Molecular formula
C21H17NO3
144 compounds have this formula on CompoundList.
- Molar mass
- 331.37g/mol
- Monoisotopic mass
- 331.1208Da
- Atoms
- 42
- Elements
- 4
- Rings plus double bonds
- 14
The formula C21H17NO3 describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom and 3 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 × 2176.12%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 175.17%1.008 × 17 = 17.136 g/mol
- N Nitrogen × 14.23%14.007 × 1 = 14.007 g/mol
- O Oxygen × 314.48%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C21H17NO3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 144 compounds
Bibr 1532
CAS 321674-73-1C21H17NO3
3,3-Bis(4-hydroxyphenyl)-7-methyl-1,3-dihydro-2H-indol-2-one
CAS 56632-39-4C21H17NO3
3-(4-Methoxyanilino)-3-phenyl-2-benzofuran-1-one
CAS 37020-02-3C21H17NO3
![2-[[3-(2-Naphthalenyl)-1-oxobut-2-enyl]amino]benzoic acid chemical structure, C21H17NO3, CAS 2197129-84-1](/s/PGFQXGLPJUCTOI-UHFFFAOYSA-N.svg)
2-[[3-(2-Naphthalenyl)-1-oxobut-2-enyl]amino]benzoic acid
CAS 2197129-84-1C21H17NO3
2-Oxo-2-phenylethyl 2-anilinobenzoate
CAS 223752-73-6C21H17NO3
![2-[1-(Furan-2-ylmethyl)-2,6-dimethylpyridin-4-ylidene]indene-1,3-dione chemical structure, C21H17NO3, CAS 503432-63-1](/s/MHXSZWHQYPAFRO-UHFFFAOYSA-N.svg)
2-[1-(Furan-2-ylmethyl)-2,6-dimethylpyridin-4-ylidene]indene-1,3-dione
CAS 503432-63-1C21H17NO3
2-(4-Oxo-2-phenyl-4,5,6,7-tetrahydro-1H-indol-1-yl)benzoic acid
CAS 315240-36-9C21H17NO3
![2'-(p-Tolylcarbamoyl)-[1,1'-biphenyl]-2-carboxylic acid chemical structure, C21H17NO3, CAS 24013-64-7](/s/MFPNPSMSLMMAGU-UHFFFAOYSA-N.svg)
2'-(p-Tolylcarbamoyl)-[1,1'-biphenyl]-2-carboxylic acid
CAS 24013-64-7C21H17NO3
![2-(4-Methylphenyl)-3a,4,9,9a-tetrahydro-1H-4,9-ethanobenzo[f]isoindole-1,3,10(2H)-trione chemical structure, C21H17NO3, CAS 464155-78-0](/s/OUBIXGHIIWWTCH-UHFFFAOYSA-N.svg)
2-(4-Methylphenyl)-3a,4,9,9a-tetrahydro-1H-4,9-ethanobenzo[f]isoindole-1,3,10(2H)-trione
CAS 464155-78-0C21H17NO3
![11-(2-Methylphenyl)-11-azatetracyclo[6.5.2.0~2,7~.0~9,13~]pentadeca-2,4,6-triene-10,12,14-trione chemical structure, C21H17NO3, CAS 329271-57-0](/s/MJNGQQGXBHYKAI-UHFFFAOYSA-N.svg)
11-(2-Methylphenyl)-11-azatetracyclo[6.5.2.0~2,7~.0~9,13~]pentadeca-2,4,6-triene-10,12,14-trione
CAS 329271-57-0C21H17NO3
ER-38925
CAS 196517-43-8C21H17NO3
N-Biphenyl-2-yl-2-(4-formyl-phenoxy)-acetamide
CAS 17172-60-0C21H17NO3
![5-Methoxy-2-methyl-1-phenyl-1H-benzo[g]indole-3-carboxylic acid chemical structure, C21H17NO3, CAS 19616-12-7](/s/PKTLXGAGORPEHN-UHFFFAOYSA-N.svg)
5-Methoxy-2-methyl-1-phenyl-1H-benzo[g]indole-3-carboxylic acid
CAS 19616-12-7C21H17NO3
3-(1-Naphthyl)-3-(1-oxo-1,3-dihydro-2H-isoindol-2-yl)propanoic acid
