Molecular formula
C21H18N2O4
165 compounds have this formula on CompoundList.
- Molar mass
- 362.38g/mol
- Monoisotopic mass
- 362.1267Da
- Atoms
- 45
- Elements
- 4
- Rings plus double bonds
- 14
The formula C21H18N2O4 describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms and 4 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 × 2169.60%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 185.01%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 27.73%14.007 × 2 = 28.014 g/mol
- O Oxygen × 417.66%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C21H18N2O4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 165 of 165 compounds
![2-[(4,7-Dimethyl-2-oxo-2H-chromen-5-yl)oxy]-N-(1H-indol-5-yl)acetamide chemical structure, C21H18N2O4, CAS 1144451-27-3](/s/UXNVGFXBKHUPTL-UHFFFAOYSA-N.svg)
2-[(4,7-Dimethyl-2-oxo-2H-chromen-5-yl)oxy]-N-(1H-indol-5-yl)acetamide
CAS 1144451-27-3C21H18N2O4
![2-[(4,7-Dimethyl-2-oxo-2H-chromen-5-yl)oxy]-N-(1H-indol-6-yl)acetamide chemical structure, C21H18N2O4, CAS 1144445-71-5](/s/GAHCVILFVLJBHW-UHFFFAOYSA-N.svg)
2-[(4,7-Dimethyl-2-oxo-2H-chromen-5-yl)oxy]-N-(1H-indol-6-yl)acetamide
CAS 1144445-71-5C21H18N2O4
![3-Amino-5-[4-(phenylmethoxycarbonylamino)phenyl]benzoic acid chemical structure, C21H18N2O4, CAS 1261933-88-3](/s/IUTOGPBVMMNPJR-UHFFFAOYSA-N.svg)
3-Amino-5-[4-(phenylmethoxycarbonylamino)phenyl]benzoic acid
CAS 1261933-88-3C21H18N2O4
![Methyl 4-{[(2-cyclopropyl-1-oxo-1,2-dihydroisoquinolin-4-yl)carbonyl]amino}benzoate chemical structure, C21H18N2O4, CAS 1324085-22-4](/s/GFUHIHZONAUTIM-UHFFFAOYSA-N.svg)
Methyl 4-{[(2-cyclopropyl-1-oxo-1,2-dihydroisoquinolin-4-yl)carbonyl]amino}benzoate
CAS 1324085-22-4C21H18N2O4
![6,7-Dimethoxy-4-[(1-acetyl-5-indolyl)oxy]quinoline chemical structure, C21H18N2O4, CAS 666729-42-6](/s/HYYSIZUQFPYRRU-UHFFFAOYSA-N.svg)
6,7-Dimethoxy-4-[(1-acetyl-5-indolyl)oxy]quinoline
CAS 666729-42-6C21H18N2O4
![N-[4-(2-Methoxyphenoxy)but-2-YN-1-yl]-5-phenyl-1,2-oxazole-3-carboxamide chemical structure, C21H18N2O4, CAS 1421450-37-4](/s/DIEXMOQSADEPEJ-UHFFFAOYSA-N.svg)
N-[4-(2-Methoxyphenoxy)but-2-YN-1-yl]-5-phenyl-1,2-oxazole-3-carboxamide
CAS 1421450-37-4C21H18N2O4
![N-(4-(Benzo[d][1,3]dioxol-5-yloxy)but-2-yn-1-yl)-2-(1H-indol-1-yl)acetamide chemical structure, C21H18N2O4, CAS 1448069-68-8](/s/PIJHSFWCMJYVHF-UHFFFAOYSA-N.svg)
N-(4-(Benzo[d][1,3]dioxol-5-yloxy)but-2-yn-1-yl)-2-(1H-indol-1-yl)acetamide
CAS 1448069-68-8C21H18N2O4
(E)-N-(2-(Furan-2-carbonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)-3-(furan-3-yl)acrylamide
CAS 1448139-10-3C21H18N2O4
![Methyl (2S)-2-[(1-benzofuran-2-yl)formamido]-3-(1H-indol-3-yl)propanoate chemical structure, C21H18N2O4, CAS 1219038-97-7](/s/KCMUINZCPBDOKR-KRWDZBQOSA-N.svg)
Methyl (2S)-2-[(1-benzofuran-2-yl)formamido]-3-(1H-indol-3-yl)propanoate
CAS 1219038-97-7C21H18N2O4
![(3-(Benzo[d][1,3]dioxol-5-yl)pyrrolidin-1-yl)(5-phenylisoxazol-3-yl)methanone chemical structure, C21H18N2O4, CAS 1329366-69-9](/s/SJTGZBDFSHGGJD-UHFFFAOYSA-N.svg)
(3-(Benzo[d][1,3]dioxol-5-yl)pyrrolidin-1-yl)(5-phenylisoxazol-3-yl)methanone
CAS 1329366-69-9C21H18N2O4
![Benzo[d][1,3]dioxol-5-yl(3-(quinolin-2-yloxy)pyrrolidin-1-yl)methanone chemical structure, C21H18N2O4, CAS 1903046-41-2](/s/NDVNXLAGDLHEFL-UHFFFAOYSA-N.svg)
Benzo[d][1,3]dioxol-5-yl(3-(quinolin-2-yloxy)pyrrolidin-1-yl)methanone
CAS 1903046-41-2C21H18N2O4
