Molecular formula
C21H18N2O5
170 compounds have this formula on CompoundList.
- Molar mass
- 378.38g/mol
- Monoisotopic mass
- 378.1216Da
- Atoms
- 46
- Elements
- 4
- Rings plus double bonds
- 14
The formula C21H18N2O5 describes a molecule made of 21 carbon atoms, 18 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 × 2166.66%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 184.80%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 27.40%14.007 × 2 = 28.014 g/mol
- O Oxygen × 521.14%15.999 × 5 = 79.995 g/mol
Look up another formula
Compounds with the formula C21H18N2O5
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 170 compounds
SB 328437
CAS 247580-43-4C21H18N2O5
9-Methoxycamptothecin
CAS 39026-92-1C21H18N2O5
10-Methoxycamptothecin
CAS 19685-10-0C21H18N2O5
![3-[[3-(4-Morpholinyl)-1,4-dioxo-2-naphthalenyl]amino]benzoic acid chemical structure, C21H18N2O5, CAS 439938-84-8](/s/RKRRTHBMNDJIQQ-UHFFFAOYSA-N.svg)
3-[[3-(4-Morpholinyl)-1,4-dioxo-2-naphthalenyl]amino]benzoic acid
CAS 439938-84-8C21H18N2O5
1-(2-Phenanthrenylcarbonyl)-2,3-piperazinedicarboxylic acid
CAS 1202172-03-9C21H18N2O5
![3,4-Dimethoxy-5-oxo-7,8,13,13b-tetrahydro-5H-benzo[1,2]indolizino[8,7-b]indole-7-carboxylic acid chemical structure, C21H18N2O5, CAS 462606-87-7](/s/NNRWDPOHSYYGEI-UHFFFAOYSA-N.svg)
3,4-Dimethoxy-5-oxo-7,8,13,13b-tetrahydro-5H-benzo[1,2]indolizino[8,7-b]indole-7-carboxylic acid
CAS 462606-87-7C21H18N2O5
(2s,3r)-1-(Phenanthren-2-Ylcarbonyl)piperazine-2,3-Dicarboxylic Acid
CAS 684283-16-7C21H18N2O5
![1-Allyl-N-(benzo[d][1,3]dioxol-5-ylmethyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide chemical structure, C21H18N2O5, CAS 333760-82-0](/s/DCINNHXNUUXKKP-UHFFFAOYSA-N.svg)
1-Allyl-N-(benzo[d][1,3]dioxol-5-ylmethyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide
CAS 333760-82-0C21H18N2O5
![N-[4-(Furan-2-ylmethylcarbamoyl)phenyl]-2,3-dihydro-1,4-benzodioxine-3-carboxamide chemical structure, C21H18N2O5, CAS 694496-80-5](/s/YBVSKAXIDLPZGL-UHFFFAOYSA-N.svg)
N-[4-(Furan-2-ylmethylcarbamoyl)phenyl]-2,3-dihydro-1,4-benzodioxine-3-carboxamide
CAS 694496-80-5C21H18N2O5
![Ethyl 4-[5-(3-hydroxy-4-oxo-1,2,3,4-tetrahydro-2-quinazolinyl)-2-furyl]benzoate chemical structure, C21H18N2O5, CAS 438229-62-0](/s/JNRJHSSQKROMAM-UHFFFAOYSA-N.svg)
Ethyl 4-[5-(3-hydroxy-4-oxo-1,2,3,4-tetrahydro-2-quinazolinyl)-2-furyl]benzoate
CAS 438229-62-0C21H18N2O5
3-(1H-Indol-3-yl)-4-(3,4,5-trimethoxyphenyl)pyrrole-2,5-dione
CAS 863223-52-3C21H18N2O5
![Methyl 2-({1-[(furan-2-yl)formamido]-2-oxo-2-phenylethyl}amino)benzoate chemical structure, C21H18N2O5, CAS 297147-82-1](/s/KCNVGUFEGFQONX-UHFFFAOYSA-N.svg)
Methyl 2-({1-[(furan-2-yl)formamido]-2-oxo-2-phenylethyl}amino)benzoate
