Molecular formula
C18H18N4O
210 compounds have this formula on CompoundList.
- Molar mass
- 306.37g/mol
- Monoisotopic mass
- 306.1481Da
- Atoms
- 41
- Elements
- 4
- Rings plus double bonds
- 12
The formula C18H18N4O describes a molecule made of 18 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 × 1870.57%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 185.92%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 418.29%14.007 × 4 = 56.028 g/mol
- O Oxygen × 15.22%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C18H18N4O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 210 compounds
![3-Methyl-1-(oxolan-2-ylmethylamino)pyrido[1,2-a]benzimidazole-4-carbonitrile chemical structure, C18H18N4O, CAS 612522-65-3](/s/VYPPKKSWQVAZMX-UHFFFAOYSA-N.svg)
3-Methyl-1-(oxolan-2-ylmethylamino)pyrido[1,2-a]benzimidazole-4-carbonitrile
CAS 612522-65-3C18H18N4O
![5-[(3-Phenylmethoxyphenyl)methyl]pyrimidine-2,4-diamine chemical structure, C18H18N4O, CAS 69945-60-4](/s/PUMGLGGVAIIWCB-UHFFFAOYSA-N.svg)
5-[(3-Phenylmethoxyphenyl)methyl]pyrimidine-2,4-diamine
CAS 69945-60-4C18H18N4O
![Morpholino-[(3-phenylimidazo[1,5-a]pyridin-1-yl)methylene]amine chemical structure, C18H18N4O, CAS 468073-96-3](/s/WZTHLFSSDQYQEH-XMHGGMMESA-N.svg)
Morpholino-[(3-phenylimidazo[1,5-a]pyridin-1-yl)methylene]amine
CAS 468073-96-3C18H18N4O
Solvent Yellow 18
CAS 6407-78-9C18H18N4O
![5-[(4-Benzyloxy)benzyl]-2,4-diaminopyrimidine chemical structure, C18H18N4O, CAS 49873-11-2](/s/NTVMHTFWSNGDLC-UHFFFAOYSA-N.svg)
5-[(4-Benzyloxy)benzyl]-2,4-diaminopyrimidine
CAS 49873-11-2C18H18N4O
Imidazopyridazin 1
CAS 869650-21-5C18H18N4O
![3-[(E)-(Benzylimino)methyl]-9-methyl-2-(methylamino)-4H-pyrido[1,2-a]pyrimidin-4-one chemical structure, C18H18N4O, CAS 342596-96-7](/s/RWOZXIGIGUNXAW-UHFFFAOYSA-N.svg)
3-[(E)-(Benzylimino)methyl]-9-methyl-2-(methylamino)-4H-pyrido[1,2-a]pyrimidin-4-one
CAS 342596-96-7C18H18N4O
N-(Oxolan-2-ylmethyl)-2-pyridin-3-ylquinazolin-4-amine
CAS 732964-62-4C18H18N4O
3-(4-Methoxyphenyl)-4H-pyrazol-4-one N-(3,5-dimethylphenyl)hydrazone
CAS 338400-37-6C18H18N4O
![N-[(E)-(1-Methylpyrrol-2-yl)methylideneamino]-2-(naphthalen-2-ylamino)acetamide chemical structure, C18H18N4O, CAS 328541-91-9](/s/WVNIXXVQFKJYRE-UDWIEESQSA-N.svg)
N-[(E)-(1-Methylpyrrol-2-yl)methylideneamino]-2-(naphthalen-2-ylamino)acetamide
CAS 328541-91-9C18H18N4O
![3-Methyl-1-(4-methylphenyl)-4-[[(4-methyl-2-pyridinyl)imino]methyl]-1H-pyrazol-5-ol chemical structure, C18H18N4O, CAS 312309-00-5](/s/YSQINMYWFUNSFM-UHFFFAOYSA-N.svg)
