C21H19N3O2
246 compounds have this formula on CompoundList.
- Molar mass
- 345.40g/mol
- Monoisotopic mass
- 345.1477Da
- Atoms
- 45
- Elements
- 4
- Rings plus double bonds
- 14
The formula C21H19N3O2 describes a molecule made of 21 carbon atoms, 19 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 × 2173.03%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 195.54%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 312.17%14.007 × 3 = 42.021 g/mol
- O Oxygen × 29.26%15.999 × 2 = 31.998 g/mol
Compounds with the formula C21H19N3O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 246 of 246 compounds
![5-[(3,4-Dimethoxyphenyl)methyl]-1-(pyridin-2-yl)imidazo[1,5-a]pyridine chemical structure, C21H19N3O2, CAS 146041-66-9](/s/GWNRUXVVIGKJKP-UHFFFAOYSA-N.svg)
![1-(1-(3-Phenylpropioloyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one chemical structure, C21H19N3O2, CAS 2093709-74-9](/s/BUIIUDKLWZRZQH-UHFFFAOYSA-N.svg)
methyl}-2-methyl-1H-pyrrole-3-carboxamide chemical structure, C21H19N3O2, CAS 2094384-28-6](/s/QRZIZEDSNQNOFV-UHFFFAOYSA-N.svg)
![2-(3-Methoxyphenyl)-5-[(4-methylphenyl)methyl]-4H,5H-pyrazolo[1,5-a]pyrazin-4-one chemical structure, C21H19N3O2, CAS 2321917-38-6](/s/MDIOXFYXDBYDEG-UHFFFAOYSA-N.svg)
![2-(3-Methoxyphenyl)-5-[(3-methylphenyl)methyl]-4H,5H-pyrazolo[1,5-a]pyrazin-4-one chemical structure, C21H19N3O2, CAS 2324607-37-4](/s/LBFCOALHXMZWMB-UHFFFAOYSA-N.svg)
![2-Methoxy-N-{3-[(1E)-2-(3-methylphenyl)diazen-1-yl]phenyl}benzamide chemical structure, C21H19N3O2, CAS 2703792-99-6](/s/FWJYBMCINOWCTQ-UHFFFAOYSA-N.svg)
![Benzeneacetamide, 4-methoxy-N-[4-(2-phenyldiazenyl)phenyl]- chemical structure, C21H19N3O2, CAS 349627-99-2](/s/PBLAKKSSCCQQCR-UHFFFAOYSA-N.svg)
![Acetamide, 2-(3-methylphenoxy)-N-[4-(2-phenyldiazenyl)phenyl]- chemical structure, C21H19N3O2, CAS 349473-99-0](/s/CMVIIQYWWSMHLJ-UHFFFAOYSA-N.svg)
![Acetamide, 2-(2-methylphenoxy)-N-[4-(2-phenyldiazenyl)phenyl]- chemical structure, C21H19N3O2, CAS 349474-39-1](/s/MZTUIPOWEKQBLK-UHFFFAOYSA-N.svg)
![Phenol, 2-ethoxy-4-[[[4-(2-phenyldiazenyl)phenyl]imino]methyl]- chemical structure, C21H19N3O2, CAS 316143-34-7](/s/DWZCACYMFACXDV-UHFFFAOYSA-N.svg)
![Benzeneacetamide, 3-methoxy-N-[4-(2-phenyldiazenyl)phenyl]- chemical structure, C21H19N3O2, CAS 954090-15-4](/s/VFGTXTWHTNZYIZ-UHFFFAOYSA-N.svg)
![2,3-Bis(4-methoxyphenyl)-1H-pyrrolo[2,3-B]pyridin-6-amine chemical structure, C21H19N3O2, CAS 23612-74-0](/s/JTUGTEOPSYZSPA-UHFFFAOYSA-N.svg)
![N-[3-[(1-Oxo-3-phenylpropyl)amino]phenyl]-3-pyridinecarboxamide chemical structure, C21H19N3O2, CAS 940510-53-2](/s/SFGJJNRDVABJSH-UHFFFAOYSA-N.svg)
![tert-Butyl 5-(quinolin-2-yl)-1H-benzo[d]imidazole-1-carboxylate chemical structure, C21H19N3O2, CAS 1246092-02-3](/s/PQSWBNQERATOHW-UHFFFAOYSA-N.svg)
