C21H21N3O
153 compounds have this formula on CompoundList.
- Molar mass
- 331.42g/mol
- Monoisotopic mass
- 331.1685Da
- Atoms
- 46
- Elements
- 4
- Rings plus double bonds
- 13
The formula C21H21N3O describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. 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 × 2176.11%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 216.39%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 312.68%14.007 × 3 = 42.021 g/mol
- O Oxygen × 14.83%15.999 × 1 = 15.999 g/mol
Compounds with the formula C21H21N3O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 153 of 153 compounds
![N-([2,4'-Bipyridin]-3-ylmethyl)-4-propylbenzamide chemical structure, C21H21N3O, CAS 2034432-33-0](/s/FBGHCRSLQAMDIZ-UHFFFAOYSA-N.svg)
![N-([2,4'-Bipyridin]-3-ylmethyl)-3-(o-tolyl)propanamide chemical structure, C21H21N3O, CAS 2034432-59-0](/s/IEJAGIKOJVJGKK-UHFFFAOYSA-N.svg)
![N-({[2,3'-Bipyridine]-4-yl}methyl)-4-propylbenzamide chemical structure, C21H21N3O, CAS 1903547-15-8](/s/IKWRBTVDFQWABS-UHFFFAOYSA-N.svg)
![N-([2,4'-Bipyridin]-4-ylmethyl)-2-phenylbutanamide chemical structure, C21H21N3O, CAS 2034578-35-1](/s/QKOIATAACVVZHW-UHFFFAOYSA-N.svg)
![N-({[2,4'-Bipyridine]-4-yl}methyl)-3-(2-methylphenyl)propanamide chemical structure, C21H21N3O, CAS 2034578-70-4](/s/JVNMYNBNFIFNTG-UHFFFAOYSA-N.svg)
![(E)-1-(3-(1H-Benzo[d]imidazol-1-yl)pyrrolidin-1-yl)-2-methyl-3-phenylprop-2-en-1-one chemical structure, C21H21N3O, CAS 2034997-63-0](/s/PODXTSYOFBZONV-DTQAZKPQSA-N.svg)
![4-(3-Phenyl-2-azaspiro[3.5]nonane-2-carbonyl)pyridine-2-carbonitrile chemical structure, C21H21N3O, CAS 1951951-93-1](/s/QMGOSHFZDBXPFD-UHFFFAOYSA-N.svg)
![N-({[3,3'-Bipyridine]-5-yl}methyl)-4-propylbenzamide chemical structure, C21H21N3O, CAS 2191266-72-3](/s/KGGOJBNVDGDKGO-UHFFFAOYSA-N.svg)
![(E)-3-(4-(tert-Butyl)phenyl)-2-(1-methyl-1H-benzo[d]imidazol-2(3H)-ylidene)-3-oxopropanenitrile chemical structure, C21H21N3O, CAS 476279-59-1](/s/BQTGZPNHZMTPIU-MNDPQUGUSA-N.svg)
![1H-Indole, 3-[5-[4-(1,1-dimethylethyl)phenyl]-1,3,4-oxadiazol-2-yl]-1-methyl- chemical structure, C21H21N3O, CAS 606098-04-8](/s/QHYAJKGNCYRJJR-UHFFFAOYSA-N.svg)
![4-[(E)-2-[4-(5-tert-Butyltriazol-1-yl)phenyl]ethenyl]benzaldehyde chemical structure, C21H21N3O, CAS 77530-26-8](/s/ZEUBVMQATGCHLE-SNAWJCMRSA-N.svg)
![N-[2-(1H-Indol-3-yl)ethyl]-2-(2-methyl-1H-indol-3-yl)acetamide chemical structure, C21H21N3O, CAS 929829-12-9](/s/YTGHXTSPLFTESF-UHFFFAOYSA-N.svg)
- N-(1H-Indol-4-yl)-4-(1-methyl-1H-indol-3-yl)butanamide1374544-00-9C21H21N3O
- N-(2-(2-Phenylpyrimidin-5-yl)ethyl)-2-(m-tolyl)acetamide2034603-89-7C21H21N3O
- 5-Amino-2-(dibenzylamino)benzamide1876042-19-1C21H21N3O
- 1-[4-(1,8-Naphthyridin-2-yl)piperidin-1-yl]-2-phenylethan-1-one2640963-08-0C21H21N3O
- (2E)-N-{2-[4-(1-Methyl-1H-pyrazol-5-yl)phenyl]ethyl}-3-phenylprop-2-enamide2640980-66-9C21H21N3O