3-Methyl-1-(4-methylphenyl)-4-[[(4-methyl-2-pyridinyl)imino]methyl]-1H-pyrazol-5-ol
CAS 312309-00-5C18H18N4O
![N-[(E)-(1-Methylpyrrol-2-yl)methylideneamino]-2-(naphthalen-1-ylamino)acetamide chemical structure, C18H18N4O, CAS 328538-34-7](/s/UTNXQIIIVJUOPU-UDWIEESQSA-N.svg)
N-[(E)-(1-Methylpyrrol-2-yl)methylideneamino]-2-(naphthalen-1-ylamino)acetamide
CAS 328538-34-7C18H18N4O
![5-Methyl-4-{[(E)-6-methyl-pyridin-2-ylimino]-methyl}-2-p-tolyl-2H-pyrazol-3-ol chemical structure, C18H18N4O, CAS 312309-58-3](/s/MJFDNWOOAXKERO-YBFXNURJSA-N.svg)
5-Methyl-4-{[(E)-6-methyl-pyridin-2-ylimino]-methyl}-2-p-tolyl-2H-pyrazol-3-ol
CAS 312309-58-3C18H18N4O
![11-Methyl-5H-spiro[benzo[h][1,2,4]triazolo[3,4-b]quinazoline-6,1'-cyclopentan]-7(11H)-one chemical structure, C18H18N4O, CAS 304876-46-8](/s/JPLCZFIBKMJYKL-UHFFFAOYSA-N.svg)
11-Methyl-5H-spiro[benzo[h][1,2,4]triazolo[3,4-b]quinazoline-6,1'-cyclopentan]-7(11H)-one
CAS 304876-46-8C18H18N4O
N~4~,N~4~-dimethyl-5-(4-phenoxyphenyl)-2,4-pyrimidinediamine
CAS 338402-75-8C18H18N4O
![N-(2,6-Dimethylphenyl)-N'-[2-(1H-imidazol-1-yl)phenyl]urea chemical structure, C18H18N4O, CAS 866042-18-4](/s/NZURLXJRFWJKIH-UHFFFAOYSA-N.svg)
N-(2,6-Dimethylphenyl)-N'-[2-(1H-imidazol-1-yl)phenyl]urea
CAS 866042-18-4C18H18N4O
![2-{(2E)-2-[1-(4-Methoxyphenyl)ethylidene]hydrazinyl}-3-methylquinoxaline chemical structure, C18H18N4O, CAS 370873-78-2](/s/OBWMWOYCLOHKGE-CIAFOILYSA-N.svg)
2-{(2E)-2-[1-(4-Methoxyphenyl)ethylidene]hydrazinyl}-3-methylquinoxaline
CAS 370873-78-2C18H18N4O
![4-Methyl-4H-spiro[benzo[h][1,2,4]triazolo[4,3-a]quinazoline-6,1'-cyclopentan]-5(7H)-one chemical structure, C18H18N4O, CAS 302802-33-1](/s/XXWQCKNTRKKUBZ-UHFFFAOYSA-N.svg)
4-Methyl-4H-spiro[benzo[h][1,2,4]triazolo[4,3-a]quinazoline-6,1'-cyclopentan]-5(7H)-one
CAS 302802-33-1C18H18N4O
1,2-Bis(1-methyl-1H-benzimidazol-2-yl)ethanol
CAS 93880-54-7C18H18N4O
![(7-Methyl-5-phenylpyrazolo[1,5-a]pyrimidin-2-yl)-pyrrolidin-1-ylmethanone chemical structure, C18H18N4O, CAS 312635-06-6](/s/HBPPEAAQEOKRFE-UHFFFAOYSA-N.svg)
(7-Methyl-5-phenylpyrazolo[1,5-a]pyrimidin-2-yl)-pyrrolidin-1-ylmethanone
CAS 312635-06-6C18H18N4O
RefChem:388705
CAS 5863-27-4C18H18N4O
N-Benzyl-1-(3,4-dimethylphenyl)-1H-1,2,3-triazole-4-carboxamide
CAS 1105215-17-5C18H18N4O
![N,N-Dimethyl-4-[(4-methylphthalazin-1-yl)amino]benzamide chemical structure, C18H18N4O, CAS 309921-82-2](/s/GLFGWXVYVDJANV-UHFFFAOYSA-N.svg)
N,N-Dimethyl-4-[(4-methylphthalazin-1-yl)amino]benzamide
CAS 309921-82-2C18H18N4O
