Molecular formula
C21H16N2O5
81 compounds have this formula on CompoundList.
- Molar mass
- 376.37g/mol
- Monoisotopic mass
- 376.1059Da
- Atoms
- 44
- Elements
- 4
- Rings plus double bonds
- 15
The formula C21H16N2O5 describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 5 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 × 2167.02%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 164.29%1.008 × 16 = 16.128 g/mol
- N Nitrogen × 27.44%14.007 × 2 = 28.014 g/mol
- O Oxygen × 521.25%15.999 × 5 = 79.995 g/mol
Look up another formula
Compounds with the formula C21H16N2O5
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 81 of 81 compounds
![N-[5-(Furan-2-carbonylamino)-2-methoxyphenyl]-1-benzofuran-2-carboxamide chemical structure, C21H16N2O5, CAS 797776-70-6](/s/RRKYWGLANDBWCT-UHFFFAOYSA-N.svg)
N-[5-(Furan-2-carbonylamino)-2-methoxyphenyl]-1-benzofuran-2-carboxamide
CAS 797776-70-6C21H16N2O5
9,10-Anthracenedione, 4,8-diamino-1,5-dihydroxy-2-(4-methoxyphenyl)-
CAS 4702-64-1C21H16N2O5
1,5-Diamino-4,8-dihydroxy(4-methoxyphenyl)anthraquinone
CAS 31288-44-5C21H16N2O5
![N-[4-(2-Furoylamino)-3-methoxyphenyl]-1-benzofuran-2-carboxamide chemical structure, C21H16N2O5, CAS 6103-21-5](/s/PDMRBSNNLYFDHY-UHFFFAOYSA-N.svg)
N-[4-(2-Furoylamino)-3-methoxyphenyl]-1-benzofuran-2-carboxamide
CAS 6103-21-5C21H16N2O5
2-(Furan-2-ylmethyl)-N-(2-hydroxy-5-methylphenyl)-1,3-dioxoisoindole-5-carboxamide
CAS 712333-78-3C21H16N2O5
![N-(2-Furylmethyl)-2-[(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)carbonyl]benzenecarboxamide chemical structure, C21H16N2O5, CAS 439107-34-3](/s/HDXSARWNNICIIC-UHFFFAOYSA-N.svg)
N-(2-Furylmethyl)-2-[(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)carbonyl]benzenecarboxamide
CAS 439107-34-3C21H16N2O5
1H-Pyrano(3',4':6,7)indolizino(1,2-b)quinoline-11-carboxaldehyde, 4-ethyl-3,4,12,14-tetrahydro-4-hydroxy-3,14-dioxo-, (S)-
CAS 80758-83-4C21H16N2O5
![2-{4-[(4-Methylbenzoyl)oxy]phenyl}-2-oxoethyl 2-pyrazinecarboxylate chemical structure, C21H16N2O5, CAS 667431-71-2](/s/SAIRADIDXCRAPK-UHFFFAOYSA-N.svg)
2-{4-[(4-Methylbenzoyl)oxy]phenyl}-2-oxoethyl 2-pyrazinecarboxylate
CAS 667431-71-2C21H16N2O5
(E)-Methyl 2-(5-(2-cyano-3-((furan-2-ylmethyl)amino)-3-oxoprop-1-en-1-yl)furan-2-yl)benzoate
CAS 847178-41-0C21H16N2O5
4-(2-(2,4-Dihydroxybenzoyl)carbohydrazonoyl)phenyl benzoate
CAS 881660-44-2C21H16N2O5
N-(2-Methoxydibenzofuran-3-yl)-2-(4-nitrophenyl)acetamide
CAS 351442-19-8C21H16N2O5
N-(2-Methoxydibenzofuran-3-yl)-3-methyl-4-nitrobenzamide
CAS 432010-31-6C21H16N2O5
![N-(1-(Furan-2-carbonyl)indolin-6-yl)benzo[d][1,3]dioxole-5-carboxamide chemical structure, C21H16N2O5, CAS 1058257-37-6](/s/QRCHIVVARZYBTK-UHFFFAOYSA-N.svg)
N-(1-(Furan-2-carbonyl)indolin-6-yl)benzo[d][1,3]dioxole-5-carboxamide
CAS 1058257-37-6C21H16N2O5
