Molecular formula
C21H16N2O4
120 compounds have this formula on CompoundList.
- Molar mass
- 360.37g/mol
- Monoisotopic mass
- 360.1110Da
- Atoms
- 43
- Elements
- 4
- Rings plus double bonds
- 15
The formula C21H16N2O4 describes a molecule made of 21 carbon atoms, 16 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 × 2169.99%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 164.48%1.008 × 16 = 16.128 g/mol
- N Nitrogen × 27.77%14.007 × 2 = 28.014 g/mol
- O Oxygen × 417.76%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C21H16N2O4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 120 compounds
1,4-Naphthoquinon-2-yl-L-tryptophan
CAS 185351-19-3C21H16N2O4
![2-[(2-Benzamidobenzoyl)amino]benzoic acid chemical structure, C21H16N2O4, CAS 10129-16-5](/s/QNNOKAUNPFYKNS-UHFFFAOYSA-N.svg)
2-[(2-Benzamidobenzoyl)amino]benzoic acid
CAS 10129-16-5C21H16N2O4
![2-(2-Cyanophenoxy)-N-[2-[cyclopropyl(oxo)methyl]-3-benzofuranyl]acetamide chemical structure, C21H16N2O4, CAS 799263-69-7](/s/FJJRKQUVBYDXEB-UHFFFAOYSA-N.svg)
2-(2-Cyanophenoxy)-N-[2-[cyclopropyl(oxo)methyl]-3-benzofuranyl]acetamide
CAS 799263-69-7C21H16N2O4
N-(3-Benzamidophenyl)-1,3-benzodioxole-5-carboxamide
CAS 706777-51-7C21H16N2O4
2-(((2-((Phenylamino)carbonyl)phenyl)amino)carbonyl)benzoic acid
CAS 306324-94-7C21H16N2O4
![Ethyl 4-[2-(furan-2-yl)-4-oxoquinazolin-3-yl]benzoate chemical structure, C21H16N2O4, CAS 342596-38-7](/s/PGAWODUZPYYODA-UHFFFAOYSA-N.svg)
Ethyl 4-[2-(furan-2-yl)-4-oxoquinazolin-3-yl]benzoate
CAS 342596-38-7C21H16N2O4
1-Benzyl-4-(2-furylcarbonyl)-3-hydroxy-5-(4-pyridyl)-1,5-dihydro-2H-pyrrol-2-one
CAS 608109-20-2C21H16N2O4
3-(3-Nitrophenyl)-N-(4-phenoxyphenyl)acrylamide
CAS 331462-24-9C21H16N2O4
4-(3-Nitro-benzylidene)-1,2,3,4-tetrahydro-acridine-9-carboxylic acid
CAS 379255-82-0C21H16N2O4
![N-(1,3-Benzodioxol-5-ylmethyl)-2-(2-oxobenzo[cd]indol-1(2H)-yl)acetamide chemical structure, C21H16N2O4, CAS 708222-31-5](/s/VIOFFMUTCIKSLZ-UHFFFAOYSA-N.svg)
N-(1,3-Benzodioxol-5-ylmethyl)-2-(2-oxobenzo[cd]indol-1(2H)-yl)acetamide
CAS 708222-31-5C21H16N2O4
5-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)pyridine-2-carboxylic acid
CAS 1519937-82-6C21H16N2O4
![3-Methoxy-N-(4-methyl-5-oxo-5H-chromeno[4,3-b]pyridin-2-yl)benzamide chemical structure, C21H16N2O4, CAS 851411-33-1](/s/KMCGRTQTVDRBPK-UHFFFAOYSA-N.svg)
3-Methoxy-N-(4-methyl-5-oxo-5H-chromeno[4,3-b]pyridin-2-yl)benzamide
CAS 851411-33-1C21H16N2O4
N-(3-Acetyl-1,2-dihydroxyindol-6-yl)naphthalene-2-carboxamide
CAS 512180-65-3C21H16N2O4
2-Methyl-4-oxo-3-(1-phenyl-1H-pyrazol-4-yl)-4H-chromen-7-yl acetate
CAS 51411-95-1C21H16N2O4
4-(2-(4-Hydroxybenzoyl)carbohydrazonoyl)phenyl benzoate
CAS 303082-89-5C21H16N2O4
Dimethyl 6-phenylpyrrolo(2,1-A)phthalazine-1,2-dicarboxylate
CAS 853317-73-4C21H16N2O4
![N-[3-(1,3-Benzoxazol-2-yl)-4-hydroxyphenyl]-3-methoxybenzamide chemical structure, C21H16N2O4, CAS 327051-16-1](/s/BEGUDHOQPFZNGL-UHFFFAOYSA-N.svg)
N-[3-(1,3-Benzoxazol-2-yl)-4-hydroxyphenyl]-3-methoxybenzamide