![(E)-9-Methyl-2-(methylamino)-3-((p-tolylimino)methyl)-4H-pyrido[1,2-a]pyrimidin-4-one chemical structure, C18H18N4O, CAS 342596-95-6](/s/BLXOJORLYGDFBY-UHFFFAOYSA-N.svg)
(E)-9-Methyl-2-(methylamino)-3-((p-tolylimino)methyl)-4H-pyrido[1,2-a]pyrimidin-4-one
CAS 342596-95-6C18H18N4O
- N8 Pyrido[2,3-d]pyrimidin-7-one deriv. 45211245-68-0C18H18N4O
- (E)-N'-((1-Ethyl-1H-benzo[d]imidazol-2-yl)methylene)-2-phenylacetohydrazide613219-68-4C18H18N4O
- (E)-3-(1H-Benzo[d]imidazol-1-yl)-N'-benzylidene-2-methylpropanehydrazide518018-78-5C18H18N4O
- N-[N'-[2-(1H-Indol-3-yl)ethyl]carbamimidoyl]benzamide667431-11-0C18H18N4O
- N-(3-{Imidazo[1,2-a]pyrimidin-2-yl}phenyl)cyclopentanecarboxamide863020-05-7C18H18N4O
- 1-(4-Ethylphenyl)-5-methyl-N-phenyl-1H-1,2,3-triazole-4-carboxamide866872-74-4C18H18N4O
- 3-[(3,4-Dimethylphenyl)amino]-6-(4-methylphenyl)-1,2,4-triazin-5-ol881432-57-1C18H18N4O
- N-(2-Ethylphenyl)-4-(5-methyl-1H-1,2,3-triazol-1-yl)benzamide915931-23-6C18H18N4O
- N-Benzyl-N-methyl-1-(4-methylphenyl)-1H-1,2,3-triazole-4-carboxamide1207055-72-8C18H18N4O
- [4-(1H-Benzimidazol-2-yl)piperidin-1-yl](pyridin-3-yl)methanone845539-69-7C18H18N4O
- 1,5-Diphenyl-N-(propan-2-yl)-1H-1,2,3-triazole-4-carboxamide899942-31-5C18H18N4O
- (2-Aminophenyl)(1-(3-isopropylphenyl)-1H-1,2,3-triazol-4-yl)methanone1437325-71-7C18H18N4O
- 1-(4-Methylphenyl)-N-(2-phenylethyl)-1H-1,2,3-triazole-4-carboxamide951611-20-4C18H18N4O
- 2-{4-[(3s)-Pyrrolidin-3-Ylamino]quinazolin-2-Yl}phenol1146159-38-7C18H18N4O
- 6-Methoxy-4-methyl-N-[(E)-(6-methyl-2-pyridinyl)methylideneamino]quinolin-2-amine71508-86-6C18H18N4O
- 6-Phenyl-2-piperidinopyrido[4,3-d]pyrimidin-5(6H)-one1030501-63-3C18H18N4O
- 6-(4-Methylbenzyl)-3-(m-tolylamino)-1,2,4-triazin-5(4H)-one898650-72-1C18H18N4O
- (1H-Benzimidazol-2-yl)(4-phenylpiperazin-1-yl)methanone73903-13-6C18H18N4O
- 6-(3-(Pyridin-3-yl)phenethyl)-2-amino-3-methylpyrimidin-4(3H)-one883889-87-0C18H18N4O
- 6-(4-Methylbenzyl)-3-(o-tolylamino)-1,2,4-triazin-5(4H)-one898651-27-9C18H18N4O
- N-(2-Methyl-2-(pyridin-2-yl)propyl)quinoxaline-2-carboxamide923600-00-4C18H18N4O
- 1-Ethyl-3-(8-methyl-5-pyridin-3-ylisoquinolin-3-yl)urea1338255-16-5C18H18N4O
- 1-Ethyl-3-(8-methyl-5-pyridin-4-ylisoquinolin-3-yl)urea1338255-30-3C18H18N4O
- 2-[4-(Pyridin-2-yl)piperazine-1-carbonyl]-1H-indole148692-48-2C18H18N4O
- 2-(1H-Indazol-3-yl)-N-(2-methoxyethyl)-1H-indol-6-amine1294514-61-6C18H18N4O
- 1-(2-Methoxyethyl)-4-methyl-2,3-dihydro-1H-pyrrolo[3',2':5,6]pyrido[1,2-a]benzimidazole-5-carbonitrile876721-75-4C18H18N4O
