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 101 to 170 of 170 compounds
![(Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-((5-(4-methoxyphenyl)isoxazol-3-yl)methyl)acrylamide chemical structure, C21H18N2O5, CAS 953231-84-0](/s/FFIHWFUNVDCJSK-OQFOIZHKSA-N.svg)
(Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-((5-(4-methoxyphenyl)isoxazol-3-yl)methyl)acrylamide
CAS 953231-84-0C21H18N2O5
![Ethyl 2-{[(2-cyclopropyl-1,3-dioxo-2,3-dihydro-1H-isoindol-5-yl)carbonyl]amino}benzoate chemical structure, C21H18N2O5, CAS 1081113-66-7](/s/JKFBPTMUDNBMTC-UHFFFAOYSA-N.svg)
Ethyl 2-{[(2-cyclopropyl-1,3-dioxo-2,3-dihydro-1H-isoindol-5-yl)carbonyl]amino}benzoate
CAS 1081113-66-7C21H18N2O5
![2-[(1S)-1-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,3-oxazole-4-carboxylic acid chemical structure, C21H18N2O5, CAS 1238864-24-8](/s/DOFXPQQIYASFLQ-LBPRGKRZSA-N.svg)
2-[(1S)-1-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,3-oxazole-4-carboxylic acid
CAS 1238864-24-8C21H18N2O5
3-(Allyl-benzyloxycarbonyl-amino)-5-oxazol-2-yl-benzoic acid
CAS 900799-29-3C21H18N2O5
![2-Benzyl 5-methyl 4-oxo-3,4-dihydro-1H-pyrido[3,4-b]indole-2,5(9H)-dicarboxylate chemical structure, C21H18N2O5, CAS 1446261-46-6](/s/VGVOADXIIOSQGG-UHFFFAOYSA-N.svg)
2-Benzyl 5-methyl 4-oxo-3,4-dihydro-1H-pyrido[3,4-b]indole-2,5(9H)-dicarboxylate
CAS 1446261-46-6C21H18N2O5
(2S,3R)-1-(Phenanthrene-3-carbonyl)piperazine-2,3-dicarboxylic acid
C21H18N2O5
3-(1-(9H-Xanthene-9-carbonyl)pyrrolidin-3-yl)oxazolidine-2,4-dione
CAS 2034291-93-3C21H18N2O5
![3-[1-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,2-oxazole-4-carboxylicacid chemical structure, C21H18N2O5, CAS 2090400-37-4](/s/XLFBTSXXLPBQOV-UHFFFAOYSA-N.svg)
3-[1-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,2-oxazole-4-carboxylicacid
CAS 2090400-37-4C21H18N2O5
![rac-(3aR,6aS)-5-{[(9H-fluoren-9-yl)methoxy]carbonyl}-3aH,4H,5H,6H,6aH-pyrrolo[3,4-d][1,2]oxazole-3-carboxylicacid,cis chemical structure, C21H18N2O5, CAS 2648902-02-5](/s/DRPGYQWKFDAHIP-FUHWJXTLSA-N.svg)
rac-(3aR,6aS)-5-{[(9H-fluoren-9-yl)methoxy]carbonyl}-3aH,4H,5H,6H,6aH-pyrrolo[3,4-d][1,2]oxazole-3-carboxylicacid,cis
CAS 2648902-02-5C21H18N2O5
![2-[8-(4-Methylbenzoyl)-9-oxo-2H,3H,6H,9H-[1,4]dioxino[2,3-g]quinolin-6-yl]acetamide chemical structure, C21H18N2O5, CAS 2549044-01-9](/s/KZWCZTUDXCKBNT-UHFFFAOYSA-N.svg)
2-[8-(4-Methylbenzoyl)-9-oxo-2H,3H,6H,9H-[1,4]dioxino[2,3-g]quinolin-6-yl]acetamide
CAS 2549044-01-9C21H18N2O5
Camptothecin impurity 24
CAS 124623-03-6C21H18N2O5
2-(3-(2-(1,3-Dioxoisoindolin-2-yl)ethoxy)propyl)isoindoline-1,3-dione
CAS 91894-62-1C21H18N2O5
![(1R,3R)-2-Acetyl-1-(1,3-benzodioxol-5-yl)-1,3,4,9-tetrahydropyrido[3,4-b]indole-3-carboxylic acid chemical structure, C21H18N2O5, CAS 1598416-07-9](/s/TWFHACFXONLAGI-OXQOHEQNSA-N.svg)
(1R,3R)-2-Acetyl-1-(1,3-benzodioxol-5-yl)-1,3,4,9-tetrahydropyrido[3,4-b]indole-3-carboxylic acid
CAS 1598416-07-9C21H18N2O5
![4-Ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-oxazole-5-carboxylic acid chemical structure, C21H18N2O5, CAS 2059954-29-7](/s/XPEGCTPCRNPREI-UHFFFAOYSA-N.svg)
4-Ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-oxazole-5-carboxylic acid
CAS 2059954-29-7C21H18N2O5
![2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,3-oxazol-4-yl)propanoic acid chemical structure, C21H18N2O5, CAS 2383441-58-3](/s/AGRSQVRRQZTNCT-UHFFFAOYSA-N.svg)
2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,3-oxazol-4-yl)propanoic acid
CAS 2383441-58-3C21H18N2O5
![(S)-4-Ethyl-4-hydroxy-8-methoxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione chemical structure, C21H18N2O5, CAS 70906-25-1](/s/NUCVEPZRPYQXBX-NRFANRHFSA-N.svg)