CAS 297147-82-1C21H18N2O5
![2-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]-4-methyl-1,3-oxazole-5-carboxylic acid chemical structure, C21H18N2O5, CAS 2445792-63-0](/s/XYLZVVSVOOAWBA-UHFFFAOYSA-N.svg)
2-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]-4-methyl-1,3-oxazole-5-carboxylic acid
CAS 2445792-63-0C21H18N2O5
![Propionic acid 3-{3-[(furan-2-carbonyl)-amino]-phenylcarbamoyl}-phenyl ester chemical structure, C21H18N2O5, CAS 434299-85-1](/s/GDQNJPJUSQQSMI-UHFFFAOYSA-N.svg)
Propionic acid 3-{3-[(furan-2-carbonyl)-amino]-phenylcarbamoyl}-phenyl ester
CAS 434299-85-1C21H18N2O5
![Methyl (4-{[4-(2-furoylamino)benzoyl]amino}phenyl)acetate chemical structure, C21H18N2O5, CAS 518006-97-8](/s/JAJJRMCZRUHKHC-UHFFFAOYSA-N.svg)
Methyl (4-{[4-(2-furoylamino)benzoyl]amino}phenyl)acetate
CAS 518006-97-8C21H18N2O5
![3-(Cyclopropanecarboxamido)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)benzofuran-2-carboxamide chemical structure, C21H18N2O5, CAS 872613-17-7](/s/BDUFIRWIDKJXFS-UHFFFAOYSA-N.svg)
3-(Cyclopropanecarboxamido)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)benzofuran-2-carboxamide
CAS 872613-17-7C21H18N2O5
(2R,3S)-1-(Phenanthrene-3-carbonyl)piperazine-2,3-dicarboxylic acid
CAS 344768-30-5C21H18N2O5
N-(4-Methoxybenzyl)-3-(5-(3-nitrophenyl)-2-furyl)-2-propenamide
CAS 853351-53-8C21H18N2O5
N-(4-Ethoxyphenyl)-3-(5-(3-nitrophenyl)-2-furyl)-2-propenamide
CAS 853351-29-8C21H18N2O5
N-(2-Methoxy-4-nitrophenyl)-3-phenylmethoxybenzamide
CAS 432503-68-9C21H18N2O5
6-Methyl-3-nitro-2-oxo-1,2-dihydropyridin-4-yl 3,3-diphenylpropanoate
CAS 868680-16-4C21H18N2O5
![(2Z)-N-Acetyl-2-[(4-acetylphenyl)imino]-6-methoxy-2H-chromene-3-carboxamide chemical structure, C21H18N2O5, CAS 330663-33-7](/s/IGVQOAMFGNGDNZ-UHFFFAOYSA-N.svg)
(2Z)-N-Acetyl-2-[(4-acetylphenyl)imino]-6-methoxy-2H-chromene-3-carboxamide
CAS 330663-33-7C21H18N2O5
1H-Pyrano(3',4':6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione, 4-ethyl-4-hydroxy-11-(hydroxymethyl)-, (S)-
CAS 78287-14-6C21H18N2O5
![(2Z)-N-Acetyl-2-[(4-acetylphenyl)imino]-8-methoxy-2H-chromene-3-carboxamide chemical structure, C21H18N2O5, CAS 330663-29-1](/s/YPHWXURAXKSPRC-UHFFFAOYSA-N.svg)
(2Z)-N-Acetyl-2-[(4-acetylphenyl)imino]-8-methoxy-2H-chromene-3-carboxamide
CAS 330663-29-1C21H18N2O5
- (2R,3R)-1-(Phenanthrene-2-carbonyl)-piperazine-2,3-dicarboxylic acid850080-36-3C21H18N2O5
- (2R,3S)-1-(Phenanthrene-2-carbonyl)-piperazine-2,3-dicarboxylic acid858131-67-6C21H18N2O5
- N-((5-(3,4-Dimethoxyphenyl)isoxazol-3-yl)methyl)benzofuran-2-carboxamide952970-81-9C21H18N2O5
- Ethyl 2-[3-(4-methylphenyl)-2,4-dioxo-[1]benzofuro[3,2-d]pyrimidin-1-yl]acetate877657-36-8C21H18N2O5
