Molecular formula
C21H21N3O2
331 compounds have this formula on CompoundList.
- Molar mass
- 347.42g/mol
- Monoisotopic mass
- 347.1634Da
- Atoms
- 47
- Elements
- 4
- Rings plus double bonds
- 13
The formula C21H21N3O2 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 3 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 × 2172.60%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 216.09%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 312.10%14.007 × 3 = 42.021 g/mol
- O Oxygen × 29.21%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H21N3O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 331 compounds
Glycyl-N-2-naphthalenyl-L-phenylalaninamide
CAS 21438-66-4C21H21N3O2
Coumarin 30
CAS 41044-12-6C21H21N3O2
Cim-0216
CAS 1031496-06-6C21H21N3O2
1-(3-Carbazol-9-yl-2-hydroxy-propyl)-4,6-dimethyl-1H-pyrimidin-2-one
CAS 312615-87-5C21H21N3O2
(5-Methyl-3-phenyl-1,2-oxazol-4-yl)-(4-phenylpiperazin-1-yl)methanone
CAS 303135-76-4C21H21N3O2
4-tert-Butyl-N-(6-pyridin-3-yloxypyridin-3-yl)benzamide
CAS 125125-11-3C21H21N3O2
![1-Methyl-6-phenethyl-4-phenyl-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione chemical structure, C21H21N3O2, CAS 695192-87-1](/s/XSQFNYWMOPXMRG-UHFFFAOYSA-N.svg)
1-Methyl-6-phenethyl-4-phenyl-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione
CAS 695192-87-1C21H21N3O2
Bis(p-aminophenyl)-4-methylenecyclohexa-2,5-dienylideneammonium acetate
CAS 6035-94-5C21H21N3O2
![[4-(4-Methoxyphenyl)piperazin-1-yl]-quinolin-2-ylmethanone chemical structure, C21H21N3O2, CAS 667868-50-0](/s/RWRCIEZMFAGSLD-UHFFFAOYSA-N.svg)
[4-(4-Methoxyphenyl)piperazin-1-yl]-quinolin-2-ylmethanone
CAS 667868-50-0C21H21N3O2
![N-[2-(2,3-Dimethylanilino)-2-oxoethyl]-3-pyrrol-1-ylbenzamide chemical structure, C21H21N3O2, CAS 1031042-83-7](/s/IZOTWPLGKFSDLX-UHFFFAOYSA-N.svg)
N-[2-(2,3-Dimethylanilino)-2-oxoethyl]-3-pyrrol-1-ylbenzamide
CAS 1031042-83-7C21H21N3O2
![N-[2-Keto-2-(p-toluidino)ethyl]-N-methyl-3-pyrrol-1-yl-benzamide chemical structure, C21H21N3O2, CAS 1031034-47-5](/s/LCYBVSOFHBBEEE-UHFFFAOYSA-N.svg)
N-[2-Keto-2-(p-toluidino)ethyl]-N-methyl-3-pyrrol-1-yl-benzamide
CAS 1031034-47-5C21H21N3O2
N-(3-Methylphenyl)-3-(morpholine-4-carbonyl)quinolin-4-amine
CAS 1021262-22-5C21H21N3O2
12,7,5-(Imino(1,1,2)ethanetriyl)benzo(b)phenanthridine, 5,6,6a,7,12,12a-hexahydro-6,13-dimethyl-15-nitro-
CAS 24516-67-4C21H21N3O2