![N-[4-[[3-(3,6-Dihydro-2H-pyran-4-yl)-2-pyridinyl]oxy]phenyl]-2-pyridinamine chemical structure, C21H19N3O2, CAS 1231923-43-5](/s/LKRLWOUBDSBGSW-UHFFFAOYSA-N.svg)
- 1-(3,5-Dioxo-1,2-diphenyl-4-pyrazolidinyl)cyclopentanecarbonitrile14805-94-8C21H19N3O2
- 8-Benzyl-6-(4-methoxyphenyl)-2-methylimidazo[1,2-a]pyrazin-3(7H)-one40040-82-2C21H19N3O2
- 2-[4-(1-Pyrrolidinyl)-5H-[1]benzopyrano[2,3-d]pyrimidin-2-yl]phenol72139-49-2C21H19N3O2
- N,N-Dimethyl-4-[3-oxo-3-(8-quinolinylamino)-1-propen-1-yl]benzamide1217262-13-9C21H19N3O2
- 2-Cyano-N-(2-ethoxyphenyl)-3-(2-methyl-1H-indol-3-yl)prop-2-enamide891542-41-9C21H19N3O2
- N'-((E)-{4-[(4-Methylbenzyl)oxy]phenyl}methylidene)isonicotinohydrazide767320-50-3C21H19N3O2
- 4-[[5-(4-Isocyanato-1-Naphthalenyl)-2-pyridinyl]methyl]morpholine477699-56-2C21H19N3O2
- N-[1-(4-Cyanophenyl)-3-oxo-3-(pyrrolidin-1-yl)prop-1-en-2-yl]benzamide90290-86-1C21H19N3O2
- Benzyl 2-phenyl-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate2052282-79-6C21H19N3O2
- N-[2-(1H-Indol-3-yl)ethyl]-6-methoxyquinoline-4-carboxamide2415534-62-0C21H19N3O2
- N-{2-[4-(1-Methyl-1H-pyrazol-4-yl)phenyl]ethyl}-1-benzofuran-2-carboxamide2548997-13-1C21H19N3O2
- 1-{[1-(9H-Xanthene-9-carbonyl)azetidin-3-yl]methyl}-1H-imidazole2549052-49-3C21H19N3O2
- 2-(3-Methoxyphenyl)-5-[(2-methylphenyl)methyl]-4H,5H-pyrazolo[1,5-a]pyrazin-4-one2326916-66-7C21H19N3O2
- 4-({5-Benzyl-4,6-dioxo-octahydropyrrolo[3,4-c]pyrrol-2-yl}methyl)benzonitrile2415468-95-8C21H19N3O2
- 2-(3-Methoxyphenyl)-5-(2-phenylethyl)-4H,5H-pyrazolo[1,5-a]pyrazin-4-one2325345-32-0C21H19N3O2
- Benzyl N-(3-cyano-4,5-dimethyl-1-phenyl-1H-pyrrol-2-yl)carbamate2680882-56-6C21H19N3O2
- (9H-Fluoren-9-yl)methyl N-[1-(prop-2-en-1-yl)-1H-pyrazol-4-yl]carbamate2770498-76-3C21H19N3O2
- 2-[Bis(4-methoxyphenyl)methyl]-2H-1,2,3-benzotriazole132870-25-8C21H19N3O2
- 1-[Bis(4-methoxyphenyl)methyl]-1H-1,2,3-benzotriazole132870-20-3C21H19N3O2
- 3-[(3,4-Dimethoxyphenyl)methyl]-1-pyridin-2-ylimidazo[1,5-a]pyridine1610690-48-6C21H19N3O2
- 4-Cyano-N-(3-oxo-1-phenyl-3-(pyrrolidin-1-yl)prop-1-en-2-yl)benzamide90290-96-3C21H19N3O2
- N-(1-(4-Cyanophenyl)-3-oxo-3-(pyrrolidin-1-yl)prop-1-en-2-yl)benzamideC21H19N3O2
Frequently asked questions
What is the molar mass of C21H19N3O2?
The molar mass of C21H19N3O2 is 345.40 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 345.1477 Da.
How many compounds have the formula C21H19N3O2?
CompoundList lists 246 compounds with the molecular formula C21H19N3O2, including 5-[(3,4-Dimethoxyphenyl)methyl]-1-(pyridin-2-yl)imidazo[1,5-a]pyridine, N-(1-Methyl-1H-indol-6-yl)-3-(4-oxoquinolin-1(4H)-yl)propanamide, 2-(3-Acetyl-1H-indol-1-yl)-N-(1-methyl-1H-indol-4-yl)acetamide. 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 C21H19N3O2?
C21H19N3O2 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.