1H-Pyrano(3',4':6,7)indolizino(1,2-b)quinoline-8-carboxaldehyde, 4-ethyl-3,4,12,14-tetrahydro-4-hydroxy-3,14-dioxo-
CAS 109466-93-5C21H16N2O5
![2-Amino-4-(3,4-dimethoxyphenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile chemical structure, C21H16N2O5, CAS 371925-36-9](/s/ZURZUEVTMFHGFH-UHFFFAOYSA-N.svg)
2-Amino-4-(3,4-dimethoxyphenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile
CAS 371925-36-9C21H16N2O5
![N-{4-[(2E)-3-[5-(2-Nitrophenyl)furan-2-yl]prop-2-enoyl]phenyl}acetamide chemical structure, C21H16N2O5, CAS 627072-77-9](/s/GTXCKZKZCOMETL-ZRDIBKRKSA-N.svg)
N-{4-[(2E)-3-[5-(2-Nitrophenyl)furan-2-yl]prop-2-enoyl]phenyl}acetamide
CAS 627072-77-9C21H16N2O5
![2-Amino-4-(2,4-dimethoxyphenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile chemical structure, C21H16N2O5, CAS 375361-52-7](/s/VFWVVDXSKRKHLB-UHFFFAOYSA-N.svg)
2-Amino-4-(2,4-dimethoxyphenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile
CAS 375361-52-7C21H16N2O5
![2-(5-(Benzofuran-2-yl)isoxazol-3-yl)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)acetamide chemical structure, C21H16N2O5, CAS 1105219-22-4](/s/DTTAKISIIGXDKI-UHFFFAOYSA-N.svg)
2-(5-(Benzofuran-2-yl)isoxazol-3-yl)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)acetamide
CAS 1105219-22-4C21H16N2O5
![(5-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)isoxazol-3-yl)methyl 1H-indole-3-carboxylate chemical structure, C21H16N2O5, CAS 1203416-35-6](/s/UAIIEPANJRDQTH-UHFFFAOYSA-N.svg)
(5-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)isoxazol-3-yl)methyl 1H-indole-3-carboxylate
CAS 1203416-35-6C21H16N2O5
Parp-1-IN-32
CAS 374069-33-7C21H16N2O5
![N-[5-(Hydroxycarbamoyl)-2-methoxyphenyl]dibenzofuran-4-carboxamide chemical structure, C21H16N2O5, CAS 2824131-20-4](/s/RFROQVRGDKTHLN-UHFFFAOYSA-N.svg)
N-[5-(Hydroxycarbamoyl)-2-methoxyphenyl]dibenzofuran-4-carboxamide
CAS 2824131-20-4C21H16N2O5
1-Amino-4,5-dihydroxy-8-((4-methoxyphenyl)amino)anthraquinone
CAS 55851-03-1C21H16N2O5
![2-Amino-4-(2,3-dimethoxyphenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile chemical structure, C21H16N2O5, CAS 303136-77-8](/s/MKHNPNQSUDSUQW-UHFFFAOYSA-N.svg)
2-Amino-4-(2,3-dimethoxyphenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile
CAS 303136-77-8C21H16N2O5
4-(3-(2-Phenylacetamido)phenyl)pyridine-2,6-dicarboxylic acid
CAS 2131052-56-5C21H16N2O5
- 9,10-Anthracenedione, 4,8-diamino-1,5-dihydroxy-2-(4-hydroxy-3-methylphenyl)-4702-65-2C21H16N2O5
- Methyl 2-methyl-4-(4-nitrophenyl)-5-oxo-4,5-dihydro-1H-indeno[1,2-b]pyridine-3-carboxylate425619-75-6C21H16N2O5
- 9,10-Anthracenedione, 1,5-diamino-4,8-dihydroxy-2-(hydroxymethylphenyl)-68310-48-5C21H16N2O5
- 4-Benzoyl-3-hydroxy-5-(4-hydroxyphenyl)-1-(5-methylisoxazol-3-yl)-1H-pyrrol-2(5H)-one618873-66-8C21H16N2O5
- (6R,12AR)-6-(benzo[d][1,3]dioxol-5-yl)-6,7,12,12a-tetrahydro-1H-[1,4]oxazino[4',3':1,6]pyrido[3,4-b]indole-1,4(3H)-dione479545-76-1C21H16N2O5