![4-[7-(Furan-2-yl)-8-oxa-5,6-diazatricyclo[7.4.0.0^{2,6}]trideca-1(9),4,10,12-tetraen-4-yl]-2-methoxyphenol chemical structure, C21H18N2O4, CAS 941941-97-5](/s/AYCGWKQHHQJIDG-UHFFFAOYSA-N.svg)
4-[7-(Furan-2-yl)-8-oxa-5,6-diazatricyclo[7.4.0.0^{2,6}]trideca-1(9),4,10,12-tetraen-4-yl]-2-methoxyphenol
CAS 941941-97-5C21H18N2O4
3-Cyano-1-(9H-fluoren-9-ylmethoxycarbonyl)pyrrolidine-3-carboxylic acid
CAS 2138353-88-3C21H18N2O4
![3-[2-(3-Anilinophenoxy)acetamido]benzoic acid chemical structure, C21H18N2O4, CAS 649774-11-8](/s/VVKDTTAWAMKZET-UHFFFAOYSA-N.svg)
3-[2-(3-Anilinophenoxy)acetamido]benzoic acid
CAS 649774-11-8C21H18N2O4
![3-[2-(4-Anilinophenoxy)acetamido]benzoic acid chemical structure, C21H18N2O4, CAS 649774-10-7](/s/LZFXLHAWCPWCIL-UHFFFAOYSA-N.svg)
3-[2-(4-Anilinophenoxy)acetamido]benzoic acid
CAS 649774-10-7C21H18N2O4
![(Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-((5-(p-tolyl)isoxazol-3-yl)methyl)acrylamide chemical structure, C21H18N2O4, CAS 953008-59-8](/s/PMZWQNDTPCZXDY-UITAMQMPSA-N.svg)
(Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-((5-(p-tolyl)isoxazol-3-yl)methyl)acrylamide
CAS 953008-59-8C21H18N2O4
N-(2-Acetyl-1,2,3,4-tetrahydroisoquinolin-7-yl)-2-oxo-2H-chromene-3-carboxamide
CAS 955635-46-8C21H18N2O4
1-Benzyl-5-oxo-N-(2-oxo-2H-chromen-6-yl)pyrrolidine-3-carboxamide
CAS 954810-00-5C21H18N2O4
N-(1-Ethyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)-2-oxo-2H-chromene-3-carboxamide
CAS 921998-70-1C21H18N2O4
2-(7-Hydroxy-4,8-dimethyl-2-oxo-2H-chromen-3-yl)-N-(1H-indol-6-yl)acetamide
CAS 1144479-37-7C21H18N2O4
2-(7-Hydroxy-4,8-dimethyl-2-oxo-2H-chromen-3-yl)-N-(1H-indol-5-yl)acetamide
CAS 1144453-47-3C21H18N2O4
N-(4-Acetylphenyl)-1-(benzyloxy)-2-oxo-1,2-dihydropyridine-3-carboxamide
CAS 852364-92-2C21H18N2O4
![2-(3,5-Dimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)-N-(3-methylpyridin-2-yl)acetamide chemical structure, C21H18N2O4, CAS 1219543-75-5](/s/KNXYXGBIMBTKBM-UHFFFAOYSA-N.svg)
2-(3,5-Dimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)-N-(3-methylpyridin-2-yl)acetamide
CAS 1219543-75-5C21H18N2O4
Ethyl 2-amino-4,6-diphenyl-3-nitrobenzoate
CAS 1119523-36-2C21H18N2O4
- 3-Methyl-4-(4-(pyridin-2-ylmethoxy)benzamido)benzoic acid1126369-33-2C21H18N2O4
- 4-Methyl-3-(4-(pyridin-2-ylmethoxy)benzamido)benzoic acid1126367-80-3C21H18N2O4
- 1,1'-(Propane-1,3-diyl)bis(5-methyl-1H-indole-2,3-dione)108053-80-1C21H18N2O4
- 4-(9H-Fluoren-9-ylmethoxycarbonylamino)-1-methylpyrrole-3-carboxylic acid2287279-32-5C21H18N2O4
- N-[4-(3,4-Dimethylphenoxy)phenyl]-2-nitrobenzamide692291-11-5C21H18N2O4
- (2-(3-(1,5-Dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)-1-propenyl)phenoxy)acetic acid94158-17-5C21H18N2O4
- Dimethyl 3,3'-methylenedi(1H-indole-4-carboxylate)65923-25-3C21H18N2O4
- N-((5-(Benzofuran-2-yl)isoxazol-3-yl)methyl)-2-phenoxypropanamide1105206-12-9C21H18N2O4
- 4-[2-(5-Isoxazolyl)-4-methylphenoxy]-6,7-dimethoxyquinoline666729-35-7C21H18N2O4
- 3-(3,3-Dimethyl-1-oxo-isochroman-4-yl)-3H-imidazole-4-carboxylic acid phenyl ester952492-83-0C21H18N2O4
- 4-{[2-(1H-Indol-5-yl)-4-oxo-1,4-dihydroquinolin-8-yl]oxy}butanoic acid188585-23-1C21H18N2O4
- Benzyl 3-hydroxy-4-(1H-indol-3-yl)-5-oxo-5,6-dihydropyridine-1(2H)-carboxylate1207634-72-7C21H18N2O4
- (4R)-4-Cyano-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-L-proline223581-86-0C21H18N2O4
- 2-(3-Cyano-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}azetidin-3-yl)acetic acid2580218-19-3C21H18N2O4