CAS 439096-80-7C21H17NO3
N-(4-Benzoylphenyl)-4-methoxybenzamide
CAS 316150-78-4C21H17NO3
N-(Diphenylmethyl)phthalamic acid
CAS 94881-00-2C21H17NO3
4-Acetylphenyl diphenylcarbamate
CAS 431984-86-0C21H17NO3
(9H-Fluoren-9-yl)methyl N-(2-hydroxyphenyl)carbamate
CAS 1263046-29-2C21H17NO3
![2'-{[Methyl(phenyl)amino]carbonyl}-2-biphenylcarboxylic acid chemical structure, C21H17NO3, CAS 321579-00-4](/s/GRSQDGOFHUDFQN-UHFFFAOYSA-N.svg)
2'-{[Methyl(phenyl)amino]carbonyl}-2-biphenylcarboxylic acid
CAS 321579-00-4C21H17NO3
![4-[(4-Hydroxyphenyl)methylidene]-1,2,3,4-tetrahydroacridine-9-carboxylic acid chemical structure, C21H17NO3, CAS 748777-73-3](/s/RBZGMDZGZGUXIP-WYMLVPIESA-N.svg)
4-[(4-Hydroxyphenyl)methylidene]-1,2,3,4-tetrahydroacridine-9-carboxylic acid
CAS 748777-73-3C21H17NO3
![4-[(2-Oxo-1,2-diphenylethyl)amino]benzoic acid chemical structure, C21H17NO3, CAS 5397-55-7](/s/WBOWCSGYFWATPV-UHFFFAOYSA-N.svg)
4-[(2-Oxo-1,2-diphenylethyl)amino]benzoic acid
CAS 5397-55-7C21H17NO3
![(2-Hydroxy-5-methylphenyl)(9-methyl-5H-chromeno[4,3-b]pyridin-3-yl)methanone chemical structure, C21H17NO3, CAS 651727-48-9](/s/CNNBJRQWIRDJNO-UHFFFAOYSA-N.svg)
(2-Hydroxy-5-methylphenyl)(9-methyl-5H-chromeno[4,3-b]pyridin-3-yl)methanone
CAS 651727-48-9C21H17NO3
![3-[(2,2-Diphenylacetyl)amino]benzoic acid chemical structure, C21H17NO3, CAS 304884-37-5](/s/KQPUCASWMPCCHY-UHFFFAOYSA-N.svg)
3-[(2,2-Diphenylacetyl)amino]benzoic acid
CAS 304884-37-5C21H17NO3
4-Benzoyl-N-(4-methoxyphenyl)benzamide
CAS 339229-39-9C21H17NO3
- 4-Benzoylphenyl methyl(phenyl)carbamate526190-41-0C21H17NO3
- N-(2-Methoxyphenyl)-9H-xanthene-9-carboxamide349117-19-7C21H17NO3
- N-(2-Methoxydibenzofuran-3-yl)-2-phenylacetamide423737-85-3C21H17NO3
- N-(4-Benzoylphenyl)-2-phenoxyacetamide212074-41-4C21H17NO3
- 4-(((4-(Phenylmethoxy)phenyl)methylene)amino)benzoic acid64518-90-7C21H17NO3
- Benzyl 9H-xanthen-9-ylcarbamate6331-77-7C21H17NO3
- Methyl 4-[(4-phenylbenzoyl)amino]benzoate270914-10-8C21H17NO3
- 3-Hydroxy-1-methyl-3-(2-naphthalen-1-yl-2-oxoethyl)indol-2-one433236-23-8C21H17NO3
- Methyl 2-[(biphenyl-4-ylcarbonyl)amino]benzoate349399-08-2C21H17NO3
- 3-(2-(Benzyloxy)benzyl)benzo[d]oxazol-2(3H)-one836662-50-1C21H17NO3
- 2-[4-(Dimethylamino)phenyl]-3-hydroxybenzo[h]chromen-4-one838886-78-5C21H17NO3
- 2-(2-Benzoylphenoxy)-N-phenylacetamide42018-53-1C21H17NO3
- Phenacyl 2,3-dihydro-1H-cyclopenta[b]quinoline-9-carboxylate356081-20-4C21H17NO3
- (9H-Fluoren-9-yl)methyl N-(3-hydroxyphenyl)carbamate218787-57-6C21H17NO3
- N-(3-Methoxyphenyl)-9H-xanthene-9-carboxamide349401-10-1C21H17NO3
- N-(4-Methoxyphenyl)-9H-xanthene-9-carboxamide5879-91-4C21H17NO3
- N-(2,3-Dihydro-1,4-benzodioxin-6-yl)biphenyl-4-carboxamide301307-01-7C21H17NO3