- 2-Cyano-3-phenyl-N-[4-(piperidin-1-yl)phenyl]prop-2-enamide307536-92-1C21H21N3O
- 2-Cyano-N-cyclohexyl-3-phenyl-N-pyridin-2-ylprop-2-enamideC21H21N3O
- 2-[Methyl(phenyl)amino]-N-[1-(naphthalen-1-yl)ethylidene]ethanehydrazonic acid5791-39-9C21H21N3O
- (1-Benzyl-5-phenyl-1H-pyrazol-4-yl)(pyrrolidin-1-yl)methanone1003751-13-0C21H21N3O
- 5-(Propoxymethyl)-1-(3-(1-pyrrolyl)phenyl)benzimidazole773858-85-8C21H21N3O
- 2-Phenyl-1-[4-(quinolin-2-yl)piperazin-1-yl]ethan-1-one89007-26-1C21H21N3O
- {[1-Benzyl-3-(4-methoxyphenyl)-1H-pyrazol-4-yl]methyl}(prop-2-yn-1-yl)amine1176512-39-2C21H21N3O
- {[1-Benzyl-3-(2-methoxyphenyl)-1H-pyrazol-4-yl]methyl}(prop-2-yn-1-yl)amine1177219-44-1C21H21N3O
- {[1-Benzyl-3-(3-methoxyphenyl)-1H-pyrazol-4-yl]methyl}(prop-2-yn-1-yl)amine1176628-80-0C21H21N3O
- 2-{6-Phenyl-2-azaspiro[3.3]heptan-2-yl}-5H,7H,8H-pyrano[4,3-b]pyridine-3-carbonitrile2380057-97-4C21H21N3O
- 11-(4-Methylquinolin-2-yl)-7,11-diazatricyclo[7.3.1.02,7]trideca-2,4-dien-6-one2741908-27-8C21H21N3O
- 2-(4-{[1-(Cyclopropylmethyl)aziridin-2-yl]methoxy}phenyl)quinoxaline2418705-99-2C21H21N3O
- 2-(3-Methylanilino)-N-(naphthalen-2-ylmethylideneamino)propanamide6724-94-3C21H21N3O
- 2-[3-(Pentyloxy)naphthalen-2-yl]-1H-imidazo[4,5-B]pyridine89574-64-1C21H21N3O
- 1H-Pyrazolo[4,3-c]pyridine,5-acetyl-4,5,6,7-tetrahydro-3-phenyl-1-(phenylmethyl)-87629-04-7C21H21N3O
- 2-{3-[(Pentan-2-yl)oxy]naphthalen-2-yl}-1H-imidazo[4,5-b]pyridine89574-66-3C21H21N3O
- ({4-[Butyl(phenyl)amino]-2-methoxyphenyl}methylidene)propanedinitrile139055-45-1C21H21N3O
- N,N-Bis[2-(pyridin-2-yl)ethyl]benzamide144157-46-0C21H21N3O
- 6-(Benzyloxy)-1,9-dimethyl-9H-carbazole-2,3-diamine832723-97-4C21H21N3O
- 4-(3-Cyano-1H-indol-1-yl)-N-(2-phenylethyl)butanamide923291-75-2C21H21N3O
- 4-Phenyl-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}butan-1-one2742039-50-3C21H21N3O
- 3-(3-Methylphenyl)-1-{6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridin-7-yl}propan-1-one2770598-34-8C21H21N3O
- 7-[2-(2,3-Dihydro-1-benzofuran-5-yl)ethyl]-6H,7H,8H,9H-pyrido[2,3-b]1,6-naphthyridine2770592-58-8C21H21N3O
- 4-[3-(1,2,3,4-Tetrahydroisoquinoline-2-carbonyl)pyrrolidin-1-yl]benzonitrile3054614-46-6C21H21N3O
Frequently asked questions
What is the molar mass of C21H21N3O?
The molar mass of C21H21N3O is 331.42 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 331.1685 Da.
How many compounds have the formula C21H21N3O?
CompoundList lists 153 compounds with the molecular formula C21H21N3O, including 3-(3-(3,4-Dihydroisoquinolin-2(1H)-yl)pyrrolidine-1-carbonyl)benzonitrile, N-([2,4'-Bipyridin]-3-ylmethyl)-4-propylbenzamide, N-([2,4'-Bipyridin]-3-ylmethyl)-3-(o-tolyl)propanamide. 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 C21H21N3O?
C21H21N3O 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.