- 5-(4-Methoxybenzyl)-2-phenylpyrimidine-4,6-diamine163590-00-9C18H18N4O
- 2-Amino-N-(4-(1-cyanocyclopentyl)phenyl)nicotinamide2244190-24-5C18H18N4O
- 5-[(2S)-2-Cyanopyrrolidin-1-yl]-2-(3-phenylpropyl)-1,3-oxazole-4-carbonitrile3007689-71-3C18H18N4O
- 2-Pyrazolin-5-one, 4-[[p-(dimethylamino)phenyl]imino]-3-methyl-1-phenyl-1456-89-9C18H18N4O
- 2-(4-Phenylpiperazin-1-yl)quinazolin-4(3H)-one129663-89-4C18H18N4O
- 4-[4-(4-Aminobenzoyl)piperazin-1-yl]benzonitrile885949-73-5C18H18N4O
- 4H-s-Triazolo(4,3-a)(1,5)benzodiazepine, 5,6-dihydro-1-(p-methoxyphenyl)-4-methyl-54028-93-2C18H18N4O
- 4H-s-Triazolo(4,3-a)(1,5)benzodiazepine, 5,6-dihydro-9-methoxy-4-methyl-1-phenyl-54028-95-4C18H18N4O
- 3-(4-Phenylpiperazine-1-carbonyl)-1H-indazole878596-33-9C18H18N4O
- 1-(4-Aminobenzyl)-N-(3-methylphenyl)-1H-imidazole-4-carboxamide1351809-65-8C18H18N4O
- 6-Benzyl-3-[(4-ethylphenyl)amino]-1,2,4-triazin-5(4H)-one534597-67-6C18H18N4O
- 6-Benzyl-3-((3,5-dimethylphenyl)amino)-1,2,4-triazin-5(4H)-one534597-90-5C18H18N4O
- 6-Benzyl-3-(phenethylamino)-1,2,4-triazin-5(4H)-one881435-97-8C18H18N4O
- 3-(4,5-Diphenyl-1H-imidazol-1-yl)propanehydrazide315248-19-2C18H18N4O
- 1-(3,4-Dimethylphenyl)-5-methyl-N-phenyl-1H-1,2,3-triazole-4-carboxamide866847-90-7C18H18N4O
- N'-[7-Cyano-5-(phenylcarbonyl)-2,3-dihydro-1H-pyrrolizin-6-yl]-N,N-dimethylimidoformamide139157-05-4C18H18N4O
- N-(3,4-Dimethylphenyl)-4-(5-methyl-1H-1,2,3-triazol-1-yl)benzamide915924-64-0C18H18N4O
- 5-Isopropyl-N,1-diphenyl-1H-1,2,3-triazole-4-carboxamide954811-94-0C18H18N4O
- 4-Amino-7,7-dimethyl-1-phenyl-1,6,7,8-tetrahydro-5H-pyrazolo[3,4-b]quinolin-5-one2089391-71-7C18H18N4O
- 1-(3-Phenylhexahydropyrrolo[2,1-b][1,3]oxazol-5-yl)-1H-1,2,3-benzotriazole477766-77-1C18H18N4O
- 2-Ethyl-6-(4-methylphenyl)-6,7-dihydro[1,2,4]triazolo[5,1-b]quinazolin-8(5H)-one945310-90-7C18H18N4O
- 6-(1H-Pyrazol-1-yl)-N-(1-(p-tolyl)ethyl)nicotinamide1251684-46-4C18H18N4O
- 6-(2-(1-Methyl-4-phenyl-1H-imidazol-2-yl)ethyl)picolinamide1351512-79-2C18H18N4O
- N-(6-(1H-Imidazol-1-yl)pyridin-3-yl)-2-phenylbutanamide1421491-36-2C18H18N4O
- 2-Methyl-N-{2-[2-(pyridin-3-yl)-1H-imidazol-1-yl]ethyl}benzamide2034507-05-4C18H18N4O
- (Z)-2-Cyano-3-(2-piperidin-1-ylquinolin-3-yl)prop-2-enamide681854-68-2C18H18N4O
- 4H-(1,2,4)Triazolo(4,3-a)(1,5)benzodiazepine, 5,6-dihydro-1-(2-methoxyphenyl)-4-methyl-54028-92-1C18H18N4O
- 3-(1H-Benzimidazol-1-yl)-N'-[(1Z)-1-phenylethylidene]propanehydrazide4833-57-2C18H18N4O
- N-(2-Ethylphenyl)-5-methyl-1-phenyltriazole-4-carboxamide915916-71-1C18H18N4O
