Molecular formula
C21H18N4O2
201 compounds have this formula on CompoundList.
- Molar mass
- 358.40g/mol
- Monoisotopic mass
- 358.1430Da
- Atoms
- 45
- Elements
- 4
- Rings plus double bonds
- 15
The formula C21H18N4O2 describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms and 2 oxygen atoms. 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 × 2170.38%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 185.06%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 415.63%14.007 × 4 = 56.028 g/mol
- O Oxygen × 28.93%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H18N4O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 201 compounds
Manogepix
CAS 936339-60-5C21H18N4O2
![2,4-Dihydro-4-[(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-5-methyl-2-phenyl-3H-pyrazol-3-one chemical structure, C21H18N4O2, CAS 4174-09-8](/s/DFSHSSAUZJFPSK-UYRXBGFRSA-N.svg)
2,4-Dihydro-4-[(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-5-methyl-2-phenyl-3H-pyrazol-3-one
CAS 4174-09-8C21H18N4O2
![4-[(1,5-Dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)methyl]-1,2-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one chemical structure, C21H18N4O2, CAS 15900-11-5](/s/DFSHSSAUZJFPSK-UHFFFAOYSA-N.svg)
4-[(1,5-Dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)methyl]-1,2-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one
CAS 15900-11-5C21H18N4O2
![4-[(5-Hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one chemical structure, C21H18N4O2, CAS 61466-03-3](/s/DFSHSSAUZJFPSK-CPNJWEJPSA-N.svg)
4-[(5-Hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
CAS 61466-03-3C21H18N4O2
Fumiquinazoline F
CAS 169626-35-1C21H18N4O2
C.I. Solvent Yellow 93
CAS 61969-52-6C21H18N4O2
N'-((2-HO-1-Naphthyl)methylene)-2-(2-methyl-1H-benzimidazol-1-yl)acetohydrazide
CAS 303094-92-0C21H18N4O2
![6-Amino-1,4-dihydro-4-(4-methoxyphenyl)-3-methyl-1-phenylpyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C21H18N4O2, CAS 53316-60-2](/s/VDANGQOCOBTKTG-UHFFFAOYSA-N.svg)
6-Amino-1,4-dihydro-4-(4-methoxyphenyl)-3-methyl-1-phenylpyrano[2,3-c]pyrazole-5-carbonitrile
CAS 53316-60-2C21H18N4O2
![6-Amino-4-(2-ethoxyphenyl)-3-phenyl-4,7-dihydroisoxazolo[5,4-b]pyridine-5-carbonitrile chemical structure, C21H18N4O2, CAS 1164472-79-0](/s/XYTDLUGDHRJOKJ-UHFFFAOYSA-N.svg)
6-Amino-4-(2-ethoxyphenyl)-3-phenyl-4,7-dihydroisoxazolo[5,4-b]pyridine-5-carbonitrile
CAS 1164472-79-0C21H18N4O2
![Ethyl 3-methyl-6-phenyl-1-pyridin-2-ylpyrazolo[3,4-b]pyridine-4-carboxylate chemical structure, C21H18N4O2, CAS 735301-46-9](/s/HMCNYMDKAHMRIU-UHFFFAOYSA-N.svg)
Ethyl 3-methyl-6-phenyl-1-pyridin-2-ylpyrazolo[3,4-b]pyridine-4-carboxylate
CAS 735301-46-9C21H18N4O2
Fumiquinazoline G
CAS 169869-87-8C21H18N4O2
