Molecular formula
C21H17N3O4
171 compounds have this formula on CompoundList.
- Molar mass
- 375.38g/mol
- Monoisotopic mass
- 375.1219Da
- Atoms
- 45
- Elements
- 4
- Rings plus double bonds
- 15
The formula C21H17N3O4 describes a molecule made of 21 carbon atoms, 17 hydrogen atoms, 3 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 × 2167.19%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 174.56%1.008 × 17 = 17.136 g/mol
- N Nitrogen × 311.19%14.007 × 3 = 42.021 g/mol
- O Oxygen × 417.05%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C21H17N3O4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 171 compounds
N-((Benzoylamino)(3-nitrophenyl)methyl)benzamide
CAS 40891-13-2C21H17N3O4
Nortadalafil
CAS 171596-36-4C21H17N3O4
![N-[4-[5-(2-Furanyl)-1,3,4-oxadiazol-2-yl]phenyl]-2-(2-methoxyphenyl)acetamide chemical structure, C21H17N3O4, CAS 496875-73-1](/s/OHSIRHBXHGGCQC-UHFFFAOYSA-N.svg)
N-[4-[5-(2-Furanyl)-1,3,4-oxadiazol-2-yl]phenyl]-2-(2-methoxyphenyl)acetamide
CAS 496875-73-1C21H17N3O4
2-(4-Methoxyphenoxy)-N-(2-pyridin-4-yl-1,3-benzoxazol-5-yl)acetamide
CAS 292058-98-1C21H17N3O4
![3,4-Dimethoxy-N-[2-(pyridin-3-yl)-1,3-benzoxazol-5-yl]benzamide chemical structure, C21H17N3O4, CAS 313700-16-2](/s/KJQGNSAVFWNSCJ-UHFFFAOYSA-N.svg)
3,4-Dimethoxy-N-[2-(pyridin-3-yl)-1,3-benzoxazol-5-yl]benzamide
CAS 313700-16-2C21H17N3O4
![N-(Furan-2-ylmethyl)-2-[3-(2-methoxyphenyl)-1,2,4-oxadiazol-5-yl]benzamide chemical structure, C21H17N3O4, CAS 831234-46-9](/s/NWRUFRXDTMWQPA-UHFFFAOYSA-N.svg)
N-(Furan-2-ylmethyl)-2-[3-(2-methoxyphenyl)-1,2,4-oxadiazol-5-yl]benzamide
CAS 831234-46-9C21H17N3O4
N-(Furan-2-ylmethyl)-N-(4-hydroxyphenyl)-2-(4-oxoquinazolin-3-yl)acetamide
CAS 433324-43-7C21H17N3O4
![N-[4-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]phenyl]-2-(4-methylphenoxy)acetamide chemical structure, C21H17N3O4, CAS 330832-85-4](/s/RKZIMYYFNIGUHQ-UHFFFAOYSA-N.svg)
N-[4-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]phenyl]-2-(4-methylphenoxy)acetamide
CAS 330832-85-4C21H17N3O4
![Methyl (E)-2-cyano-3-[2-(3,5-dimethylphenoxy)-4-oxopyrido[1,2-a]pyrimidin-3-yl]prop-2-enoate chemical structure, C21H17N3O4, CAS 620108-62-5](/s/AEFLTQLCLGCAJJ-RVDMUPIBSA-N.svg)
Methyl (E)-2-cyano-3-[2-(3,5-dimethylphenoxy)-4-oxopyrido[1,2-a]pyrimidin-3-yl]prop-2-enoate
CAS 620108-62-5C21H17N3O4
![(E)-Methyl 2-cyano-3-(2-(2,3-dimethylphenoxy)-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)acrylate chemical structure, C21H17N3O4, CAS 620109-17-3](/s/WMOXMCPCVNPBCN-RVDMUPIBSA-N.svg)
(E)-Methyl 2-cyano-3-(2-(2,3-dimethylphenoxy)-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)acrylate
CAS 620109-17-3C21H17N3O4
![2-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]pyrimidine-5-carboxylic acid chemical structure, C21H17N3O4, CAS 503471-31-6](/s/VZMVBKVWDIQXJP-UHFFFAOYSA-N.svg)
