Molecular formula
C21H16N2O2
142 compounds have this formula on CompoundList.
- Molar mass
- 328.37g/mol
- Monoisotopic mass
- 328.1212Da
- Atoms
- 41
- Elements
- 4
- Rings plus double bonds
- 15
The formula C21H16N2O2 describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 2 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 × 2176.81%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 164.91%1.008 × 16 = 16.128 g/mol
- N Nitrogen × 28.53%14.007 × 2 = 28.014 g/mol
- O Oxygen × 29.74%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H16N2O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 142 compounds
2-Amino-4-(3-methoxyphenyl)-4H-benzo(h)chromene-3-carbonitrile
CAS 149550-57-2C21H16N2O2
N-(Furan-2-ylmethyl)-2-phenylquinoline-4-carboxamide
CAS 5877-15-6C21H16N2O2
4(3H)-Quinazolinone, 3-(4-methoxyphenyl)-2-phenyl-
CAS 37856-17-0C21H16N2O2
2-Benzyl-3-(3-hydroxyphenyl)quinazolin-4-one
CAS 201293-01-8C21H16N2O2
3-(2-Methoxyphenyl)-2-phenyl-4(3H)-quinazolinone
CAS 37856-18-1C21H16N2O2
4(3H)-Quinazolinone, 3-(4-hydroxyphenyl)-2-(phenylmethyl)-
CAS 76253-94-6C21H16N2O2
2-Amino-4-(4-methoxyphenyl)-4H-benzo(h)chromene-3-carbonitrile
CAS 119825-06-8C21H16N2O2
2-Benzyl-3-(2-hydroxyphenyl)quinazolin-4-one
CAS 421566-55-4C21H16N2O2
3-(6-Methoxynaphthalen-2-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde
CAS 957354-89-1C21H16N2O2
![(1-Hydroxy-2-naphthyl)[1-(4-methylphenyl)-1H-pyrazol-4-yl]methanone chemical structure, C21H16N2O2, CAS 955976-63-3](/s/VOUFSVWPQYVGIH-UHFFFAOYSA-N.svg)
(1-Hydroxy-2-naphthyl)[1-(4-methylphenyl)-1H-pyrazol-4-yl]methanone
CAS 955976-63-3C21H16N2O2
4-Ethyl-N-(2-nitro-9-fluorenylidene)aniline
CAS 102241-35-0C21H16N2O2
4-(2-Hydroxy-5-methylphenyl)-2-phenyl-1(2H)-phthalazinone
CAS 401606-94-8C21H16N2O2
p-(9-Acridinylamino)benzoic acid methyl ester hydrochloride
CAS 51207-87-5C21H16N2O2
Methyl 2-phenyl-5-(2-pyridinyl)-1-indolizinecarboxylate
CAS 853334-05-1C21H16N2O2
![2-[(E)-2-(Furan-2-yl)ethenyl]-3-(3-methylphenyl)quinazolin-4-one chemical structure, C21H16N2O2, CAS 5922-10-1](/s/BVPNDFWJALSJJZ-VAWYXSNFSA-N.svg)
2-[(E)-2-(Furan-2-yl)ethenyl]-3-(3-methylphenyl)quinazolin-4-one
CAS 5922-10-1C21H16N2O2
Acetic acid, p-(9-acridinylamino)phenyl-
CAS 64895-01-8C21H16N2O2
![N-[3-(5-Methyl-1,3-benzoxazol-2-yl)phenyl]benzamide chemical structure, C21H16N2O2, CAS 5250-12-4](/s/MNJFIDGLCSVEEX-UHFFFAOYSA-N.svg)
N-[3-(5-Methyl-1,3-benzoxazol-2-yl)phenyl]benzamide
CAS 5250-12-4C21H16N2O2