![2-Methoxy-6-{4-[(pyridin-3-ylmethyl)amino]quinazolin-2-yl}phenol chemical structure, C21H18N4O2, CAS 799833-68-4](/s/NKSKJXGWVNOSNN-UHFFFAOYSA-N.svg)
2-Methoxy-6-{4-[(pyridin-3-ylmethyl)amino]quinazolin-2-yl}phenol
CAS 799833-68-4C21H18N4O2
![N-(5-Imidazo[1,2-a]pyrimidin-2-yl-2-methylphenyl)-3-methoxybenzamide chemical structure, C21H18N4O2, CAS 847387-79-5](/s/HTERSACCKKYSIZ-UHFFFAOYSA-N.svg)
N-(5-Imidazo[1,2-a]pyrimidin-2-yl-2-methylphenyl)-3-methoxybenzamide
CAS 847387-79-5C21H18N4O2
![2-(1H-Benzo[d][1,2,3]triazol-1-yl)-3-(piperidin-1-yl)naphthalene-1,4-dione chemical structure, C21H18N4O2, CAS 370573-52-7](/s/OCJDGNHRDKLJRX-UHFFFAOYSA-N.svg)
2-(1H-Benzo[d][1,2,3]triazol-1-yl)-3-(piperidin-1-yl)naphthalene-1,4-dione
CAS 370573-52-7C21H18N4O2
![6-Amino-4-(2-ethoxyphenyl)-3-phenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C21H18N4O2, CAS 368434-71-3](/s/UTIPXCPWAXGWCL-UHFFFAOYSA-N.svg)
6-Amino-4-(2-ethoxyphenyl)-3-phenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 368434-71-3C21H18N4O2
N-((2-Methyl-1H-indol-3-yl)(4-nitrophenyl)methyl)pyridin-2-amine
CAS 446270-01-5C21H18N4O2
![N-(5-{Imidazo[1,2-a]pyrimidin-2-yl}-2-methoxyphenyl)-2-phenylacetamide chemical structure, C21H18N4O2, CAS 862810-99-9](/s/NLGLAOPGZQYFLV-UHFFFAOYSA-N.svg)
N-(5-{Imidazo[1,2-a]pyrimidin-2-yl}-2-methoxyphenyl)-2-phenylacetamide
CAS 862810-99-9C21H18N4O2
![N-(3-(Imidazo[1,2-a]pyrimidin-2-yl)phenyl)-2-phenoxypropanamide chemical structure, C21H18N4O2, CAS 863020-33-1](/s/WALLFISGVSBAQH-UHFFFAOYSA-N.svg)
N-(3-(Imidazo[1,2-a]pyrimidin-2-yl)phenyl)-2-phenoxypropanamide
CAS 863020-33-1C21H18N4O2
![N-(4-(6-Methoxyimidazo[1,2-b]pyridazin-2-yl)phenyl)-2-methylbenzamide chemical structure, C21H18N4O2, CAS 953216-11-0](/s/RVCXFLFYMQFIFG-UHFFFAOYSA-N.svg)
N-(4-(6-Methoxyimidazo[1,2-b]pyridazin-2-yl)phenyl)-2-methylbenzamide
CAS 953216-11-0C21H18N4O2
![6-Amino-4-[3-(benzyloxy)phenyl]-3-methyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C21H18N4O2, CAS 315671-05-7](/s/ZKTHCAUSYMRRLA-UHFFFAOYSA-N.svg)
6-Amino-4-[3-(benzyloxy)phenyl]-3-methyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 315671-05-7C21H18N4O2
N-(3-Cyanophenyl)-2-(4-ethyl-6-oxo-2-phenylpyrimidin-1(6H)-yl)acetamide
CAS 1260995-13-8C21H18N4O2
![N-[(2-Methyl-1H-indol-3-yl)(3-nitrophenyl)methyl]pyridin-2-amine chemical structure, C21H18N4O2, CAS 315697-54-2](/s/JYBSPTOJWABJNP-UHFFFAOYSA-N.svg)
N-[(2-Methyl-1H-indol-3-yl)(3-nitrophenyl)methyl]pyridin-2-amine
CAS 315697-54-2C21H18N4O2
N-((2-Methyl-1H-indol-3-yl)(pyridin-2-yl)methyl)-3-nitroaniline
CAS 457650-96-3C21H18N4O2
2-(1H-Indol-3-yl)-N-(4-((6-methylpyridazin-3-yl)oxy)phenyl)acetamide
CAS 1226453-68-4C21H18N4O2
- N-(3-Methoxyphenyl)-2-(2-(pyridin-4-yl)-1H-benzo[d]imidazol-1-yl)acetamide1105235-50-4C21H18N4O2