- RefChem:3812695928-02-9C21H17NO3
- 2'-(2-Toluidinocarbonyl)[1,1'-biphenyl]-2-carboxylic acid24013-63-6C21H17NO3
- Phenol, 4-(((4-methoxyphenyl)methylene)amino)-, 1-benzoate16571-39-4C21H17NO3
- Benzoyl[1,1a(2)-biphenyl]-4-ylazanyl acetate475473-89-3C21H17NO3
- 5-(4-Phenylbenzoyl)-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid96327-61-6C21H17NO3
- 3-Hydroxy-5-methyl-3-(2-naphthalen-1-yl-2-oxoethyl)-1H-indol-2-one371130-39-1C21H17NO3
- 4-(N-Acenaphthen-5-ylcarbamoyl)phenyl acetate317325-14-7C21H17NO3
- (2-(((3-Hydroxy-4-methoxyphenyl)methylene)amino)phenyl)methanone41242-39-1C21H17NO3
- 3-(4-Oxo-2-phenyl-4,5,6,7-tetrahydro-1H-indol-1-yl)benzoic acid405921-88-2C21H17NO3
- 3-(4-(Benzyloxy)benzyl)benzo[d]oxazol-2(3H)-one833430-32-3C21H17NO3
- 2-((2-Hydroxy-4-methoxybenzylidene)amino)benzophenone41242-40-4C21H17NO3
- 2-Amino-benzoic acid 2-biphenyl-4-yl-2-oxo-ethyl ester130627-14-4C21H17NO3
- 3-Methoxy-N-(9H-xanthen-9-yl)benzamide301207-86-3C21H17NO3
- Benzoic acid, 4-(benzoylamino)-, 4-methylphenyl ester78079-55-7C21H17NO3
- N-(4-Methoxyphenyl)-2-naphtho[2,1-b]furan-1-ylacetamide616203-67-9C21H17NO3
- Methyl 4-[[(E)-3-naphthalen-1-ylprop-2-enoyl]amino]benzoate328026-74-0C21H17NO3
- 9,10-Anthracenedione, 1-amino-2-(4,4-dimethyl-3-oxo-1-pentynyl)-129995-14-8C21H17NO3
- 4-(Cbz-Amino)-4'-formylbiphenyl939758-25-5C21H17NO3
- 2-(Biphenyl-4-yl)-2-oxoethyl 4-aminobenzoate6942-68-3C21H17NO3
- N-(1,3-Benzodioxol-5-ylmethyl)-4-phenylbenzamide349621-84-7C21H17NO3
- Phenyl 4-{[(4-methylphenyl)carbonyl]amino}benzoate88340-34-5C21H17NO3
- 2-(Anilinocarbonyl)phenyl 4-methylbenzoate431999-73-4C21H17NO3
- 2-Methoxy-N-(9H-xanthen-9-yl)benzamide352335-24-1C21H17NO3
- 1-[4-(1-Naphthyloxy)phenyl]-2,6-piperidinedione351990-07-3C21H17NO3
- N-(2-Methoxydibenzo[b,d]furan-3-yl)-2-methylbenzamide332036-76-7C21H17NO3
- 3-[(4-Methoxyphenyl)methylidene]-1H,2H,3H-cyclopenta[b]quinoline-9-carboxylic acid380342-11-0C21H17NO3
- 3-Hydroxy-2-(4-methoxyphenyl)-3-phenyl-2,3-dihydro-1H-isoindol-1-one3532-69-2C21H17NO3
- N-(1,2-Dihydroacenaphthylen-5-yl)-2,3-dihydro-1,4-benzodioxine-6-carboxamide477555-31-0C21H17NO3
- N-Dibenzofuran-2-yl-2-(3-methylphenoxy)acetamide314042-18-7C21H17NO3
- N-(2-Oxo-2-phenylethyl)-1,2-dihydronaphtho[2,1-b]furan-2-carboxamide478078-35-2C21H17NO3
- 4-(2-Oxo-1,2,3,4-tetrahydrobenzo[h]quinolin-4-yl)phenyl acetate313986-09-3C21H17NO3
- [(E)-(5-Methoxy-2,3-dihydroinden-1-ylidene)amino] naphthalene-1-carboxylate5926-21-6C21H17NO3
- (E)-4-(2-(Pyridin-4-yl)vinyl)phenyl 4-methoxybenzoate122408-78-0C21H17NO3
- (E)-4-(2-(Pyridin-2-yl)vinyl)phenyl 3-methoxybenzoate1011574-31-4C21H17NO3