(S)-4-Ethyl-4-hydroxy-8-methoxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione
CAS 70906-25-1C21H18N2O5
![2,5-Diazaspiro[3.4]octane-2-acetic acid, 1,3,6-trioxo-5-phenyl-, phenylmethyl ester chemical structure, C21H18N2O5, CAS 35359-58-1](/s/WJHNEGDKZUOLOZ-UHFFFAOYSA-N.svg)
2,5-Diazaspiro[3.4]octane-2-acetic acid, 1,3,6-trioxo-5-phenyl-, phenylmethyl ester
CAS 35359-58-1C21H18N2O5
2-(2,6-Dioxo-3-piperidyl)-4-(2-phenylethoxy)isoindoline-1,3-dione
CAS 1061605-45-5C21H18N2O5
4,5-Dimethoxy-2-nitro-N,N-diphenylbenzamide
CAS 61212-78-0C21H18N2O5
![N-[2-(Benzyloxy)-5-methoxy-4-nitrophenyl]benzamide chemical structure, C21H18N2O5, CAS 88380-59-0](/s/JEBGEWFQUKNDIX-UHFFFAOYSA-N.svg)
N-[2-(Benzyloxy)-5-methoxy-4-nitrophenyl]benzamide
CAS 88380-59-0C21H18N2O5
![2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,2-oxazol-5-yl)propanoic acid chemical structure, C21H18N2O5, CAS 2137506-55-7](/s/JTRCQJDWHRPZKW-UHFFFAOYSA-N.svg)
2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,2-oxazol-5-yl)propanoic acid
CAS 2137506-55-7C21H18N2O5
![2-[4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]acetic acid chemical structure, C21H18N2O5, CAS 2171981-76-1](/s/SHWGVLXTHBKAFE-UHFFFAOYSA-N.svg)
2-[4-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynamido]acetic acid
CAS 2171981-76-1C21H18N2O5
![4-[2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)acetamido]but-2-ynoic acid chemical structure, C21H18N2O5, CAS 2172386-20-6](/s/IHTISNLZRHFMEP-UHFFFAOYSA-N.svg)
4-[2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)acetamido]but-2-ynoic acid
CAS 2172386-20-6C21H18N2O5
1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-benzoyl-2-methylpyrrolidine-2-carboxylate
CAS 2248302-25-0C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl (2S)-3-methyl-2-(1-oxo-2,3-dihydro-1H-isoindol-2-yl)butanoate2248185-21-7C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(piperidine-1-carbonyl)benzoate2248370-31-0C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(3,5-dimethylphenyl)-2-oxopyrrolidine-3-carboxylate2248341-06-0C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(3,4-dimethylphenyl)-5-oxopyrrolidine-3-carboxylate2248390-22-7C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-[(2-oxopiperidin-1-yl)methyl]benzoate2248320-69-4C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-(piperidine-1-carbonyl)benzoate2248362-57-2C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-methyl-6-oxo-2-phenylpiperidine-3-carboxylate2248314-07-8C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-{8-oxa-3-azabicyclo[3.2.1]octan-3-yl}benzoate2248362-05-0C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(5-propoxy-1H-indol-3-yl)acetate2248356-88-7C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-benzoylpiperidine-2-carboxylate2248256-72-4C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2-acetyl-1,2,3,4-tetrahydroisoquinolin-1-yl)acetate2248306-60-5C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(2-ethylphenyl)-5-oxopyrrolidine-3-carboxylate2248294-57-5C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-oxo-1-(1-phenylethyl)pyrrolidine-3-carboxylate2248351-93-9C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-[(4-methylphenyl)methyl]-5-oxopyrrolidine-3-carboxylate2248282-37-1C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(4-ethylphenyl)-5-oxopyrrolidine-3-carboxylate2248384-13-4C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-benzoylpiperidine-3-carboxylate2248333-62-0C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl (2R)-3-methyl-2-(1-oxo-2,3-dihydro-1H-isoindol-2-yl)butanoate2248186-47-0C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(2,3-dimethylphenyl)-5-oxopyrrolidine-3-carboxylate2248403-94-1C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl (2R)-1-(3-methylbenzoyl)pyrrolidine-2-carboxylate2248171-63-1C21H18N2O5