CAS 327051-16-1C21H16N2O4
![N-[4-(1,3-Benzoxazol-2-yl)-3-hydroxyphenyl]-4-methoxybenzamide chemical structure, C21H16N2O4, CAS 327051-45-6](/s/IEWXCMVBIYIVMB-UHFFFAOYSA-N.svg)
N-[4-(1,3-Benzoxazol-2-yl)-3-hydroxyphenyl]-4-methoxybenzamide
CAS 327051-45-6C21H16N2O4
![3-(Furan-2-yl)-2,5-diphenyl-hexahydro-2H-pyrrolo[3,4-d][1,2]oxazole-4,6-dione chemical structure, C21H16N2O4, CAS 320342-90-3](/s/NRGSUXPIXSRJFZ-UHFFFAOYSA-N.svg)
3-(Furan-2-yl)-2,5-diphenyl-hexahydro-2H-pyrrolo[3,4-d][1,2]oxazole-4,6-dione
CAS 320342-90-3C21H16N2O4
2-(1,3-Dioxoisoindol-2-yl)-N-(4-methoxynaphthalen-1-yl)acetamide
CAS 307525-85-5C21H16N2O4
![3,4-Bis[(phenylcarbonyl)amino]benzoic acid chemical structure, C21H16N2O4, CAS 500262-11-3](/s/KMZVJJIMLWQDKR-UHFFFAOYSA-N.svg)
3,4-Bis[(phenylcarbonyl)amino]benzoic acid
CAS 500262-11-3C21H16N2O4
4-(Furan-2-carbonyl)-3-hydroxy-5-(4-methylphenyl)-1-(pyridin-2-yl)-2,5-dihydro-1H-pyrrol-2-one
CAS 380202-27-7C21H16N2O4
N-((9H-Fluoren-9-yl)carbamoyl)-2,6-dihydroxybenzamide
CAS 1186371-31-2C21H16N2O4
1-(4-Oxo-4H-chromen-3-yl)-2,3,4,9-tetrahydro-1H-beta-carboline-3-carboxylic acid
CAS 1023949-54-3C21H16N2O4
- 2-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)-N-(2-methoxyphenyl)acetamide294668-74-9C21H16N2O4
- 2-{[2-([1,1'-Biphenyl]-4-ylcarbonyl)hydrazino]carbonyl}benzoic acid314289-90-2C21H16N2O4
- 4-Oxo-N-((5-(p-tolyl)isoxazol-3-yl)methyl)-4H-chromene-2-carboxamide946262-87-9C21H16N2O4
- (5-Phenylisoxazol-3-yl)methyl 2-(2-methyl-1H-indol-3-yl)-2-oxoacetate946342-66-1C21H16N2O4
- 3,4-Bis{[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino}benzoic acid87578-89-0C21H16N2O4
- 1H-Indene-5-carboxamide, 2,3-dihydro-2-(3-hydroxy-2(1H)-quinolinylidene)-N,N-dimethyl-1,3-dioxo-43099-94-1C21H16N2O4
- 4-(Furan-2-carbonyl)-3-hydroxy-5-phenyl-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one378763-90-7C21H16N2O4
- 3-Methoxy-N-(2-methyl-1,3-dioxoisoindolin-5-yl)-2-naphthamide307327-03-3C21H16N2O4
- 2-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)-N-(4-methoxyphenyl)acetamide296266-35-8C21H16N2O4
- N-[3-(1,3-Benzoxazol-2-yl)-4-hydroxyphenyl]-2-methoxybenzamide2568-66-3C21H16N2O4
- N-[3-(1,3-Benzoxazol-2-yl)-4-hydroxyphenyl]-2-phenoxyacetamide424796-97-4C21H16N2O4
- 2-Amino-4-(2-ethoxyphenyl)-5-oxo-4H-pyrano[3,2-c]chromene-3-carbonitrile331985-99-0C21H16N2O4
- (5-(Benzo[d][1,3]dioxol-5-yl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)(furan-2-yl)methanone927536-61-6C21H16N2O4
- N-(3-Benzoylphenyl)-4-methyl-3-nitrobenzamide312500-90-6C21H16N2O4
- 3-Acetyl-4-{4-nitrophenyl}-2-methyl-1,4-dihydro-5H-indeno[1,2-b]pyridin-5-one35929-94-3C21H16N2O4
- 3-(Dibenzofuran-3-ylamino)-1-(4-nitrophenyl)propan-1-one364625-88-7C21H16N2O4
- N-(4-Methyl-5-oxochromeno[4,3-b]pyridin-2-yl)-2-phenoxyacetamide851411-02-4C21H16N2O4
- (Z)-2-(Furan-2-ylmethylene)-8-(pyridin-3-ylmethyl)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one929963-11-1C21H16N2O4
- (Z)-2-(Furan-2-ylmethylene)-8-(pyridin-4-ylmethyl)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one929870-55-3C21H16N2O4