- N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-(5-(benzofuran-2-yl)isoxazol-3-yl)acetamide1105218-51-6C21H16N2O5
- 3,3-Di-(phthalimidomethyl)oxetane198572-34-8C21H16N2O5
- N-(2-Methoxy-5-nitrophenyl)-9H-xanthene-9-carboxamide349117-43-7C21H16N2O5
- (5Z)-1-(Furan-2-ylmethyl)-5-[(2-methoxynaphthalen-1-yl)methylidene]-1,3-diazinane-2,4,6-trione345335-72-0C21H16N2O5
- 8Acm9TD3HF135415-69-9C21H16N2O5
- 4-(Furan-2-carbonyl)-3-hydroxy-5-(4-methoxyphenyl)-1-(pyridin-2-yl)-1H-pyrrol-2(5H)-one406200-49-5C21H16N2O5
- 3-[3-(4-Methylphenyl)-1,2,4-oxadiazol-5-yl]-2-oxo-2H-chromen-8-yl propanoate931954-27-7C21H16N2O5
- 3-[3-(4-Methylphenyl)-1,2,4-oxadiazol-5-yl]-2-oxo-2H-chromen-7-yl propanoate931954-31-3C21H16N2O5
- 3-[(3-Methoxyphenoxy)methyl]-1,2-benzisoxazol-6-yl isonicotinate1049504-90-6C21H16N2O5
- N-(4-(2-Carbamoylphenoxy)but-2-yn-1-yl)-2-oxo-2H-chromene-3-carboxamide1421482-47-4C21H16N2O5
- N-(3-Acetylphenyl)-4-(4-nitrophenoxy)benzamide328265-93-6C21H16N2O5
- 2-(4-Nitrophenyl)-2-oxoethyl 2-(phenylamino)benzoate355814-81-2C21H16N2O5
- N-(Benzoyloxy)-N-{[4-(4-methylphenoxy)-3-nitrophenyl]methylene}amine320417-23-0C21H16N2O5
- N-{[5-(3-Methoxyphenyl)-1,2-oxazol-3-yl]methyl}-4-oxo-4H-chromene-2-carboxamide952969-04-9C21H16N2O5
- N-((5-(3-Methoxyphenyl)isoxazol-3-yl)methyl)-2-oxo-2H-chromene-3-carboxamide953208-92-9C21H16N2O5
- N-{[5-(4-Methoxyphenyl)-1,2-oxazol-3-yl]methyl}-2-oxo-2H-chromene-3-carboxamide953210-15-6C21H16N2O5
- 6-(6,7-Dimethoxyquinazolin-4-yloxy)-1-naphthoic acid1017969-37-7C21H16N2O5
- Methyl 4-(2-(5-(benzofuran-2-yl)isoxazol-3-yl)acetamido)benzoate1105219-15-5C21H16N2O5
- 2,2'-(3-Oxopentane-1,5-diyl)diisoindoline-1,3-dione17137-17-6C21H16N2O5
- 3-[(4'-Nitrobiphenyl-4-yl)carbamoyl]phenyl acetate733797-73-4C21H16N2O5
- 4-Benzoyl-N-(2-methoxy-5-nitrophenyl)benzamide325988-09-8C21H16N2O5
- [(Cyanomethyl)(phenyl)carbamoyl]methyl 1,4-dihydroxynaphthalene-2-carboxylate949679-02-1C21H16N2O5
- (5-(4-Methoxyphenyl)isoxazol-3-yl)methyl 2-(1H-indol-3-yl)-2-oxoacetate953248-03-8C21H16N2O5
- Benzyl 2-(4-amino-3-nitrobenzoyl)benzoate870604-82-3C21H16N2O5
- 2-((2-Methoxydibenzo[b,d]furan-3-yl)amino)-2-oxoethyl isonicotinate853726-31-5C21H16N2O5
- 7-[(6,7-Dimethoxy-4-quinolinyl)oxy]-4-quinolinecarboxylic acid1017969-46-8C21H16N2O5
- 8-Methoxy-N-(4-methyl-2-oxo-1,2-dihydroquinolin-7-yl)-2-oxo-2H-chromene-3-carboxamide1327573-66-9C21H16N2O5
- (9H-Fluoren-9-yl)methyl N-(4-hydroxy-2-nitrophenyl)carbamate2763919-10-2C21H16N2O5