![4-[4-Methyl-6-(4-phenylphenoxy)pyrimidin-2-yl]morpholine chemical structure, C21H21N3O2, CAS 381173-23-5](/s/UOVRXRKDTWDYDK-UHFFFAOYSA-N.svg)
4-[4-Methyl-6-(4-phenylphenoxy)pyrimidin-2-yl]morpholine
CAS 381173-23-5C21H21N3O2
1-(4-Benzylpiperazin-1-yl)-2-(1H-indol-3-yl)ethane-1,2-dione
CAS 96265-41-7C21H21N3O2
4-(3,4-Dihydro-2H-quinoline-1-carbonyl)-2-propylphthalazin-1-one
CAS 727715-45-9C21H21N3O2
![N-Benzyl-12-oxo-6,7,8,9,10,12-hexahydroazepino[2,1-b]quinazoline-3-carboxamide chemical structure, C21H21N3O2, CAS 802924-40-9](/s/SGXVTHAKWLEYME-UHFFFAOYSA-N.svg)
N-Benzyl-12-oxo-6,7,8,9,10,12-hexahydroazepino[2,1-b]quinazoline-3-carboxamide
CAS 802924-40-9C21H21N3O2
![2-[3-(6-Methyl-3,4-dihydro-2H-quinolin-1-yl)-3-oxopropyl]-3H-quinazolin-4-one chemical structure, C21H21N3O2, CAS 870697-50-0](/s/DXTIBESZPYLRRI-UHFFFAOYSA-N.svg)
2-[3-(6-Methyl-3,4-dihydro-2H-quinolin-1-yl)-3-oxopropyl]-3H-quinazolin-4-one
CAS 870697-50-0C21H21N3O2
![N-[3-(5-Phenyl-1,3,4-oxadiazol-2-yl)phenyl]cyclohexanecarboxamide chemical structure, C21H21N3O2, CAS 518022-61-2](/s/WYXNNZKZDWHLFZ-UHFFFAOYSA-N.svg)
N-[3-(5-Phenyl-1,3,4-oxadiazol-2-yl)phenyl]cyclohexanecarboxamide
CAS 518022-61-2C21H21N3O2
![3-Phenyl-N-[5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl]propanamide chemical structure, C21H21N3O2, CAS 851095-92-6](/s/UAAGRYJYIMQKAI-UHFFFAOYSA-N.svg)
3-Phenyl-N-[5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl]propanamide
CAS 851095-92-6C21H21N3O2
![4-[6-(4-Methylphenoxy)-2-phenyl-4-pyrimidinyl]morpholine chemical structure, C21H21N3O2, CAS 339018-78-9](/s/HVRYCWAARFUFCN-UHFFFAOYSA-N.svg)
4-[6-(4-Methylphenoxy)-2-phenyl-4-pyrimidinyl]morpholine
CAS 339018-78-9C21H21N3O2
1-(2-Methyl-1H-indol-3-yl)-2-(4-phenylpiperazin-1-yl)ethane-1,2-dione
CAS 696656-29-8C21H21N3O2
1-(1-Methylindol-3-yl)-2-(4-phenylpiperazin-1-yl)ethane-1,2-dione
CAS 696606-03-8C21H21N3O2
2-(2-Oxo-2-piperidin-1-ylethyl)-4-phenylphthalazin-1-one
CAS 132544-92-4C21H21N3O2
- 3-(4-Isopropoxy-3-methoxyphenyl)-2-(5-methyl-1H-benzimidazol-2-yl)acrylonitrile331971-31-4C21H21N3O2
- 2-(6-Oxo-3-(p-tolyl)pyridazin-1(6H)-yl)-N-phenethylacetamide898220-99-0C21H21N3O2
- H-Phe-Gly-bNA370582-00-6C21H21N3O2
- 2-Methyl-N-(6-methyl-5-oxo-2,4-diphenyl-2,5-dihydropyridazin-3-yl)propanamide896071-03-7C21H21N3O2
- 1-(3,5-Dimethylphenyl)-4-[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]pyrrolidin-2-one942034-56-2C21H21N3O2