![N-[3-(1,3-Benzoxazol-2-yl)phenyl]-4-methylbenzamide chemical structure, C21H16N2O2, CAS 442524-48-3](/s/GKOMOXGRXBMEET-UHFFFAOYSA-N.svg)
N-[3-(1,3-Benzoxazol-2-yl)phenyl]-4-methylbenzamide
CAS 442524-48-3C21H16N2O2
![N-[3-(1,3-Benzoxazol-2-yl)phenyl]-2-phenylacetamide chemical structure, C21H16N2O2, CAS 312594-91-5](/s/YJOYLHFZAHHYAL-UHFFFAOYSA-N.svg)
N-[3-(1,3-Benzoxazol-2-yl)phenyl]-2-phenylacetamide
CAS 312594-91-5C21H16N2O2
![N-[4-(1,3-Benzoxazol-2-yl)phenyl]-2-methylbenzamide chemical structure, C21H16N2O2, CAS 404863-89-4](/s/NYVNJMZVVTUUFQ-UHFFFAOYSA-N.svg)
N-[4-(1,3-Benzoxazol-2-yl)phenyl]-2-methylbenzamide
CAS 404863-89-4C21H16N2O2
5-Hydroxy-3-methyl-1-phenylpyrazol-4-yl 2-naphthyl ketone
CAS 418757-25-2C21H16N2O2
Benzoic acid, 4-(9-acridinylamino)-3-methyl-
CAS 64894-84-4C21H16N2O2
4-Methyl-N-(2-phenyl-1,3-benzoxazol-5-yl)benzamide
CAS 301646-89-9C21H16N2O2
(Z)-2-Cyano-3-(4-methoxyphenyl)-N-(naphthalen-1-yl)acrylamide
CAS 320367-80-4C21H16N2O2
- N-(2-Benzyl-1,3-benzoxazol-5-yl)benzamide590393-83-2C21H16N2O2
- 1 suppliers9,10-Anthracenedione, 1-(methylamino)-4-(phenylamino)-3179-96-2C21H16N2O2
- 3-[(6-Methoxypyridin-3-yl)amino]-2-phenylinden-1-one946385-83-7C21H16N2O2
- 2-(9-Oxo-9,10-dihydroacridin-10-yl)-N-phenylacetamide331850-78-3C21H16N2O2
- 1-Benzyl-4-naphthalen-1-ylpyrazine-2,3-dione898453-93-5C21H16N2O2
- 1,3,5-Triphenylimidazolidine-2,4-dione61505-60-0C21H16N2O2
- 9,10-Anthracenedione, 1-amino-4-[(4-methylphenyl)amino]-39774-73-7C21H16N2O2
- 3-Methyl-5-(2-naphthalenyloxy)-1-phenyl-1H-pyrazole-4-carboxaldehyde30241-49-7C21H16N2O2
- Benzamide,N-[4-(2,3-dihydro-1-oxo-1H-isoindol-4-yl)phenyl]-765949-07-3C21H16N2O2
- 3,5-Pyrazolidinedione, 1,2,4-triphenyl-26485-72-3C21H16N2O2
- N-[4-(Pyridin-4-ylmethyl)phenyl]-1-benzofuran-2-carboxamide332042-63-4C21H16N2O2
- 3-Amino-1-(3-methoxyphenyl)-1H-benzo[f]chromene-2-carbonitrile332056-10-7C21H16N2O2
- 2-[(E)-2-(Furan-2-yl)ethenyl]-3-(4-methylphenyl)quinazolin-4-one116990-38-6C21H16N2O2
- 1H-Indole-7-carboxamide, 2,3-dihydro-2-oxo-3,3-diphenyl-78033-98-4C21H16N2O2
- 1-(4-Methylphenyl)-N-(7-nitro-9H-fluoren-2-yl)methanimine322413-05-8C21H16N2O2
- N-[4-(1,3-Benzoxazol-2-yl)phenyl]-3-methylbenzamide313549-26-7C21H16N2O2
- 2-[(E)-2-(Furan-2-yl)ethenyl]-3-(2-methylphenyl)quinazolin-4-one1772-82-3C21H16N2O2
- 3-Benzyl-2-[(E)-2-(furan-2-yl)ethenyl]quinazolin-4-one56478-90-1C21H16N2O2
- Ethyl 5,11-dihydroindolo[3,2-b]carbazole-6-carboxylate229020-86-4C21H16N2O2
- 3-((4-Phenoxyphenyl)imino)-1-methylindolin-2-one338414-72-5C21H16N2O2