- N-(3-(Imidazo[1,2-a]pyrimidin-2-yl)phenyl)-2-(4-methoxyphenyl)acetamide862810-03-5C21H18N4O2
- 1-(8-(3-Cyanophenyl)-1,7-naphthyridin-6-yl)piperidine-4-carboxylic acid713145-09-6C21H18N4O2
- N-(3-(6-Methoxyimidazo[1,2-b]pyridazin-2-yl)phenyl)-3-methylbenzamide955780-62-8C21H18N4O2
- 2-Benzyl-N-(1-methyl-1H-pyrazol-4-yl)-1-oxo-1,2-dihydroisoquinoline-4-carboxamide1324063-34-4C21H18N4O2
- 5-(4-Benzoylpiperazin-1-yl)-2-phenyl-1,3-oxazole-4-carbonitrile915907-57-2C21H18N4O2
- 3-(2-(3,4-Dihydroisoquinolin-2(1H)-yl)-2-oxoethyl)-3H-pyrimido[5,4-b]indol-4(5H)-one1105227-70-0C21H18N4O2
- N-(2-Methylphenyl)-2-{2-oxo-3-phenyl-1H,2H,3H-imidazo[4,5-B]pyridin-1-YL}acetamide1359634-44-8C21H18N4O2
- N-Benzyl-2-[2-(3-phenyl-1,2,4-oxadiazol-5-yl)-1H-pyrrol-1-yl]acetamide1775456-92-2C21H18N4O2
- 1-(Indolin-1-yl)-2-(2-(5-methyl-1,3,4-oxadiazol-2-yl)-1H-indol-1-yl)ethanone923165-37-1C21H18N4O2
- 2-{4-[(5-Methyl-5H-pyrrolo[3,2-d]pyrimidin-4-yl)oxy]phenyl}-N-phenylacetamide919280-43-6C21H18N4O2
- 4-Anilino-7-(3,5-dimethyl-1,2-oxazol-4-yl)quinoline-3-carboxamide1373353-95-7C21H18N4O2
- 4-[[2-(1-Piperazinylcarbonyl)-6-quinolinyl]oxy]benzonitrile1802849-54-2C21H18N4O2
- 2-(2-(Quinolin-3-yl)pyridin-4-yl)-6,7-dihydro-1H-pyrrolo[3,2-c]pyridin-4(5H)-one hydrate1186648-22-5C21H18N4O2
- [(3Z)-3-{[4-(3-Methylphenyl)-1H-pyrrol-2-yl]methylidene}-2-oxo-2,3-dihydro-1H-indol-5-yl]urea1056225-36-5C21H18N4O2
- 3-(2-Aminoquinazolin-6-yl)-1-(4-methoxyphenyl)-4-methylpyridin-2(1H)-one1003311-84-9C21H18N4O2
- 3-(2-Aminoquinazolin-6-yl)-1-(3-methoxyphenyl)-4-methylpyridin-2(1H)-one1003311-75-8C21H18N4O2
- 6-Amino-4-[4-(benzyloxy)phenyl]-3-methyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile315671-67-1C21H18N4O2
- N-[6-(4-hydroxy-3,5-dimethylphenyl)[1,2,4]triazolo[1,5-a]pyridin-2-yl]Benzamide2582815-84-5C21H18N4O2
- [4-([1]Benzofuro[3,2-d]pyrimidin-4-yl)piperazin-1-yl]-phenylmethanone392669-14-6C21H18N4O2
- 3-(4-(Naphthalen-1-ylmethoxy)phenyl)-1H-pyrazole-5-carbohydrazide1038997-10-2C21H18N4O2
- N-[2-(4-Methoxyphenyl)-2H-1,2,3-benzotriazol-5-yl]-2-phenylacetamide309292-30-6C21H18N4O2
- N-[2-(4-Methylphenyl)benzotriazol-5-yl]-2-phenoxyacetamide333779-07-0C21H18N4O2
- N-[(2-Methyl-1H-indol-3-yl)(pyridin-2-yl)methyl]-4-nitroaniline457650-57-6C21H18N4O2
- 2-Ethoxy-N-(4-imidazo[1,2-a]pyrimidin-2-ylphenyl)benzamide862811-19-6C21H18N4O2
- 5-Methyl-1-phenyl-N-((5-phenylfuran-2-yl)methyl)-1H-1,2,3-triazole-4-carboxamide1032228-63-9C21H18N4O2
- N-[2-(4-Methoxyphenyl)benzotriazol-5-yl]-2-methylbenzamide332151-81-2C21H18N4O2
- 6-(4-Methylphenyl)-2-{[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}-2,3-dihydropyridazin-3-one1040642-39-4C21H18N4O2
- N-(2-(1H-Imidazol-1-yl)quinolin-8-yl)-2-(m-tolyloxy)acetamide1325692-28-1C21H18N4O2