- 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)isonicotinic acid1234878-64-8C21H16N2O4
- Ethyl 3-[(Z)-(5-oxo-2-phenyl-1,3-oxazol-4(5H)-ylidene)methyl]-1H-indole-2-carboxylate296264-84-1C21H16N2O4
- 2-(4-Methyl-2-oxochromen-7-yl)oxy-N-quinolin-8-ylacetamide461032-76-8C21H16N2O4
- 3-[(3-Methoxynaphthalene-2-carbonyl)amino]-1-benzofuran-2-carboxamide477511-47-0C21H16N2O4
- (4-Methylphenyl)(2-nitro-10,11-dihydrodibenzo[b,f][1,4]oxazepin-9-yl)methanone866157-24-6C21H16N2O4
- 4-Hydroxy-N-(7-methyl-11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzenecarboxamide866152-19-4C21H16N2O4
- 4-Benzoyl-3-hydroxy-1-(5-methylisoxazol-3-yl)-5-phenyl-1H-pyrrol-2(5H)-one618873-38-4C21H16N2O4
- (Z)-8-(Furan-2-ylmethyl)-2-(pyridin-3-ylmethylene)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one951930-74-8C21H16N2O4
- (Z)-8-(Furan-2-ylmethyl)-2-(pyridin-4-ylmethylene)-8,9-dihydro-2H-benzofuro[7,6-e][1,3]oxazin-3(7H)-one951937-61-4C21H16N2O4
- 5-([(9H-Fluoren-9-ylmethoxy)carbonyl]amino)pyridine-3-carboxylic acid457100-77-5C21H16N2O4
- 4-Oxido-1-[(4-phenoxyphenyl)methoxy]quinoxalin-4-ium-2-one371236-57-6C21H16N2O4
- 3-Benzamido-N-(1,3-benzodioxol-5-yl)benzamide708241-89-8C21H16N2O4
- N-(4-Methyl-2-nitrophenyl)-9H-xanthene-9-carboxamide221148-86-3C21H16N2O4
- N-(2-Methyl-4-nitrophenyl)-9H-xanthene-9-carboxamide349117-00-6C21H16N2O4
- N-(2-Benzoyl-4-methylphenyl)-2-nitrobenzamide75840-40-3C21H16N2O4
- 2-Methoxy-N-{4-methyl-5-oxo-5H-chromeno[4,3-b]pyridin-2-yl}benzamide851411-30-8C21H16N2O4
- 3-(9H-Fluoren-9-ylmethoxycarbonylamino)-pyridine-2-carboxylic acid1567020-33-0C21H16N2O4
- (E)-3-(Furan-2-yl)-N-[2-(4-methoxyphenyl)-1,3-benzoxazol-5-yl]prop-2-enamide433964-23-9C21H16N2O4
- (E)-N-[5-(1,3-Benzoxazol-2-yl)-2-methoxyphenyl]-3-(furan-2-yl)prop-2-enamide423150-41-8C21H16N2O4
- 2-(1,3-Benzodioxol-5-yl)-5-(furan-2-yl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine883817-33-2C21H16N2O4
- 6-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)pyridine-3-carboxylic acid254737-61-6C21H16N2O4
- Phenyl N-{6-methyl-10-oxo-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3(8),4,6,12,14-hexaen-13-yl}carbamate921891-34-1C21H16N2O4
- 3-(2-Methoxybenzyl)-1,2-benzisoxazol-6-yl isonicotinate1049564-53-5C21H16N2O4
- 6-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)picolinic acid1342022-63-2C21H16N2O4
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)isonicotinic acid1341759-16-7C21H16N2O4
- 4-[(4-Nitrophenyl)methylidene]-1,2,3,4-tetrahydroacridine-9-carboxylic acid379728-19-5C21H16N2O4
- Methyl 5-((3-(naphthalen-2-yl)-6-oxopyridazin-1(6H)-yl)methyl)furan-2-carboxylate922881-60-5C21H16N2O4
- 2-Oxo-N-((5-(p-tolyl)isoxazol-3-yl)methyl)-2H-chromene-3-carboxamide953008-89-4C21H16N2O4
- N-(11-Oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)-2-phenoxyacetamide922082-37-9C21H16N2O4
- N-(3-Acetylphenyl)-2-[5-(1-benzofuran-2-yl)-1,2-oxazol-3-yl]acetamide1105219-08-6C21H16N2O4