- 4-{[(1E)-(3-Allyl-2-hydroxyphenyl)methylene]amino}-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one317335-46-9C21H21N3O2
- 1-(2-(Furan-2-yl)-2-(indolin-1-yl)ethyl)-3-phenylurea898416-02-9C21H21N3O2
- 4-(1H-Indol-3-yl)-N-(4-methoxyphenyl)-3,6-dihydropyridine-1(2H)-carboxamide894193-01-2C21H21N3O2
- 6-(4-(2-(Benzylamino)ethyl)phenoxy)nicotinamide204592-27-8C21H21N3O2
- 1 suppliersUsp7-IN-82009273-60-1C21H21N3O2
- 2-Methyl-4-[4-(piperidine-1-carbonyl)phenyl]phthalazin-1-one702648-87-1C21H21N3O2
- 4-Cyano-1,2,3,3a,4,5-hexahydro-N-(3-methoxyphenyl)pyrrolo[1,2-a]quinoline-4-carboxamide733030-66-5C21H21N3O2
- 1-Benzyl-3-{[2-(1H-indol-3-yl)ethyl]amino}pyrrolidine-2,5-dione1009156-75-5C21H21N3O2
- 9H-Fluoren-9-one O-(3-(3,5-dimethyl-1H-pyrazol-1-yl)-2-hydroxypropyl) oxime1009237-37-9C21H21N3O2
- 6-Naphthalen-1-yl-2-(2-oxo-2-piperidin-1-ylethyl)pyridazin-3-one922861-45-8C21H21N3O2
- 6-(4-((Phenethylamino)methyl)phenoxy)nicotinamide676494-79-4C21H21N3O2
- 4-((E)-((E)-3-(2-Methoxyphenyl)allylidene)amino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one478845-86-2C21H21N3O2
- Isopropyl 2-methyl-4-phenyl-1,4-dihydropyrimido[1,2-a]benzimidazole-3-carboxylate879078-95-2C21H21N3O2
- N-Benzyl-2-{[6-methyl-2-(4-methylphenyl)pyrimidin-4-yl]oxy}acetamide1029790-52-0C21H21N3O2
- N-(2-Ethylphenyl)-2-(4-methyl-6-oxo-2-phenylpyrimidin-1(6H)-yl)acetamide1260924-96-6C21H21N3O2
- 6-((3-(Dimethylamino)propyl)amino)-3-hydroxy-7H-indeno(2,1-c)quinolin-7-one174634-20-9C21H21N3O2
- 1,5-Methano-8H-pyrido[1,2-a][1,5]diazocin-8-one,1,2,3,4,5,6-hexahydro-3-[2-(1H-indol-6-yl)-2-oxoethyl]-904453-27-6C21H21N3O2
- N-[1-(3,4-Dimethylphenyl)-2-oxopyrrolidin-3-yl]-1H-indole-5-carboxamide1775290-48-6C21H21N3O2
- N-[1-(3,5-Dimethylphenyl)-2-oxopyrrolidin-3-yl]-1H-indole-5-carboxamide1775290-57-7C21H21N3O2
- 2-(4-Aminoanilino)-3-piperidin-1-ylnaphthalene-1,4-dione369604-58-0C21H21N3O2
- 4-({[2-(Piperidin-1-yl)phenyl]amino}methylidene)-1,2,3,4-tetrahydroisoquinoline-1,3-dione1008870-07-2C21H21N3O2
- 3-(4-tert-Butylbenzoylamino)-5-(pyridin-4-yl)-(1H)-pyridin-2-one893434-24-7C21H21N3O2
- 2-[4-(4-Methylphenyl)-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[(4-methylphenyl)methyl]acetamide1058226-96-2C21H21N3O2
- 4-Vinylbenzyl 1-(4-ethylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylate1040676-35-4C21H21N3O2
- N-(2-(6-Oxopyridazin-1(6H)-yl)ethyl)-3,3-diphenylpropanamide1021206-31-4C21H21N3O2