- 2-(1H-Indol-3-yl)-N-(naphthalen-1-ylmethyl)-2-oxoacetamide682759-22-4C21H16N2O2
- 1,3-Diphenyl-2-[(E)-phenyldiazenyl]propane-1,3-dione69147-39-3C21H16N2O2
- N-[4-(1,3-Benzoxazol-2-yl)phenyl]-4-methylbenzamide432008-16-7C21H16N2O2
- 5-(Biphenyl-4-yl)-3-(4-methoxyphenyl)-1,2,4-oxadiazole5688-71-1C21H16N2O2
- (3Z)-3-[(2-Methylphenyl)imino]-3H-benzo[f]chromene-2-carboxamide313234-13-8C21H16N2O2
- Phenol, 4,4'-(2-phenyl-1H-imidazole-4,5-diyl)bis-121430-57-7C21H16N2O2
- Butyl 9-(dicyanomethylidene)-9H-fluorene-4-carboxylate93376-18-2C21H16N2O2
- 2-(((2-Methyl-4-quinolyl)amino)ethylidene)indane-1,3-dione1020252-01-0C21H16N2O2
- 2-[(4-Phenylanilino)methyl]isoindole-1,3-dione6629-43-2C21H16N2O2
- 1,5,5-Triphenyl-2,4-imidazolidinedione52460-88-5C21H16N2O2
- (2E)-2-Cyano-N-(2-methylphenyl)-3-(5-phenylfuran-2-yl)prop-2-enamide301177-10-6C21H16N2O2
- 3-Methoxy-N-(5-quinolinyl)-2-naphthamide878966-45-1C21H16N2O2
- 3-[(2-Methoxyphenyl)imino]-1-phenyl-1,3-dihydro-2H-indol-2-one303149-10-2C21H16N2O2
- (5Z)-3-Benzyl-5-(furan-2-ylmethylidene)-2-phenylimidazol-4-one1451734-54-5C21H16N2O2
- (3Z)-3-[(3-Methylphenyl)imino]-3H-benzo[f]chromene-2-carboxamide313234-18-3C21H16N2O2
- RefChem:3818172654-34-4C21H16N2O2
- (2E)-2-Cyano-3-(3-methoxyphenyl)-N-1-naphthylacrylamide359027-58-0C21H16N2O2
- N-(4-Methylphenyl)-3-phenyl-2,1-benzoxazole-5-carboxamide867274-14-4C21H16N2O2
- 2-(Naphthalen-1-yl)-N-(3-phenyl-1,2-oxazol-5-yl)acetamide901659-67-4C21H16N2O2
- 3-Methyl-4-(1-naphthoyl)-1-phenyl-5(4H)-pyrazolone141704-27-0C21H16N2O2
- 2-((8-Quinolylamino)propylidene)indane-1,3-dione1024411-34-4C21H16N2O2
- (E)-2-Cyano-3-(5-phenylfuran-2-yl)-N-(m-tolyl)acrylamide301177-15-1C21H16N2O2
- 6-(Allylamino)-2-phenyl-1H-benzo[de]isoquinoline-1,3(2H)-dione288156-39-8C21H16N2O2
- N-(3-Methylphenyl)-3-phenyl-2,1-benzoxazole-5-carboxamide887349-26-0C21H16N2O2
- Hydroperoxide, 2,4,5-triphenyl-4H-imidazol-4-yl1729-09-5C21H16N2O2
- 1a,9b-Dihydro-1-((4-nitrophenyl)methyl)-1H-phenanthro(9,10-b)-azirine126371-00-4C21H16N2O2
- 2-Cyano-3-{2-[(naphthalen-1-yl)methoxy]phenyl}prop-2-enamide359787-57-8C21H16N2O2
- 4,5-Diphenyl-2-(2,4-dihydroxyphenyl)-1H-imidazole488787-64-0C21H16N2O2
- 2-Amino-4-(3-methoxyphenyl)-4H-benzo[g]chromene-3-carbonitrile861208-29-9C21H16N2O2
- (2E)-2-Cyano-3-(2-methoxyphenyl)-N-1-naphthylacrylamide341928-31-2C21H16N2O2
- N-(2-Oxoindolin-5-yl)-[1,1'-biphenyl]-4-carboxamide921545-81-5C21H16N2O2
- 2-Naphthalen-1-yloxy-N-quinolin-8-ylacetamide1022522-79-7C21H16N2O2