- 4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)pyridine-2-carboxylic acid1342049-68-6C21H16N2O4
- 3,4-Bis(benzyloxy)-5-nitrobenzonitrile923288-80-6C21H16N2O4
- 1-[3-(7-Hydroxy-6-methoxy-quinolin-4-yloxy)-quinolin-2-yl]-ethanone666733-57-9C21H16N2O4
- N-(2-Benzoyl-4-nitrophenyl)-4-methylbenzamide313535-38-5C21H16N2O4
- N-(4-Methyl-2-oxochromen-7-yl)-5-(4-methylphenyl)-1,2-oxazole-3-carboxamide679815-45-3C21H16N2O4
- 4-[(4-Nitrophenyl)methylidene]-1,2,3,4-tetrahydroacridine-9-carboxylic acidC21H16N2O4
- 3-(2-(Naphthalen-2-yloxy)acetamido)benzofuran-2-carboxamide898373-62-1C21H16N2O4
- 3,4,5-Trihydroxy-N-[2-(1H-indol-2-yl)-phenyl]-benzamide677297-27-7C21H16N2O4
- 4-Methoxy-N-(11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzamide223261-51-6C21H16N2O4
- 2-((3-(3-Methyl-4-nitrophenoxy)benzyl)oxy)benzonitrile2101218-74-8C21H16N2O4
- Fmoc-2-aminonicotinic acid1396968-42-5C21H16N2O4
- 4-[(3,4-Dihydro-3-oxo-2H-1,4-benzoxazin-2-ylidene)methyl]-N-(2-furanylmethyl)benzamide899205-18-6C21H16N2O4
- (9H-Fluoren-9-yl)methyl (4-nitrophenyl)carbamate123622-29-7C21H16N2O4
- 3-Methoxy-N-(11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)benzamide922108-77-8C21H16N2O4
- N-(4-Methoxy-1,2-benzisoxazol-3-yl)-4-phenoxybenzamide1032507-56-4C21H16N2O4
- 1-Methyl-5-[[(5-phenyl-2-furanyl)carbonyl]amino]-1H-indole-2-carboxylic acid863704-07-8C21H16N2O4
- 3-(4-Methoxybenzyl)-6-phenylisoxazolo[5,4-b]pyridine-4-carboxylic acid1263212-37-8C21H16N2O4
- 4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)pyridine-3-carboxylic acid1823482-55-8C21H16N2O4
- 6-Methoxy-2-(4-methoxyphenyl)-4-phenyl-1H-pyrrolo[3,4-c]pyridine-1,3(2H)-dione2640721-66-8C21H16N2O4
- Benzyl cyano(6-phenoxypyridin-2-yl)methyl carbonate88777-55-3C21H16N2O4
- 3-(2-Cyano-3-ethoxy-3-oxoprop-1-en-1-yl)indolizin-2-yl benzoate89645-38-5C21H16N2O4
- 2,5-Bis(phenylcarbamoyl)benzoic acid94454-03-2C21H16N2O4
- 2-Ethoxy-6-nitro-9-phenoxyacridine20304-71-6C21H16N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(2-phenylethyl)-1H-pyrrole-2-carboxylate2248342-40-5C21H16N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-ethyl-5-phenyl-1H-pyrrole-3-carboxylate2248358-29-2C21H16N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-(isoquinolin-4-yl)-2-methylpropanoate2248399-35-9C21H16N2O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-[(1R)-1-phenylethyl]-1H-pyrrole-2-carboxylate2248199-12-2C21H16N2O4
Frequently asked questions
What is the molar mass of C21H16N2O4?
The molar mass of C21H16N2O4 is 360.37 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 360.1110 Da.
How many compounds have the formula C21H16N2O4?
CompoundList lists 120 compounds with the molecular formula C21H16N2O4, including 1,4-Naphthoquinon-2-yl-L-tryptophan, 2-[(2-Benzamidobenzoyl)amino]benzoic acid, 2-(2-Cyanophenoxy)-N-[2-[cyclopropyl(oxo)methyl]-3-benzofuranyl]acetamide. 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 C21H16N2O4?
C21H16N2O4 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.