2-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]pyrimidine-5-carboxylic acid
CAS 503471-31-6C21H17N3O4
N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-2-oxo-2H-chromene-3-carboxamide
CAS 301681-84-5C21H17N3O4
![Ethyl (E)-2-cyano-3-[2-(3-methylphenoxy)-4-oxopyrido[1,2-a]pyrimidin-3-yl]prop-2-enoate chemical structure, C21H17N3O4, CAS 620106-40-3](/s/GLWOFKTYWPTJSW-NTCAYCPXSA-N.svg)
Ethyl (E)-2-cyano-3-[2-(3-methylphenoxy)-4-oxopyrido[1,2-a]pyrimidin-3-yl]prop-2-enoate
CAS 620106-40-3C21H17N3O4
N'-(3-(Benzyloxy)benzylidene)-4-nitrobenzohydrazide
CAS 328916-24-1C21H17N3O4
![3,4-Dimethoxy-N-(3-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)benzamide chemical structure, C21H17N3O4, CAS 334502-91-9](/s/KOFVOWWCBHVBTH-UHFFFAOYSA-N.svg)
3,4-Dimethoxy-N-(3-[1,3]oxazolo[4,5-b]pyridin-2-ylphenyl)benzamide
CAS 334502-91-9C21H17N3O4
![2-(4-Methoxyphenoxy)-N-[4-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]acetamide chemical structure, C21H17N3O4, CAS 347322-23-0](/s/VFKOILJEQUYKEF-UHFFFAOYSA-N.svg)
2-(4-Methoxyphenoxy)-N-[4-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]acetamide
CAS 347322-23-0C21H17N3O4
![3,4-Dimethoxy-N-[4-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide chemical structure, C21H17N3O4, CAS 314044-24-1](/s/AODQLJHVODQECM-UHFFFAOYSA-N.svg)
3,4-Dimethoxy-N-[4-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide
CAS 314044-24-1C21H17N3O4
![2-[[Cyclopropyl-[(1,3-dioxoisoindol-2-yl)methyl]amino]methyl]isoindole-1,3-dione chemical structure, C21H17N3O4, CAS 296773-43-8](/s/WXMCETSLHBXYLH-UHFFFAOYSA-N.svg)
2-[[Cyclopropyl-[(1,3-dioxoisoindol-2-yl)methyl]amino]methyl]isoindole-1,3-dione
CAS 296773-43-8C21H17N3O4
Methyl 4-(2-((1-naphthylamino)(oxo)acetyl)carbohydrazonoyl)benzoate
CAS 331264-88-1C21H17N3O4
![2-(4-Methoxyphenoxy)-N-[3-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]acetamide chemical structure, C21H17N3O4, CAS 353466-38-3](/s/UCYLDBNTWUMHEB-UHFFFAOYSA-N.svg)
2-(4-Methoxyphenoxy)-N-[3-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]acetamide
CAS 353466-38-3C21H17N3O4
![3,5-Dimethoxy-N-[4-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide chemical structure, C21H17N3O4, CAS 6005-63-6](/s/YGIFMZZSQXCQRX-UHFFFAOYSA-N.svg)
3,5-Dimethoxy-N-[4-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide
CAS 6005-63-6C21H17N3O4
N'-(3-(Benzyloxy)benzylidene)-3-nitrobenzohydrazide
CAS 344936-43-2C21H17N3O4
N'-(2-(Benzyloxy)benzylidene)-4-nitrobenzohydrazide
CAS 302909-88-2C21H17N3O4
N-(4-(5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl)phenyl)-2-(o-tolyloxy)acetamide
CAS 385389-39-9C21H17N3O4
- 3,5-Dimethoxy-N-[3-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide312620-98-7C21H17N3O4