- (E)-3-(But-2-enamido)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)benzofuran-2-carboxamide888465-67-6C21H18N2O5
- N-(4-Ethyl-5-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)-2-oxo-2H-chromene-3-carboxamide922054-95-3C21H18N2O5
- N-(3,3-Dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-2-oxo-2H-chromene-3-carboxamide921777-08-4C21H18N2O5
- 11-(3-Nitrophenyl)-3,6,7,8,9,11-hexahydro-2H-[1,4]benzodioxino[6,7-b]quinolin-10-one3053861-26-7C21H18N2O5
- 1 suppliers(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(oxazol-5-yl)propanoic acid1956434-67-5C21H18N2O5
- [2-(3-Benzofuranyl)-1H-imidazol-5-yl](3,4,5-trimethoxyphenyl)methanone1393085-32-9C21H18N2O5
- (2Z)-2-(Furan-2-ylformamido)-N-(3-hydroxyphenyl)-3-(4-methoxyphenyl)prop-2-enamide304000-72-4C21H18N2O5
- 3-Hydroxy-4-(5-methylfuran-2-carbonyl)-1-(5-methylisoxazol-3-yl)-5-(p-tolyl)-1H-pyrrol-2(5H)-one618872-33-6C21H18N2O5
- N'-[(4-Methoxyphenyl)carbonyl]-2-oxo-8-(prop-2-en-1-yl)-2H-chromene-3-carbohydrazide322414-18-6C21H18N2O5
- (5Z)-5-(1,3-Benzodioxol-5-ylmethylidene)-1-(4-propan-2-ylphenyl)-1,3-diazinane-2,4,6-trione347393-76-4C21H18N2O5
- 17-(3-Hydroxypropyl)-1-nitro-17-azapentacyclo[6.6.5.0~2,7~.0~9,14~.0~15,19~]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione (non-preferred name)433965-79-8C21H18N2O5
- Methyl 6-amino-5-cyano-2-(2-methoxy-2-oxoethyl)-4-(1-naphthyl)-4H-pyran-3-carboxylate865660-04-4C21H18N2O5
- 4-(Benzofuran-2-carbonyl)-3-hydroxy-1-(2-methoxyethyl)-5-(pyridin-3-yl)-1H-pyrrol-2(5H)-one618364-30-0C21H18N2O5
- (3,4-Dihydroquinolin-1(2H)-yl)(5-(4-methoxy-2-nitrophenyl)furan-2-yl)methanone887348-58-5C21H18N2O5
- Benzhydryl 2-(2-amino-2-oxoacetamido)-2-(furan-2-yl)acetate69027-03-8C21H18N2O5
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,3-oxazol-5-yl)propanoic acid1822476-05-0C21H18N2O5
- (2Z)-3-(Acetylcarbamoyl)-2-[(4-methylphenyl)imino]-2H-chromen-7-yl acetate330158-26-4C21H18N2O5
- 5-(Benzyloxy)-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-4-oxo-1,4-dihydropyridine-2-carboxamide1021212-77-0C21H18N2O5
- 2-(4-(Benzyloxy)phenoxy)-N-(3-nitrophenyl)acetamide331869-95-5C21H18N2O5
- 2-(4-Methyl-3-nitrophenyl)-2-oxoethyl 2,6-dimethylquinoline-4-carboxylate355826-71-0C21H18N2O5
- N-(4-Ethoxy-2-nitrophenyl)-3-phenoxybenzamide307326-00-7C21H18N2O5
- 4-{[1-[(2-Furylcarbonyl)amino]-2-(4-methylphenyl)-2-oxoethyl]amino}benzoic acid780775-25-9C21H18N2O5
- (4E)-5-(4-Ethylphenyl)-4-[furan-2-yl(hydroxy)methylidene]-1-(5-methyl-1,2-oxazol-3-yl)pyrrolidine-2,3-dione850825-95-5C21H18N2O5
- N-(1,3-Benzodioxol-5-yl)-5-(benzyloxy)-1-methyl-4-oxo-1,4-dihydropyridine-2-carboxamide1021248-89-4C21H18N2O5
- Methyl 4-({[5-(benzyloxy)-4-hydroxypyridin-2-yl]carbonyl}amino)benzoate1021261-21-1C21H18N2O5