- 5-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]-4-methyl-1,3-oxazole-2-carboxylic acid2137692-17-0C21H18N2O5
- 2-Ethyl-5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-oxazole-4-carboxylic acid2580179-82-2C21H18N2O5
- 5-[1-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,2-oxazole-3-carboxylic acid2352922-86-0C21H18N2O5
- 2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}(methyl)amino)-4-methyl-1,3-oxazole-5-carboxylic acid2382907-16-4C21H18N2O5
- 2-[({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)methyl]-5-methyl-1,3-oxazole-4-carboxylic acid827616-03-5C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(3-ethylphenyl)-5-oxopyrrolidine-3-carboxylate2248413-37-6C21H18N2O5
- Benzyl N-{[4-(4-nitrophenoxy)phenyl]methyl}carbamate2680787-52-2C21H18N2O5
- Benzyl N-[3-(3-methylphenoxy)-5-nitrophenyl]carbamate2680716-25-8C21H18N2O5
- Benzyl N-[4-(benzyloxy)-2-nitrophenyl]carbamate2680711-78-6C21H18N2O5
- Benzyl N-[3-(2-methylphenoxy)-5-nitrophenyl]carbamate2680733-80-4C21H18N2O5
- Benzyl N-{4-[hydroxy(phenyl)methyl]-2-nitrophenyl}carbamate2680779-27-3C21H18N2O5
- Benzyl N-[3-(4-methylphenoxy)-5-nitrophenyl]carbamate2680691-69-2C21H18N2O5
- 5-({[(9H-Fluoren-9-yl)methoxy]carbonyl}(methyl)amino)-3-methyl-1,2-oxazole-4-carboxylic acid2680663-87-8C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 6-butoxy-1H-indole-2-carboxylate2248414-44-8C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2-oxopiperidin-1-yl)-2-phenylacetate2248266-75-1C21H18N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-benzyl-1-methyl-2-oxopyrrolidine-3-carboxylate2248397-13-7C21H18N2O5
- (3S)-3-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,3-oxazol-5-yl)propanoic acid2349925-34-2C21H18N2O5
- 3-[5-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-1,2-oxazol-3-yl]propanoic acid2913412-75-4C21H18N2O5
- Methyl 3-[[(2-nitro-5-phenoxyphenyl)amino]methyl]benzoate1174410-11-7C21H18N2O5
- Ethyl 3-[3-(1,3-benzodioxol-5-yl)prop-2-enoylamino]-1H-indole-2-carboxylateC21H18N2O5
- Cyclopropanecarboxylic acid, 2-[2,5-dioxo-4-(9H-xanthen-9-ylmethyl)-4-imidazolidinyl]-, (1R,2R)-rel-203208-76-8C21H18N2O5
- 4-[[(Z)-2-Cyano-3-(5-methoxy-2-methyl-2,3-dihydro-1-benzofuran-7-yl)prop-2-enoyl]amino]benzoic acid1252560-97-6C21H18N2O5
- (1S,2S)-2-((S)-4-((9H-Xanthen-9-yl)methyl)-2,5-dioxoimidazolidin-4-yl)cyclopropanecarboxylic acid201851-11-8C21H18N2O5
- 2-[2,5-Dioxo-4-(9H-xanthen-9-ylmethyl)imidazolidin-4-yl]cyclopropane-1-carboxylic acidC21H18N2O5
- (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(oxazol-5-yl)propanoic acid2349336-63-4C21H18N2O5
- (2R)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-(1,3-oxazol-2-yl)propanoic acid3048545-00-9C21H18N2O5
- 2-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)ethyl]-1,3-oxazole-4-carboxylic acid2354331-48-7C21H18N2O5
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 (Z)-3-(Benzo[d][1,3]dioxol-5-yl)-N-((5-(4-methoxyphenyl)isoxazol-3-yl)methyl)acrylamide, Ethyl 2-{[(2-cyclopropyl-1,3-dioxo-2,3-dihydro-1H-isoindol-5-yl)carbonyl]amino}benzoate, 2-[(1S)-1-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,3-oxazole-4-carboxylic acid. 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.