- N-(3,3-Diphenylpropyl)-1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxamide1004494-05-6C21H21N3O2
- N-Cyclopentyl-3,4-dihydro-N-methyl-4-oxo-3-phenyl-1-phthalazinecarboxamide1060810-82-3C21H21N3O2
- N-(2-Methyl-4-oxo-3-phenyl-3,4-dihydroquinazolin-6-yl)cyclopentanecarboxamide1105205-91-1C21H21N3O2
- 4-(3-Methylphenyl)-6-(2-phenylethyl)-1H,2H,3H,4H,5H,6H,7H-pyrrolo[3,4-d]pyrimidine-2,5-dione946325-25-3C21H21N3O2
- Darenzepine84629-61-8C21H21N3O2
- N-[(E)-(2-Methoxyphenyl)methylideneamino]-2-propylquinoline-4-carboxamide7466-65-1C21H21N3O2
- 5-Nitro-2-[4-(4-pentylphenyl)phenyl]pyrimidine313505-78-1C21H21N3O2
- N-Hydroxy-5,5-di(1H-indol-3-yl)pentanamide916917-40-3C21H21N3O2
- 9-Phenyl-2-(p-tolyl)hexahydro-1H-pyrazolo[1,2-a]pyrrolo[3,4-c]pyrazole-1,3(2H)-dione473576-93-1C21H21N3O2
- 4-(4-Methylphenyl)-2-(2-oxo-2-pyrrolidin-1-ylethyl)phthalazin-1-one694479-66-8C21H21N3O2
- 2-Naphthalen-2-yloxy-1-(4-pyridin-2-ylpiperazin-1-yl)ethanone503863-95-4C21H21N3O2
- 2-(4-Benzylpiperidin-1-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde850160-60-0C21H21N3O2
- 4-(1-Allyl-1H-benzo[d]imidazol-2-yl)-1-(2-methoxyphenyl)pyrrolidin-2-one874615-39-1C21H21N3O2
- 3-(1H-Indol-1-ylacetyl)-1,2,3,4,5,6-hexahydro-8H-1,5-methanopyrido[1,2-a][1,5]diazocin-8-one1207054-01-0C21H21N3O2
- Butyl 2-{7-methyl-6H-indolo[2,3-b]quinoxalin-6-yl}acetate843622-89-9C21H21N3O2
- 1H-Pyrido(3,4-b)indol-6-ol, 2,3,4,9-tetrahydro-1-((5-methoxy-3-indolyl)methyl)-61326-48-5C21H21N3O2
- 2-Methyl-4-[(4-phenylpiperazino)carbonyl]-1(2H)-isoquinolinone440662-20-4C21H21N3O2
- N-[(4-Methylphenyl)methyl]-2-[3-(4-methylphenyl)-6-oxopyridazin-1-yl]acetamide898221-19-7C21H21N3O2
- N-[4-(Acetylamino)phenyl]-2-isopropyl-4-quinolinecarboxamide868357-45-3C21H21N3O2
- 1'-(1H-1,3-Benzodiazole-5-carbonyl)-3,4-dihydrospiro[1-benzopyran-2,4'-piperidine]1421507-52-9C21H21N3O2
- 3-[(3R)-3-Methyl-2-oxopiperidin-3-yl]-6-(5-methylquinolin-3-yl)-1H-pyridin-2-one1952261-87-8C21H21N3O2
- Ethyl 3-amino-2,4-dicyano-1-phenyl-1,2,6,7,8,8a-hexahydronaphthalene-2-carboxylate77198-36-8C21H21N3O2
- 4-(1-Allyl-1H-benzo[d]imidazol-2-yl)-1-(3-methoxyphenyl)pyrrolidin-2-one578758-78-8C21H21N3O2
- 2-(1H-Indol-3-yl)-N-[2-(5-methoxy-1H-indol-3-yl)ethyl]acetamide292842-53-6C21H21N3O2
- 4,4,6-Trimethyl-5,6-dihydro-1'H,4H-spiro[pyrrolo[3,2,1-ij]quinoline-1,2'-quinazoline]-2,4'(3'H)-dione903446-58-2C21H21N3O2
- 4-(4-Methylphenyl)-6-(2-phenylethyl)-1H,2H,3H,4H,5H,6H,7H-pyrrolo[3,4-d]pyrimidine-2,5-dione940745-91-5C21H21N3O2