- (E)-4-(2-(Pyridin-2-yl)vinyl)phenyl 4-methoxybenzoate52686-47-2C21H17NO3
- Benzyl N-(3-benzoylphenyl)carbamate1020245-95-7C21H17NO3
- N-(4-Ethoxyphenyl)naphtho[2,1-b]furan-2-carboxamide445426-67-5C21H17NO3
- N-(2-Benzoylphenyl)-4-methoxybenzamide36192-65-1C21H17NO3
- 2-(4-Methylphenyl)-2-oxo-1-phenylethyl isonicotinate524043-73-0C21H17NO3
- 17-(Allyloxy)-17-azapentacyclo[6.6.5.0~2,7~.0~9,14~.0~15,19~]nonadeca-2(7),3,5,9(14),10,12-hexaene-16,18-dione478029-55-9C21H17NO3
- N-(2-Methoxy-5-methylphenyl)dibenzofuran-4-carboxamide893764-22-2C21H17NO3
- 2-Naphthalenecarboxylic acid, 7-cyano-4-(phenylmethoxy)-, ethyl ester178877-04-8C21H17NO3
- 3'-Formyl-4'-hydroxy-N-(phenylmethyl)[1,1'-biphenyl]-3-carboxamide1093118-98-9C21H17NO3
- 1-[3-(Naphthalen-1-yloxy)propyl]-1H-indole-2,3-dione842957-45-3C21H17NO3
- 3a,11c-Dihydro-3H-benzo[5,6]chromeno[4,3-c]isoxazol-1(4H)-yl(phenyl)methanone317833-15-1C21H17NO3
- (9H-Fluoren-9-yl)methyl N-(4-hydroxyphenyl)carbamate218787-58-7C21H17NO3
- 4-[6-(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)hex-1-yn-1-yl]benzaldehyde1323192-58-0C21H17NO3
- 3-[6-(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)hex-1-yn-1-yl]benzaldehyde1323192-74-0C21H17NO3
- 2-[6-(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)hex-1-yn-1-yl]benzaldehyde1314743-10-6C21H17NO3
- N-(2-Hydroxy-2-(naphthalen-1-yl)ethyl)benzofuran-2-carboxamide1351648-91-3C21H17NO3
- Methyl 4-[3-(phenylaminocarbonyl)phenyl]benzoate579510-90-0C21H17NO3
- (4Z)-4-[(4-Hydroxyphenyl)methylidene]-2,3-dihydro-1H-acridine-9-carboxylic acidC21H17NO3
- 2-(9-Oxo-9H-fluoren-2-yl)hexahydro-1H-isoindole-1,3(2H)-dione6341-16-8C21H17NO3
- 2-(N-Benzoylanilino)-3-methylbenzoic acid50405-25-9C21H17NO3
- N-(2-Ethoxyphenyl)naphtho[2,1-b]furan-2-carboxamide431911-85-2C21H17NO3
- 2'-(Benzylcarbamoyl)-[1,1'-biphenyl]-2-carboxylic acid88323-43-7C21H17NO3
- 4-Isoxazolecarboxylic acid, 3-(9-anthracenyl)-5-methyl-, ethyl ester169692-06-2C21H17NO3
- 6,7-Dimethoxy-4-(2-naphthyloxy)quinoline190728-17-7C21H17NO3
- 5-Methyl-1-[2-(naphthalen-2-yloxy)ethyl]-1H-indole-2,3-dione937672-02-1C21H17NO3
Frequently asked questions
What is the molar mass of C21H17NO3?
The molar mass of C21H17NO3 is 331.37 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 1 nitrogen atom and 3 oxygen atoms. The monoisotopic mass is 331.1208 Da.
How many compounds have the formula C21H17NO3?
CompoundList lists 144 compounds with the molecular formula C21H17NO3, including Bibr 1532, 3,3-Bis(4-hydroxyphenyl)-7-methyl-1,3-dihydro-2H-indol-2-one, 3-(4-Methoxyanilino)-3-phenyl-2-benzofuran-1-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 C21H17NO3?
C21H17NO3 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.