- (E)-2-Cyano-3-(4-methoxyphenyl)-N-naphthalen-1-ylprop-2-enamide1321862-48-9C21H16N2O2
- 2-(2-Aminophenyl)-4-hydroxy-3-phenylisoquinolin-1(2H)-one81252-70-2C21H16N2O2
- N-{[1,1'-Biphenyl]-2-yl}-5-methylfuro[3,2-b]pyridine-2-carboxamide941881-34-1C21H16N2O2
- [3-(Naphthalen-2-yl)-1-phenyl-1H-pyrazol-4-yl]acetic acid70598-40-2C21H16N2O2
- 2-[(1-Phenylpyrazol-3-yl)methoxy]naphthalene-1-carbaldehyde1375234-59-5C21H16N2O2
- 4-(Diphenylamino)-2-methyl-1H-isoindole-1,3(2H)-dione6136-55-6C21H16N2O2
- N-((6-(Furan-3-yl)pyridin-3-yl)methyl)-1-naphthamide2034387-66-9C21H16N2O2
- N-((5-(Furan-2-yl)pyridin-3-yl)methyl)-1-naphthamide2034612-62-7C21H16N2O2
- N-((5-(Furan-3-yl)pyridin-3-yl)methyl)-1-naphthamide2034314-15-1C21H16N2O2
- 1-Methyl-2-oxo-N-(2-phenylphenyl)indol-3-imine oxide58418-21-6C21H16N2O2
- 2-Hydroxy-N-(2-(1H-indol-2-yl)-phenyl)-benzamide677297-14-2C21H16N2O2
- Formamide, N-(2,3-dihydro-2-oxo-3,3-diphenyl-1H-indol-1-yl)-61458-27-3C21H16N2O2
- 1-Amino-4-(3-methylanilino)anthracene-9,10-dione60683-36-5C21H16N2O2
- 3-Benzyl-1-oxo-2-phenylquinoxalin-1-ium-4(1H)-olate53326-80-0C21H16N2O2
- 4-Hydroxy-N-(2-(1H-indol-2-yl)-phenyl)-benzamide677297-12-0C21H16N2O2
- (4-Oxo-3-phenyl-4lambda~5~-quinoxalin-2-yl)(phenyl)methanol53326-82-2C21H16N2O2
- N-[Cyano(phenyl)methyl]-4-phenoxybenzamide1090944-00-5C21H16N2O2
- 2-[4-(Hydroxymethyl)phenyl]-3-phenyl-1,6-naphthyridin-5(6H)-one893423-86-4C21H16N2O2
- 2-[4-(Hydroxymethyl)phenyl]-3-phenyl-1,7-naphthyridin-8(7H)-one893424-06-1C21H16N2O2
- 6-Hydroxy-3-methyl-5-(naphthalen-1-yl)-1-phenylpyridazin-4(1H)-one89314-14-7C21H16N2O2
- N-(4-((2-(Hydroxymethyl)pyridin-4-yl)ethynyl)phenyl)benzamide2111830-05-6C21H16N2O2
- 1,4-Diphenyl-2-(2-pyridinylamino)-2-butene-1,4-dione297768-96-8C21H16N2O2
- 2-Cyano-3-{4-[(naphthalen-1-yl)methoxy]phenyl}prop-2-enamide357229-21-1C21H16N2O2
- N-Phenyl-3-(phenylcarbamoyl)isoindolin-1-one197523-68-5C21H16N2O2
Frequently asked questions
What is the molar mass of C21H16N2O2?
The molar mass of C21H16N2O2 is 328.37 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 328.1212 Da.
How many compounds have the formula C21H16N2O2?
CompoundList lists 142 compounds with the molecular formula C21H16N2O2, including 2-Amino-4-(3-methoxyphenyl)-4H-benzo(h)chromene-3-carbonitrile, N-(Furan-2-ylmethyl)-2-phenylquinoline-4-carboxamide, 4(3H)-Quinazolinone, 3-(4-methoxyphenyl)-2-phenyl-. 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 C21H16N2O2?
C21H16N2O2 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.