- 19 suppliers5-Methyl-4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)methylidene]-2-phenylpyrazol-3-one4702-90-3C21H18N4O2
- RefChem:35735387447-35-6C21H18N4O2
- 5,5-Dimethyl-3-(4-nitrophenyl)-3,4,5,10-tetrahydropyrazolo[4,3-a]carbazole376385-71-6C21H18N4O2
- 1-Ethyl-N-(2-phenoxyphenyl)-1H-benzo[d][1,2,3]triazole-5-carboxamide854039-48-8C21H18N4O2
- (Z)-N-(1-(1-Cyano-2-oxo-2-(propylamino)ethylidene)-1H-isoindol-3-yl)benzamide900901-81-7C21H18N4O2
- 1-(4-Methylbenzyl)-3-(pyridin-3-ylmethyl)pyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione941908-41-4C21H18N4O2
- 5-(Furan-2-yl)-1-phenyl-N-(2-phenylethyl)-1H-1,2,3-triazole-4-carboxamide950236-64-3C21H18N4O2
- 4-(3-(1-(2-Methylbenzyl)-5-oxopyrrolidin-3-yl)-1,2,4-oxadiazol-5-yl)benzonitrile1172894-21-1C21H18N4O2
- N-(2-((2-Methylquinolin-5-yl)amino)-2-oxoethyl)-1H-indole-3-carboxamide1251639-83-4C21H18N4O2
- 3-[2-Ethoxy-6-(4-methylphenyl)pyridin-3-yl]-5-pyridin-4-yl-1,2,4-oxadiazole701953-98-2C21H18N4O2
- N-{(E)-[3-methoxy-4-(naphthalen-1-ylmethoxy)phenyl]methylidene}-4H-1,2,4-triazol-4-amine302565-74-8C21H18N4O2
- N-(3-(6-Methoxyimidazo[1,2-b]pyridazin-2-yl)phenyl)-2-phenylacetamide955597-69-0C21H18N4O2
- N-(4-Methylphenyl)-2-(4-oxo-2-phenylpyrazolo[1,5-a]pyrazin-5(4H)-yl)acetamide941893-68-1C21H18N4O2
- N-[1-(4-Methylbenzyl)-1H-pyrazol-5-yl]-5-phenylisoxazole-3-carboxamide942848-71-7C21H18N4O2
- N-(3-(4-Oxoquinazolin-3(4H)-yl)propyl)quinoline-2-carboxamide954320-56-0C21H18N4O2
- 4-Methoxy-N-(4-{7-methylimidazo[1,2-A]pyrimidin-2-YL}phenyl)benzamide923234-31-5C21H18N4O2
- N-(4-(7-Methylimidazo[1,2-a]pyrimidin-2-yl)phenyl)-2-phenoxyacetamide923185-34-6C21H18N4O2
- N-(3-Cyanophenyl)-2-[3-(2,5-dimethylphenyl)-6-oxopyridazin-1(6H)-yl]acetamide891397-28-7C21H18N4O2
- 3-[2-Oxo-2-(1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)ethyl]quinazolin-4(3H)-one1240874-97-8C21H18N4O2
- 3-(3-(1-(2-Methylbenzyl)-5-oxopyrrolidin-3-yl)-1,2,4-oxadiazol-5-yl)benzonitrile1171578-84-9C21H18N4O2
- N-(3-Cyanophenyl)-2-[3-(3,4-dimethylphenyl)-6-oxopyridazin-1(6H)-yl]acetamide891394-13-1C21H18N4O2
- 2-(5-Cyano-6-oxo-2-(p-tolyl)pyrimidin-1(6H)-yl)-N-methyl-N-phenylacetamide1251568-45-2C21H18N4O2
- 2-(4-Methoxyphenyl)-N-[2-(pyridin-3-yl)-1H-benzimidazol-5-yl]acetamide1310938-73-8C21H18N4O2
- 2-(2-Methoxyphenyl)-N-[2-(pyridin-3-yl)-1H-benzimidazol-5-yl]acetamide1310935-33-1C21H18N4O2
- N-(2-((3-Methyl-1,2,4-oxadiazol-5-yl)methyl)phenyl)-4-(1H-pyrrol-1-yl)benzamide1448129-79-0C21H18N4O2
- N-(2-(1H-Imidazo[1,2-b]pyrazol-1-yl)ethyl)-9H-xanthene-9-carboxamide1797823-45-0C21H18N4O2
- 2-(1H-Indol-1-yl)-N-(2-(1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)acetamide2034539-92-7C21H18N4O2
- 3-Methyl-4-oxo-N-phenyl-1-(p-tolyl)-4,7-dihydro-1H-pyrazolo[3,4-b]pyridine-5-carboxamide898457-93-7C21H18N4O2