- N-(4-(Benzo[d][1,3]dioxol-5-yloxy)but-2-yn-1-yl)-6-methoxy-1H-indole-2-carboxamide1448051-21-5C21H18N2O5
- 6-[5-(1,3-Benzodioxol-5-yl)-4,5-dihydro-1H-pyrazol-3-yl]-5-hydroxy-4,7-dimethyl-2H-chromen-2-one1010929-16-4C21H18N2O5
- 5-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)ethyl]-1,2-oxazole-3-carboxylic acid2309457-04-1C21H18N2O5
- [2-(3-Nitrophenyl)-2-oxoethyl] 4-(2,5-dimethylpyrrol-1-yl)benzoate328555-27-7C21H18N2O5
- (5E)-1-(1,3-Benzodioxol-5-yl)-5-[(4-propan-2-ylphenyl)methylidene]-1,3-diazinane-2,4,6-trione428490-90-8C21H18N2O5
- N-(1,3-Benzodioxol-5-yl)-1-(4-methoxybenzyl)-2-oxo-1,2-dihydro-3-pyridinecarboxamide400077-73-8C21H18N2O5
- Ethyl 3-[(2E)-3-(2H-1,3-benzodioxol-5-yl)prop-2-enamido]-1H-indole-2-carboxylate686736-69-6C21H18N2O5
- N-(1-(3-Methoxyphenyl)-5-oxopyrrolidin-3-yl)-2-oxo-2H-chromene-3-carboxamide905683-74-1C21H18N2O5
- Benzyl N-[2-(benzyloxy)-3-nitrophenyl]carbamate2055119-21-4C21H18N2O5
- (2S,3S)-1-(Phenanthrene-2-carbonyl)piperazine-2,3-dicarboxylic acid853009-25-3C21H18N2O5
- 4-Ethyl-4-hydroxy-12-methoxy-1H-pyrano(3',4':6,7)indolizino(1,2-b)quinoline-3,14(4H,12H)-dione86688-38-2C21H18N2O5
- 6,7-Dimethoxy-1-[5-(3-nitrophenyl)furan-2-yl]-3,4-dihydroisoquinoline638143-40-5C21H18N2O5
- Dimethyl 5-{[(1E)-2-oxo-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1(2H)-ylidene]amino}benzene-1,3-dicarboxylate774560-00-8C21H18N2O5
- Methyl 4-{(E)-[1-(3,4-dimethylphenyl)-2,4,6-trioxotetrahydropyrimidin-5(2H)-ylidene]methyl}benzoate425624-99-3C21H18N2O5
- 2-(4-(Benzyloxy)phenoxy)-N-(4-nitrophenyl)acetamide331869-81-9C21H18N2O5
- Ethyl 4-(1,3-benzodioxol-5-yl)-5-cyano-2-methyl-6-(1H-pyrrol-1-yl)-4H-pyran-3-carboxylate889967-66-2C21H18N2O5
- (R)-4-Ethyl-4-hydroxy-10-methoxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione1226875-26-8C21H18N2O5
- N-[4-Methoxy-3-(2-oxopyrrolidin-1-yl)phenyl]-2-oxochromene-3-carboxamide922864-24-2C21H18N2O5
- (Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-(4-(methoxymethyl)-2-oxo-1,2-dihydroquinolin-7-yl)acrylamide1251711-08-6C21H18N2O5
- 2-[2-(2,3-Dihydro-1,4-benzodioxin-6-yl)-2-oxoethyl]-6-(3-methoxyphenyl)pyridazin-3(2H)-one1224155-99-0C21H18N2O5
- N-(2H-1,3-Benzodioxol-5-yl)-N'-[2-hydroxy-2-(naphthalen-1-yl)ethyl]ethanediamide1351605-01-0C21H18N2O5
- 2-Methoxy-4-[3-(3-phenoxy-phenyl)-ureido]-benzoic acid617245-43-9C21H18N2O5
- (E)-2-((4-(3-(Benzo[d][1,3]dioxol-5-yl)acrylamido)but-2-yn-1-yl)oxy)benzamide1448139-30-7C21H18N2O5
- cis-1-(Phenanthrene-3-carbonyl)-piperazine-2,3-dicarboxylic AcidC21H18N2O5
- 2-(9H-Fluoren-9-ylmethoxycarbonyl)-5-oxa-2,6-diazaspiro[3.4]oct-6-ene-7-carboxylic acid2140317-10-6C21H18N2O5
- 2-Cyclohexyl-5-(3-nitrobenzoyl)isoindole-1,3-dione402578-01-2C21H18N2O5