- N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-4-oxo-4H-chromene-2-carboxamide556007-19-3C21H17N3O4
- N-(Furan-2-ylmethyl)-2-(4-naphthalen-1-yl-2,3-dioxopyrazin-1-yl)acetamide898409-10-4C21H17N3O4
- N'-(Diphenylmethyl)-N-(3-nitrophenyl)ethanediamide899744-36-6C21H17N3O4
- N-Ethyl-N-(3-methylphenyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-sulfonamide1207008-03-4C21H17N3O4
- N-[2-(4-Ethoxyphenyl)-5-oxo-5H-chromeno[4,3-d]pyrimidin-4-yl]acetamide444151-52-4C21H17N3O4
- 2-Amino-4-(4-hydroxy-3-methoxyphenyl)-6-methyl-5-oxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carbonitrile697237-08-4C21H17N3O4
- 6-(2-(((9H-Fluoren-9-yl)methoxy)carbonyl)hydrazinyl)nicotinic acid444794-69-8C21H17N3O4
- 6-[(6,7-Dimethoxy-4-quinazolinyl)oxy]-1-naphthalenecarboxamide861879-09-6C21H17N3O4
- 3-{[1-Methyl-6-(pyridin-3-yloxy)-1H-benzimidazol-2-yl]methoxy}benzoic acid1072001-93-4C21H17N3O4
- 3-Hydroxy-4-(5-methylfuran-2-carbonyl)-1-(pyrimidin-2-yl)-5-(p-tolyl)-1H-pyrrol-2(5H)-one385388-19-2C21H17N3O4
- (E)-4-((2-((2-Isonicotinoylhydrazono)methyl)phenoxy)methyl)benzoic acid354561-77-6C21H17N3O4
- (Z)-Ethyl 2-methyl-5-oxo-4-((pyrimidin-2-ylamino)methylene)-4,5-dihydronaphtho[1,2-b]furan-3-carboxylate526188-46-5C21H17N3O4
- 4-(1,3-Dimethyl-2,4-dioxo-5-phenyl-1,2,3,4-tetrahydro-6H-pyrrolo[3,4-d]pyrimidin-6-yl)benzoic acid433971-13-2C21H17N3O4
- (E)-Methyl 2-cyano-3-(9-methyl-4-oxo-2-(m-tolyloxy)-4H-pyrido[1,2-a]pyrimidin-3-yl)acrylate620112-60-9C21H17N3O4
- 2-(5-Methylfuran-2-yl)-5-(4-nitrophenyl)-1,10b-dihydropyrazolo[1,5-c][1,3]benzoxazine325831-46-7C21H17N3O4
- 2-{4-[(4-Nitrophenyl)methoxy]phenyl}-1,2,3,4-tetrahydroquinazolin-4-one358775-08-3C21H17N3O4
- N-[Benzamido-(4-nitrophenyl)methyl]benzamide39057-64-2C21H17N3O4
- 2-(4-Methoxyphenoxy)-N-(2-pyridin-3-yl-1,3-benzoxazol-5-yl)acetamide425661-98-9C21H17N3O4
- 3-Benzamido-N-(2-methyl-4-nitrophenyl)benzamide600124-85-4C21H17N3O4
- (E)-4-((2-Benzoylhydrazono)methyl)-2-methoxyphenyl nicotinate326883-20-9C21H17N3O4
- N-(1H-Benzimidazol-2-yl)-2-[(4-oxo-1,2,3,4-tetrahydrocyclopenta[c]chromen-7-yl)oxy]acetamide903190-96-5C21H17N3O4
- 3-[3-(1,3-Benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]-1-ethyl-6-methylquinolin-4(1H)-one1260743-98-3C21H17N3O4
- 2,6-Dimethoxy-N-(2-pyridin-4-yl-1,3-benzoxazol-5-yl)benzamide701226-27-9C21H17N3O4
- (E)-Methyl 2-cyano-3-(2-(4-ethylphenoxy)-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)acrylate620106-72-1C21H17N3O4
- Ethyl 2-{5-phenyl-12,14-dioxa-3,4,8-triazatetracyclo[7.7.0.0^{2,6}.0^{11,15}]hexadeca-1(16),2(6),4,7,9,11(15)-hexaen-3-yl}acetate901264-94-6C21H17N3O4
- N-[4-(Benzylcarbamoyl)phenyl]-3-nitrobenzamide311789-15-8C21H17N3O4
