenylhydrazono)butanehydrazide67790-05-0C16H18N4O
- 2-Methyl-4-(4-methylpiperazin-1-yl)benzofuro[3,2-d]pyrimidine844458-07-7C16H18N4O
- 4-Amino-7-isopropyl-5-(4-methoxyphenyl) pyrrolo[2,3-d]pyrimidine213744-87-7C16H18N4O
- N-(3-Phenylpropyl)-5H-pyrrolo[3,4-d]pyrimidine-6(7H)-carboxamide1448035-21-9C16H18N4O
- 2-(3-Methylphenyl)-5-(4-methylpiperazin-1-yl)-1,3-oxazole-4-carbonitrile613651-18-6C16H18N4O
- 2-Amino-7,7-dimethyl-4-(phenylamino)-6,7,8-trihydroquinazolin-5-one879593-37-0C16H18N4O
- 5-Cyclopropyl-1-(4-methylphenyl)-N-(prop-2-en-1-yl)-1H-1,2,3-triazole-4-carboxamide954792-66-6C16H18N4O
- N-(2-(1H-Indol-3-yl)ethyl)-1,3-dimethyl-1H-pyrazole-4-carboxamide942772-43-2C16H18N4O
- N-[2-(1H-Imidazol-4-yl)ethyl]-3-(1H-indol-3-yl)propanamide1484577-55-0C16H18N4O
- N-[2-(1H-Imidazol-5-yl)ethyl]-2-(1-methyl-1H-indol-3-yl)acetamide1401574-03-5C16H18N4O
- (7,8-Dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)(3-(dimethylamino)phenyl)methanone1797020-02-0C16H18N4O
- 3-((p-Dimethylaminophenyl)azo)acetanilide21677-26-9C16H18N4O
- 2-Methyl-1-(2-methylpropyl)-7-phenylpurin-6-one83325-07-9C16H18N4O
- 2-(2-Methylphenyl)-5-(4-methylpiperazin-1-yl)-1,3-oxazole-4-carbonitrile613650-84-3C16H18N4O
- N'-[(E)-(4-tert-Butylphenyl)methylidene]-2-pyrazinecarbohydrazide304908-28-9C16H18N4O
- 4-(Dimethylamino)benzaldehyde N-phenylsemicarbazone199791-23-6C16H18N4O
- 5-Butyl-1-(2-methylphenyl)pyrazolo[3,4-d]pyrimidin-4-one895008-18-1C16H18N4O
- N-(1H-Pyrazol-4-ylmethyl)-1H-indole-3-butanamide1179674-79-3C16H18N4O
- 2-(2-Cyclopentylethyl)-7-(2-furyl)[1,2,4]triazolo[1,5-a]pyrimidine1435978-79-2C16H18N4O
- 1-Allyl-3-(3-(6,7-dihydro-5H-pyrrolo[1,2-a]imidazol-3-yl)phenyl)urea1421504-96-2C16H18N4O
- 1-Allyl-3-(4-(6,7-dihydro-5H-pyrrolo[1,2-a]imidazol-3-yl)phenyl)urea1421472-65-2C16H18N4O
- N-{[4-(Pyrrolidin-1-yl)pyrimidin-2-yl]methyl}benzamide1797222-36-6C16H18N4O
- N-((4-(Dimethylamino)pyrimidin-2-yl)methyl)cinnamamide1798405-66-9C16H18N4O
- N-(2-(1H-Imidazo[1,2-b]pyrazol-1-yl)ethyl)-2-(m-tolyl)acetamide1790196-07-4C16H18N4O
- Cyclobutyl(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)methanone2034424-79-6C16H18N4O
- 1-(3-(4-Methoxybenzyl)-3H-imidazo[4,5-c]pyridin-6-yl)ethanamine1445856-53-0C16H18N4O
- 6-(Pyrrolidin-1-yl)-N-(p-tolyl)pyrimidine-4-carboxamide1905824-98-7C16H18N4O
- 3-Methyl-N-(2-(6-methyl-1H-imidazo[1,2-b]pyrazol-1-yl)ethyl)benzamide2034634-42-7C16H18N4O