- Antitumor agent-702454133-88-9C21H18N4O2
- 2-[4-[[4-[Bis(2-hydroxyethyl)amino]phenyl]-cyanomethylidene]cyclohexa-2,5-dien-1-ylidene]propanedinitrile287922-16-1C21H18N4O2
- 4-(Benzotriazol-1-ylmethyl)-N-(2-methoxyphenyl)benzamide692770-15-3C21H18N4O2
- Prop-2-enyl 2-amino-1-(4-methylphenyl)pyrrolo[3,2-b]quinoxaline-3-carboxylate799818-52-3C21H18N4O2
- 6-Amino-3-(4-ethoxyphenyl)-4-phenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile694467-80-6C21H18N4O2
- 1-[[3-(3-Methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]-3-naphthalen-1-ylurea890332-89-5C21H18N4O2
- 4-[(2-Hydroxy-1-naphthyl)diazenyl]-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one51359-15-0C21H18N4O2
- Benzyl N-[1H-1,2,3-benzotriazol-1-yl(phenyl)methyl]carbamate125453-15-8C21H18N4O2
- (5E)-5-[(2,5-Dimethyl-1-pyridin-4-ylpyrrol-3-yl)methylidene]-3-phenylimidazolidine-2,4-dione638991-54-5C21H18N4O2
- N-(5-{Imidazo[1,2-a]pyrimidin-2-yl}-2-methylphenyl)-4-methoxybenzamide847387-80-8C21H18N4O2
- N-(5-Imidazo[1,2-a]pyrimidin-2-yl-2-methylphenyl)-2-phenoxyacetamide862810-40-0C21H18N4O2
- N-(5-Imidazo[1,2-a]pyrimidin-2-yl-2-methoxyphenyl)-2-methylbenzamide847387-99-9C21H18N4O2
- N-(5-Imidazo[1,2-a]pyrimidin-2-yl-2-methoxyphenyl)-3-methylbenzamide847388-00-5C21H18N4O2
- 1-(1H-Benzimidazol-2-yl)-6-(2-hydroxyphenyl)-3-methyl-1,5,6,7-tetrahydro-4H-indazol-4-one925643-95-4C21H18N4O2
- 1-(3-Methylbenzyl)-3-(pyridin-2-ylmethyl)pyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione941901-61-7C21H18N4O2
- 1-(4-Methylbenzyl)-3-(pyridin-2-ylmethyl)pyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione941907-94-4C21H18N4O2
- 1-(2-Methylbenzyl)-3-(pyridin-3-ylmethyl)pyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione941902-06-3C21H18N4O2
- 1-(3-Methylbenzyl)-3-(pyridin-3-ylmethyl)pyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione941953-17-9C21H18N4O2
- 1-(2-Methylbenzyl)-3-(pyridin-4-ylmethyl)pyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione941953-74-8C21H18N4O2
Frequently asked questions
What is the molar mass of C21H18N4O2?
The molar mass of C21H18N4O2 is 358.40 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 4 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 358.1430 Da.
How many compounds have the formula C21H18N4O2?
CompoundList lists 201 compounds with the molecular formula C21H18N4O2, including Manogepix, 2,4-Dihydro-4-[(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-5-methyl-2-phenyl-3H-pyrazol-3-one, 4-[(1,5-Dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)methyl]-1,2-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one. 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 C21H18N4O2?
C21H18N4O2 has a degree of unsaturation of 15. 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.