- 6-Quinolineacetamide, N-(1-cyclobutyl-1H-imidazol-4-yl)-395074-48-3C18H18N4O
- 3-(1-Adamantyl)-1-cyano-1-(dicyanomethyl)-3-oxopropyl cyanide373387-37-2C18H18N4O
- N-(2,5-Dimethylphenyl)-4-(5-methyl-1H-1,2,3-triazol-1-yl)benzamide915910-85-9C18H18N4O
- N-(2,6-Dimethylphenyl)-5-methyl-1-phenyl-1H-1,2,3-triazole-4-carboxamide924841-12-3C18H18N4O
- N,1-diphenyl-5-propyl-1H-1,2,3-triazole-4-carboxamide950236-36-9C18H18N4O
- 2-(2-(Pyridin-2-yl)-1H-benzo[d]imidazol-1-yl)-1-(pyrrolidin-1-yl)ethanone1170868-75-3C18H18N4O
- 6-Benzyl-3-((2,5-dimethylphenyl)amino)-1,2,4-triazin-5(4H)-one898640-18-1C18H18N4O
- N-(4-Ethylphenyl)-5-methyl-1-phenyl-1H-1,2,3-triazole-4-carboxamide866846-57-3C18H18N4O
- N-(3,5-Dimethylphenyl)-5-methyl-1-phenyl-1H-1,2,3-triazole-4-carboxamide866871-75-2C18H18N4O
- 2,8,8-Trimethyl-3-phenyl-8,9-dihydropyrazolo[5,1-c][1,2,4]benzotriazin-6(7H)-one886138-74-5C18H18N4O
- 5-Ethoxy-N-(6-methylpyridin-2-yl)-3,4'-bipyridin-6-amine847901-97-7C18H18N4O
- N,5-dimethyl-1-(4-methylphenyl)-N-phenyl-1H-1,2,3-triazole-4-carboxamide924839-74-7C18H18N4O
- N-(2,6-Dimethylphenyl)-4-(5-methyl-1H-1,2,3-triazol-1-yl)benzamide924828-81-9C18H18N4O
- 6-[4-(Propan-2-yl)phenyl]-6,7-dihydro[1,2,4]triazolo[5,1-b]quinazolin-8(5H)-one941257-99-4C18H18N4O
- N-(4-Ethylphenyl)-4-(5-methyl-1H-1,2,3-triazol-1-yl)benzamide915891-47-3C18H18N4O
- 2,2'-[5-(5-Formylimidazol-1-yl)-1,3-phenylene]di(2-methylpropiononitrile)120512-62-1C18H18N4O
- 6-(4-Methylphenyl)-2-(pyrrolidin-1-yl)pyrido[4,3-d]pyrimidin-5(6H)-one1030468-55-3C18H18N4O
- N-Cyclopropyl-1,3-dimethyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide1282116-47-5C18H18N4O
- 5-Methyl-N-[(4-methylphenyl)methyl]-1-(pyridin-2-yl)-1H-pyrazole-4-carboxamide1170001-15-6C18H18N4O
- N-(3,4-Dimethylbenzyl)-6-(1H-pyrazol-1-yl)nicotinamide1251552-10-9C18H18N4O
- 4-((1H-Imidazol-1-yl)methyl)-N-(2-(pyridin-4-yl)ethyl)benzamide1235661-24-1C18H18N4O
Frequently asked questions
What is the molar mass of C18H18N4O?
The molar mass of C18H18N4O is 306.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 306.1481 Da.
How many compounds have the formula C18H18N4O?
CompoundList lists 210 compounds with the molecular formula C18H18N4O, including 3-Methyl-1-(oxolan-2-ylmethylamino)pyrido[1,2-a]benzimidazole-4-carbonitrile, 5-[(3-Phenylmethoxyphenyl)methyl]pyrimidine-2,4-diamine, Morpholino-[(3-phenylimidazo[1,5-a]pyridin-1-yl)methylene]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 C18H18N4O?
C18H18N4O 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.