- 4-Methyl-N~1~,N~3~-diphenoxybenzene-1,3-dicarboxamide144742-04-1C21H18N2O4
- (7R,11S)-7,11-Diphenyl-2,4-diazaspiro[5.5]undecane-1,3,5,9-tetrone62163-46-6C21H18N2O4
- 3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-methyl-1H-pyrrole-2-carboxylic acid1596849-50-1C21H18N2O4
- 6-Oxo-3-{2-[4-(2-phenoxyethoxy)phenyl]hydrazinylidene}cyclohexa-1,4-diene-1-carbaldehyde97908-10-6C21H18N2O4
- 3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrrole-2-carboxylic acid2387076-35-7C21H18N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-methyl-5-(propan-2-yl)-1H-indole-2-carboxylate2248321-67-5C21H18N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(pyridin-3-yl)spiro[3.3]heptane-2-carboxylate2248399-30-4C21H18N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(pyridin-4-yl)spiro[3.3]heptane-2-carboxylate2248323-80-8C21H18N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-tert-butyl-1H-indole-2-carboxylate2248302-20-5C21H18N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(2-methylpropyl)-1H-indole-3-carboxylate2248341-72-0C21H18N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 6-tert-butyl-1H-indole-2-carboxylate2248312-68-5C21H18N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(2-methylpropyl)-1H-indole-4-carboxylate2248312-94-7C21H18N2O4
- 3-{[(Benzyloxy)carbonyl][(pyridin-2-yl)methyl]amino}benzoic acid2680871-39-8C21H18N2O4
- 2-{Benzyl[(prop-2-en-1-yloxy)carbonyl]amino}quinoline-4-carboxylic acid2680776-32-1C21H18N2O4
- 4-{Benzyl[(benzyloxy)carbonyl]amino}pyridine-2-carboxylic acid2680801-50-5C21H18N2O4
- 2-{[(Benzyloxy)carbonyl]amino}-2-[3-(pyridin-4-yl)phenyl]acetic acid2680553-29-9C21H18N2O4
- Benzyl N-[(4-nitrophenyl)methyl]-N-phenylcarbamate2680862-23-9C21H18N2O4
- 2-{[(Benzyloxy)carbonyl][(pyridin-3-yl)methyl]amino}benzoic acid2680663-62-9C21H18N2O4
- 4-({[(Benzyloxy)carbonyl](pyridin-4-yl)amino}methyl)benzoic acid2680895-72-9C21H18N2O4
- (9H-Fluoren-9-yl)methyl 3-(3-hydroxy-1,2-oxazol-5-yl)azetidine-1-carboxylate2763931-60-6C21H18N2O4
- (9H-Fluoren-9-yl)methyl 3-hydroxy-4H,5H,6H,7H-[1,2]oxazolo[5,4-c]pyridine-6-carboxylate2764015-63-4C21H18N2O4
- (9H-Fluoren-9-yl)methyl N-(6-hydroxy-2-methoxypyridin-3-yl)carbamate2763976-12-9C21H18N2O4
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-methyl-1H-pyrrole-3-carboxylic acid2913409-66-0C21H18N2O4
- 2,2'-(1-Methyl-1,4-butanediyl)bis-1H-isoindole-1,3(2H)-dione81136-00-7C21H18N2O4
- 2-(Furan-2-ylformamido)-3-(4-methoxyphenyl)-N-phenylprop-2-enamide69763-56-0C21H18N2O4
- (1-(Methoxycarbonyl)-1H-indol-3-yl)methyl 3-methyl-1H-indole-1-carboxylate2375194-13-9C21H18N2O4
- 3-(4-(4-Acetylphenyl)-1-oxoisoindolin-2-yl)piperidine-2,6-dione3017140-71-2C21H18N2O4
Frequently asked questions
What is the molar mass of C21H18N2O4?
The molar mass of C21H18N2O4 is 362.38 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 362.1267 Da.
How many compounds have the formula C21H18N2O4?
CompoundList lists 165 compounds with the molecular formula C21H18N2O4, including 2-[(4,7-Dimethyl-2-oxo-2H-chromen-5-yl)oxy]-N-(1H-indol-5-yl)acetamide, 2-[(4,7-Dimethyl-2-oxo-2H-chromen-5-yl)oxy]-N-(1H-indol-6-yl)acetamide, 3-Amino-5-[4-(phenylmethoxycarbonylamino)phenyl]benzoic acid. 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 C21H18N2O4?
C21H18N2O4 has a degree of unsaturation of 14. 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.