- 7-(Cyclopropylamino)-2-(4-methylphenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one2120140-76-1C16H18N4O
- (E)-1-(4-(2H-1,2,3-Triazol-2-yl)piperidin-1-yl)-3-phenylprop-2-en-1-one2209319-29-7C16H18N4O
- 4-[(e)-(4-Amino-2-methylphenyl)diazenyl]-n,n-dimethylbenzamide6956-88-3C16H18N4O
- N-[1-(2-Methylpropyl)pyrazolo[3,4-b]quinolin-3-yl]acetamide578756-19-1C16H18N4O
- N-{2-[(3-Cyano-6,8-dimethyl-2-quinolinyl)amino]ethyl}acetamide606105-63-9C16H18N4O
- 5-Butyl-1-(p-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one912621-59-1C16H18N4O
- 4-Isopropyl-6-methyl-1-(o-tolyl)-1H-pyrazolo[3,4-d]pyridazin-7(6H)-one955839-67-5C16H18N4O
- 1,6-Dimethyl-2-oxo-4-piperazin-1-yl-1,2-dihydro-quinoline-3-carbonitrile749865-70-1C16H18N4O
- 1,3-Bis(3-aminophenyl)tetrahydropyrimidin-2(1H)-one88230-28-8C16H18N4O
- N-(2-((6-Methylpyridazin-3-yl)amino)ethyl)cinnamamide1173539-32-6C16H18N4O
- N-(Cyanomethyl)-2-(3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)-N-methylacetamide1311750-50-1C16H18N4O
- N-(1-Cyano-3-methylbutyl)-1-phenyl-1H-pyrazole-3-carboxamide1333833-37-6C16H18N4O
- N-[Cyano(2-methylphenyl)methyl]-3-(1-methyl-1H-pyrazol-4-yl)propanamide1355826-20-8C16H18N4O
- N-(1H-1,3-Benzodiazol-2-yl)-1-(prop-2-yn-1-yl)piperidine-4-carboxamide1389067-51-9C16H18N4O
- 1-((6-Ethoxypyridin-2-yl)methyl)-3-methyl-1H-indazol-4-amine1383474-97-2C16H18N4O
- 4-Cyclobutyl-5-(5-ethoxy-4H-1,2,4-triazol-3-yl)-2-methylbenzonitrile1399182-78-5C16H18N4O
- N-(1H-Imidazol-2-yl)-2-[1-(propan-2-yl)-1H-indol-3-yl]acetamide1401540-76-8C16H18N4O
- N-(1-Methyl-1H-pyrazol-4-yl)-1-(propan-2-yl)-1H-indole-6-carboxamide1435975-91-9C16H18N4O
- N-(1-Methyl-1H-pyrazol-3-yl)-1-(propan-2-yl)-1H-indole-6-carboxamide1436002-99-1C16H18N4O
- 6-(Pyrrolidin-1-yl)-N-(m-tolyl)pyridazine-3-carboxamide1396785-38-8C16H18N4O
Frequently asked questions
What is the molar mass of C16H18N4O?
The molar mass of C16H18N4O is 282.35 g/mol, calculated from standard atomic weights for 16 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 282.1481 Da.
How many compounds have the formula C16H18N4O?
CompoundList lists 242 compounds with the molecular formula C16H18N4O, including 3-Isopropyl-N'-(3-phenyl-2-propenylidene)-1H-pyrazole-5-carbohydrazide, N'-(5-Acetyl-2-methyl-6-phenyl-4-pyrimidinyl)-N,N-dimethylimidoformamide, Suprafenacine. 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 C16H18N4O?
C16H18N4O has a degree of unsaturation of 10. 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.