- (5E)-5-(1,3-Benzodioxol-5-ylmethylidene)-1-(2,4,6-trimethylphenyl)-1,3-diazinane-2,4,6-trione5310-88-3C21H18N2O5
- Methyl 2-[({3-[(furan-2-ylcarbonyl)amino]-2-methylphenyl}carbonyl)amino]benzoate831212-76-1C21H18N2O5
- 7-Methoxycamptothecin68520-67-2C21H18N2O5
- 2-Oxo-N-((2-oxo-3-(p-tolyl)oxazolidin-5-yl)methyl)-2H-chromene-3-carboxamide954641-96-4C21H18N2O5
- 1-(2-Methoxyphenyl)-5-oxo-N-(2-oxo-2H-chromen-6-yl)pyrrolidine-3-carboxamide1010909-36-0C21H18N2O5
- 1-(4-Methoxyphenyl)-5-oxo-N-(2-oxo-2H-chromen-6-yl)pyrrolidine-3-carboxamide1010871-26-7C21H18N2O5
- N-((5-(Benzofuran-2-yl)isoxazol-3-yl)methyl)-2-(2-methoxyphenoxy)acetamide1105206-18-5C21H18N2O5
- N-{[5-(1-Benzofuran-2-yl)-1,2-oxazol-3-yl]methyl}-2-(3-methoxyphenoxy)acetamide1105242-46-3C21H18N2O5
- N-((5-(Benzofuran-2-yl)isoxazol-3-yl)methyl)-2-(4-methoxyphenoxy)acetamide1105206-24-3C21H18N2O5
- N-(3,3-Dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-2-oxo-2H-chromene-3-carboxamide921527-57-3C21H18N2O5
- 2-Methoxy-5-[4-(phenylmethoxycarbonylamino)phenyl]pyridine-3-carboxylic acid1261928-02-2C21H18N2O5
- 4-Benzyl-5-oxo-N-(2-oxo-2H-chromen-3-yl)morpholine-3-carboxamide1351582-46-1C21H18N2O5
- 2-(1-(2-Oxo-2H-chromene-3-carbonyl)azetidin-3-yl)-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione1795089-16-5C21H18N2O5
- 1'-[2-(2-Oxo-2,3-dihydro-1,3-benzoxazol-3-yl)acetyl]-3,4-dihydrospiro[1-benzopyran-2,3'-pyrrolidine]-4-one1706379-06-7C21H18N2O5
- 1'-(2-(2-Oxobenzo[d]oxazol-3(2H)-yl)acetyl)-3H-spiro[isobenzofuran-1,4'-piperidin]-3-one1704531-85-0C21H18N2O5
- N-(Benzo[d][1,3]dioxol-5-ylmethyl)-4-methoxy-6-oxo-1-phenyl-1,6-dihydropyridine-3-carboxamide2034528-09-9C21H18N2O5
- N1-(benzo[d][1,3]dioxol-5-ylmethyl)-N2-(4-(furan-3-yl)benzyl)oxalamide2034603-42-2C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-benzoylpiperidine-4-carboxylate1967011-62-6C21H18N2O5
- Ethyl 5-formyl-2-methyl-4-(4-nitrophenyl)-1-phenyl-1H-pyrrole-3-carboxylate22108-62-9C21H18N2O5
- 3H-Indazol-3-one, 2,3a,4,5-tetrahydro-4-(1,3-benzodioxol-5-yl)-6-(2-hydroxy-4-methoxyphenyl)-101986-23-6C21H18N2O5
- (Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-((5-(3-methoxyphenyl)isoxazol-3-yl)methyl)acrylamide953253-31-1C21H18N2O5
Frequently asked questions
What is the molar mass of C21H18N2O5?
The molar mass of C21H18N2O5 is 378.38 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms and 5 oxygen atoms. The monoisotopic mass is 378.1216 Da.
How many compounds have the formula C21H18N2O5?
CompoundList lists 170 compounds with the molecular formula C21H18N2O5, including SB 328437, 9-Methoxycamptothecin, 10-Methoxycamptothecin. 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 C21H18N2O5?
C21H18N2O5 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.