- 6-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-hydroxypyridine-3-carboxylic acid2243512-05-0C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-(4-methyl-5-phenyl-1,3-oxazol-2-yl)propanoate2248320-51-4C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-propoxyquinoline-3-carboxylate2248344-44-5C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-benzoyl-2-azabicyclo[2.1.1]hexane-1-carboxylate2248322-24-7C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2-acetyl-1,2-dihydroisoquinolin-1-yl)acetate2248412-84-0C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(methoxymethyl)-4-methylquinoline-3-carboxylate2248285-29-0C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(2,3-dihydro-1H-isoindole-2-carbonyl)cyclopropane-1-carboxylate2248385-78-4C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-propoxyisoquinoline-3-carboxylate2248379-69-1C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-phenyl-5-(propan-2-yl)-1,3-oxazole-4-carboxylate2248333-68-6C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-[5-(4-methylphenyl)-1,3-oxazol-2-yl]propanoate2248334-57-6C21H16N2O5
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-hydroxypyridine-3-carboxylic acid2243510-56-5C21H16N2O5
- 6-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-5-hydroxypyridine-2-carboxylic acid2243503-69-5C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(5-phenyl-1,3-oxazol-2-yl)butanoate2248413-14-9C21H16N2O5
- 4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-6-hydroxypyridine-2-carboxylic acid2580237-19-8C21H16N2O5
- 6-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-4-hydroxypyridine-2-carboxylic acid2580205-70-3C21H16N2O5
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-4-hydroxypyridine-3-carboxylic acid2384547-58-2C21H16N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-phenyl-5-(propan-2-yl)-1,2-oxazole-4-carboxylate2248371-64-2C21H16N2O5
- Benzyl N-(2-benzoyl-4-nitrophenyl)carbamate2680834-17-5C21H16N2O5
- (9H-Fluoren-9-yl)methyl N-(2-hydroxy-4-nitrophenyl)carbamate2273300-92-6C21H16N2O5
- (9H-Fluoren-9-yl)methyl N-(2-hydroxy-5-nitrophenyl)carbamate2273695-08-0C21H16N2O5
- (9H-Fluoren-9-yl)methyl N-(5-hydroxy-2-nitrophenyl)carbamate2152923-99-2C21H16N2O5
- (9H-Fluoren-9-yl)methyl N-(4-hydroxy-3-nitrophenyl)carbamate2764020-55-3C21H16N2O5
- (9H-Fluoren-9-yl)methyl N-(2-hydroxy-6-nitrophenyl)carbamate2148266-69-5C21H16N2O5
- (9H-Fluoren-9-yl)methyl N-(2-hydroxy-3-nitrophenyl)carbamate2764012-78-2C21H16N2O5
Frequently asked questions
What is the molar mass of C21H16N2O5?
The molar mass of C21H16N2O5 is 376.37 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 5 oxygen atoms. The monoisotopic mass is 376.1059 Da.
How many compounds have the formula C21H16N2O5?
CompoundList lists 81 compounds with the molecular formula C21H16N2O5, including N-[5-(Furan-2-carbonylamino)-2-methoxyphenyl]-1-benzofuran-2-carboxamide, 9,10-Anthracenedione, 4,8-diamino-1,5-dihydroxy-2-(4-methoxyphenyl)-, 1,5-Diamino-4,8-dihydroxy(4-methoxyphenyl)anthraquinone. 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 C21H16N2O5?
C21H16N2O5 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.