- Ethyl 1-{4-nitrophenyl}-2-methyl-1H-pyrido[3,2-b]indole-3-carboxylate374697-64-0C21H17N3O4
- 3-Benzamido-N-(2-methyl-3-nitrophenyl)benzamide587846-33-1C21H17N3O4
- 6-(Dimethylamino)-2-(2-methylphenyl)-5-nitrobenzo[de]isoquinoline-1,3-dione690967-08-9C21H17N3O4
- N-[4-(Pyridin-2-ylcarbamoyl)phenyl]-2,3-dihydro-1,4-benzodioxine-3-carboxamide442552-64-9C21H17N3O4
- 3-Methoxy-N-[5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-yl]naphthalene-2-carboxamide897615-62-2C21H17N3O4
- 4-Methoxy-N-[2-methoxy-5-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide887691-09-0C21H17N3O4
- N'-[4-(Benzyloxy)benzylidene]-2-nitrobenzohydrazide304480-93-1C21H17N3O4
- 5-((Furan-2-ylmethyl)amino)-2-(5-((p-tolyloxy)methyl)furan-2-yl)oxazole-4-carbonitrile941968-98-5C21H17N3O4
- 2-[1-(2-Furylcarbonyl)-3-oxo-1,2,3,4-tetrahydro-2-quinoxalinyl]-N~1~-phenylacetamide1219397-46-2C21H17N3O4
- 5-((Furan-2-ylmethyl)amino)-2-(5-((m-tolyloxy)methyl)furan-2-yl)oxazole-4-carbonitrile946201-08-7C21H17N3O4
- 2-(2-(4-(4-Methoxyphenyl)-6-oxopyrimidin-1(6H)-yl)ethyl)isoindoline-1,3-dione1234912-48-1C21H17N3O4
- 2-(2H-1,3-Benzodioxol-5-yl)-5-[(4-methoxyphenyl)methyl]-4H,5H-pyrazolo[1,5-a]pyrazin-4-one1326876-64-5C21H17N3O4
- 2-({4-[2-(1H-Indol-3-yl)-2-oxoacetamido]but-2-YN-1-YL}oxy)benzamide1421525-74-7C21H17N3O4
- 3-Benzamido-N-(2-methyl-5-nitrophenyl)benzamide600125-05-1C21H17N3O4
- (Z)-1-(3-Methoxyphenyl)-5-((1-methyl-1H-indol-3-yl)methylene)pyrimidine-2,4,6(1H,3H,5H)-trione311764-20-2C21H17N3O4
- N-[4-[5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl]phenyl]-2-(4-methoxyphenyl)acetamide381208-50-0C21H17N3O4
- 2,4-Dimethoxy-N-[3-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]benzamide879576-37-1C21H17N3O4
- (4-Formyl-2-methoxyphenyl) 1-(2-cyanoethyl)-3-phenylpyrazole-4-carboxylate956197-94-7C21H17N3O4
- N-(5-(2,4-Dimethoxyphenyl)-1,3,4-oxadiazol-2-yl)-1-naphthamide865286-84-6C21H17N3O4
- (4E)-4-[Hydroxy(4-methylphenyl)methylidene]-1-(5-methyl-1,2-oxazol-3-yl)-5-(pyridin-3-yl)pyrrolidine-2,3-dione848219-55-6C21H17N3O4
- 4-[2-(5-Methyl-1-phenyl-1H-pyrazol-4-yl)-2-oxoethyl]-1,4-benzoxazepine-3,5(2H,4H)-dione956730-93-1C21H17N3O4
- N'-[2-(Benzyloxy)benzylidene]-3-nitrobenzohydrazide314283-43-7C21H17N3O4
- 4-((2,4-Dioxo-1,2-dihydroquinazolin-3(4H)-yl)methyl)-N-(furan-2-ylmethyl)benzamide896373-91-4C21H17N3O4
- N'-(Diphenylmethyl)-N-(4-nitrophenyl)ethanediamide899743-74-9C21H17N3O4
- 4-Oxo-N-{4-[4-(propan-2-yl)phenyl]-1,2,5-oxadiazol-3-yl}-4H-chromene-2-carboxamide942837-32-3C21H17N3O4
- 5-(Indoline-1-carbonyl)-1-(3-nitrobenzyl)pyridin-2(1H)-one900010-27-7C21H17N3O4
- 2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-(8-methoxy-2-methylquinolin-4-yl)acetamide1010907-80-8C21H17N3O4
- N-(4-(2-Carbamoylphenoxy)but-2-yn-1-yl)-5-phenylisoxazole-3-carboxamide1421482-64-5C21H17N3O4