- N-(2,3-Dihydro-1H-inden-5-yl)-1-ethyl-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamide741734-16-7C21H21N3O2
- 3-(4-Ethoxyphenyl)-5-(1-methylindol-3-yl)-1H,4H,5H-1,2-diazin-6-one1023533-10-9C21H21N3O2
- RefChem:38171055275-91-7C21H21N3O2
- 4-(Dimethylamino)-N-(3-phenylmethoxypyridin-2-yl)benzamide1024368-25-9C21H21N3O2
- (E)-2-(1H-Benzimidazol-2-yl)-3-(3-ethoxy-4-propan-2-yloxyphenyl)prop-2-enenitrile597546-65-1C21H21N3O2
- (E)-2-(1H-Benzo[d]imidazol-2-yl)-3-(4-butoxy-3-methoxyphenyl)acrylonitrile705268-68-4C21H21N3O2
- 1-Benzyl-3-(piperidine-1-carbonyl)-1,2-dihydro-1,8-naphthyridin-2-one946281-10-3C21H21N3O2
- 2-(Pyridin-2-yl)-N-[1-(tetrahydrofuran-2-yl)ethyl]quinoline-4-carboxamide896647-26-0C21H21N3O2
- N-Benzyl-1-isopropyl-6-oxo-N-phenyl-1,6-dihydropyridazine-3-carboxamide1049538-90-0C21H21N3O2
- 2-(6-Oxo-3-phenylpyridazin-1(6H)-yl)-N-(1-phenylpropan-2-yl)ethanimidic acid55902-03-9C21H21N3O2
- 4-Ethyl-N-methyl-N-(4-((6-methylpyridazin-3-yl)oxy)phenyl)benzamide1207021-00-8C21H21N3O2
- 4-[3-(2-Phenyl-1H-indol-1-yl)propanoyl]piperazin-2-one1219570-38-3C21H21N3O2
- 2-(Benzo[d]isoxazol-3-yl)-N-(3-(2-methyl-1H-indol-1-yl)propyl)acetamide1251706-45-2C21H21N3O2
- N-(2-Methylphenyl)-3-(morpholin-4-ylcarbonyl)quinolin-4-amine1215709-76-4C21H21N3O2
- N-(2-(4-Methyl-6-oxopyrimidin-1(6H)-yl)ethyl)-2,2-diphenylacetamide1421526-04-6C21H21N3O2
- 5-Cyclopropyl-N-phenethyl-N-(pyridin-2-ylmethyl)isoxazole-3-carboxamide1396858-86-8C21H21N3O2
- 2-(2-Amino-5-phenylpyrimidin-4-yl)-5-((3-methylbut-2-en-1-yl)oxy)phenol903188-96-5C21H21N3O2
- 3-(3,6-Dihydro-2H-pyridin-1-ylmethyl)-5,5-diphenylimidazolidine-2,4-dione86254-07-1C21H21N3O2
- 1-[2-Oxo-2-(4-phenylpiperazin-1-yl)ethyl]-1H-indole-3-carbaldehyde592546-81-1C21H21N3O2
- (E)-3-(1-Ethyl-5-methylpyrazol-4-yl)-N-(4-phenoxyphenyl)prop-2-enamide514856-81-6C21H21N3O2
Frequently asked questions
What is the molar mass of C21H21N3O2?
The molar mass of C21H21N3O2 is 347.42 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 347.1634 Da.
How many compounds have the formula C21H21N3O2?
CompoundList lists 331 compounds with the molecular formula C21H21N3O2, including Glycyl-N-2-naphthalenyl-L-phenylalaninamide, Coumarin 30, Cim-0216. 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 C21H21N3O2?
C21H21N3O2 has a degree of unsaturation of 13. 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.