- N-[2-Methoxy-5-([1,3]oxazolo[4,5-b]pyridin-2-yl)phenyl]-2-phenoxyacetamide885000-86-2C21H17N3O4
- 3-(Indoline-1-carbonyl)-1-(3-nitrobenzyl)pyridin-2(1H)-one946222-82-8C21H17N3O4
- N-[5-(3,4-Dimethoxyphenyl)-1,3,4-oxadiazol-2-yl]naphthalene-2-carboxamide923095-80-1C21H17N3O4
- 2-(1H-Indol-3-yl)-N-((5-(3-methoxyphenyl)isoxazol-3-yl)methyl)-2-oxoacetamide953014-17-0C21H17N3O4
- 2-(1H-Indol-3-yl)-N-((5-(4-methoxyphenyl)isoxazol-3-yl)methyl)-2-oxoacetamide953232-30-9C21H17N3O4
- 5-((Furan-2-ylmethyl)amino)-2-(5-((o-tolyloxy)methyl)furan-2-yl)oxazole-4-carbonitrile941912-36-3C21H17N3O4
- 5-(3,4-Dimethoxyphenyl)-2-phenyl-3H-imidazo[4,5-b]pyridine-7-carboxylic acid1021113-17-6C21H17N3O4
- 5-(2,3-Dimethoxyphenyl)-2-phenyl-3H-imidazo[4,5-b]pyridine-7-carboxylic acid1021052-20-9C21H17N3O4
- 5-(2,5-Dimethoxyphenyl)-2-phenyl-3H-imidazo[4,5-b]pyridine-7-carboxylic acid1020978-18-0C21H17N3O4
- 5-(2,4-Dimethoxyphenyl)-2-phenyl-3H-imidazo[4,5-b]pyridine-7-carboxylic acid1021083-26-0C21H17N3O4
- N-[1-(4-Methoxybenzyl)-1H-pyrazol-5-yl]-2-oxo-2H-chromene-3-carboxamide1170941-04-4C21H17N3O4
- [(Cyanomethyl)(phenyl)carbamoyl]methyl 2-(2-phenyl-1,3-oxazol-4-yl)acetate1099348-80-7C21H17N3O4
- N-(2-Oxo-2H-chromen-6-yl)-4-(4-oxoquinazolin-3(4H)-yl)butanamide1190264-38-0C21H17N3O4
- 6-[(4-Oxo-1H-quinolin-3-yl)carbonylamino]-1H-indole-5-carboxylic acid ethyl ester873052-03-0C21H17N3O4
- 3-(4-Amino-3-nitrophenyl)-2-benzyl-3-hydroxyisoindolin-1-one870604-56-1C21H17N3O4
- 2-((1-(4-Oxo-4H-chromene-2-carbonyl)piperidin-4-yl)oxy)nicotinonitrile1797596-73-6C21H17N3O4
- (E)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(2-(1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)acrylamide1428382-10-8C21H17N3O4
- 2-((1-(2-Oxo-2H-chromene-3-carbonyl)piperidin-4-yl)oxy)nicotinonitrile1797224-93-1C21H17N3O4
- (6R,12aS)-N-Desmethyl ent-Tadalafil929100-66-3C21H17N3O4
- (5Z)-1-(3-Methoxyphenyl)-5-[(2-methyl-1H-indol-3-yl)methylidene]-1,3-diazinane-2,4,6-trione373376-12-6C21H17N3O4
- Ethyl 5-cyano-2-methyl-4-(4-nitrophenyl)-1-phenyl-1H-pyrrole-3-carboxylate22108-64-1C21H17N3O4
Frequently asked questions
What is the molar mass of C21H17N3O4?
The molar mass of C21H17N3O4 is 375.38 g/mol, calculated from standard atomic weights for 21 carbon atoms, 17 hydrogen atoms, 3 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 375.1219 Da.
How many compounds have the formula C21H17N3O4?
CompoundList lists 171 compounds with the molecular formula C21H17N3O4, including N-((Benzoylamino)(3-nitrophenyl)methyl)benzamide, Nortadalafil, N-[4-[5-(2-Furanyl)-1,3,4-oxadiazol-2-yl]phenyl]-2-(2-methoxyphenyl)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 C21H17N3O4?
C21H17N3O4 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.