Molecular formula
C21H18ClN5O2
67 compounds have this formula on CompoundList.
- Molar mass
- 407.86g/mol
- Monoisotopic mass
- 407.1149Da
- Atoms
- 47
- Elements
- 5
- Rings plus double bonds
- 15
The formula C21H18ClN5O2 describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 1 chlorine atom, 5 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 × 2161.84%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 184.45%1.008 × 18 = 18.144 g/mol
- Cl Chlorine × 18.69%35.45 × 1 = 35.450 g/mol
- N Nitrogen × 517.17%14.007 × 5 = 70.035 g/mol
- O Oxygen × 27.85%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H18ClN5O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 67 of 67 compounds
![N-(3-Chlorophenyl)-2-[1-(3,4-dimethylphenyl)-4-oxo-5-pyrazolo[3,4-d]pyrimidinyl]acetamide chemical structure, C21H18ClN5O2, CAS 852451-35-5](/s/ZCWDKCQSVXFIKL-UHFFFAOYSA-N.svg)
N-(3-Chlorophenyl)-2-[1-(3,4-dimethylphenyl)-4-oxo-5-pyrazolo[3,4-d]pyrimidinyl]acetamide
CAS 852451-35-5C21H18ClN5O2
![2-(1-(4-Chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-phenethylacetamide chemical structure, C21H18ClN5O2, CAS 852441-33-9](/s/BAXLURLFBXNESF-UHFFFAOYSA-N.svg)
2-(1-(4-Chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-phenethylacetamide
CAS 852441-33-9C21H18ClN5O2
![3-[(2-Chlorophenyl)methyl]-1-methyl-8-phenyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione chemical structure, C21H18ClN5O2, CAS 872838-82-9](/s/NBLLCEQLGPTRHN-UHFFFAOYSA-N.svg)
3-[(2-Chlorophenyl)methyl]-1-methyl-8-phenyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione
CAS 872838-82-9C21H18ClN5O2
Benzoic acid, 4-((2-chloro-9-(phenylmethyl)-9H-purin-6-yl)amino)-, ethyl ester
CAS 125802-50-8C21H18ClN5O2
![[3-[(9-Benzyl-2-chloro-purin-6-yl)amino]phenyl] propanoate chemical structure, C21H18ClN5O2, CAS 125802-60-0](/s/LLOOKIGRINYNMN-UHFFFAOYSA-N.svg)
[3-[(9-Benzyl-2-chloro-purin-6-yl)amino]phenyl] propanoate
CAS 125802-60-0C21H18ClN5O2
![2-(2-Chlorophenyl)-N-[2-({3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)ethyl]acetamide chemical structure, C21H18ClN5O2, CAS 1060299-33-3](/s/FXIRJKJNTJSWHR-UHFFFAOYSA-N.svg)
2-(2-Chlorophenyl)-N-[2-({3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)ethyl]acetamide
CAS 1060299-33-3C21H18ClN5O2
![N-(3-Chloro-4-methylphenyl)-2-(oxo-8-(p-tolyl)pyrazolo[1,5-d][1,2,4]triazin-1-yl)acetamide chemical structure, C21H18ClN5O2, CAS 1021020-57-4](/s/MHRHHALPCAYVJC-UHFFFAOYSA-N.svg)
N-(3-Chloro-4-methylphenyl)-2-(oxo-8-(p-tolyl)pyrazolo[1,5-d][1,2,4]triazin-1-yl)acetamide
CAS 1021020-57-4C21H18ClN5O2
![2-(4-Chlorophenyl)-N-(2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)acetamide chemical structure, C21H18ClN5O2, CAS 1021098-41-8](/s/GAMXYMKFQLCGCA-UHFFFAOYSA-N.svg)
2-(4-Chlorophenyl)-N-(2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)acetamide
CAS 1021098-41-8C21H18ClN5O2
![N-(2-((3-(2-Chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-2-methylbenzamide chemical structure, C21H18ClN5O2, CAS 1021031-09-3](/s/JVOLNWDWHZYCIY-UHFFFAOYSA-N.svg)
N-(2-((3-(2-Chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-2-methylbenzamide
CAS 1021031-09-3C21H18ClN5O2
![N-Cyclopropyl-6-{[4-({[4-(propionylamino)phenyl]sulfonyl}amino)phenyl]thio}nicotinamide chemical structure, C21H18ClN5O2, CAS 1251608-80-6](/s/UVVRYHFWDHAMKG-UHFFFAOYSA-N.svg)
N-Cyclopropyl-6-{[4-({[4-(propionylamino)phenyl]sulfonyl}amino)phenyl]thio}nicotinamide
CAS 1251608-80-6C21H18ClN5O2
![2-Benzyl-6-(3-chlorophenyl)-4-methyl-7,8-dihydropurino[7,8-a]imidazole-1,3-dione chemical structure, C21H18ClN5O2, CAS 893978-82-0](/s/NUZHLTYWSCMXSC-UHFFFAOYSA-N.svg)
2-Benzyl-6-(3-chlorophenyl)-4-methyl-7,8-dihydropurino[7,8-a]imidazole-1,3-dione
CAS 893978-82-0C21H18ClN5O2
![3-Benzyl-8-(4-chlorophenyl)-1-methyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione chemical structure, C21H18ClN5O2, CAS 872839-02-6](/s/VBQXYEIWZMDOHT-UHFFFAOYSA-N.svg)
3-Benzyl-8-(4-chlorophenyl)-1-methyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione
CAS 872839-02-6C21H18ClN5O2
![2-[1-(3-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(2,5-dimethylphenyl)acetamide chemical structure, C21H18ClN5O2, CAS 887457-73-0](/s/SQSPRNNZVLXWPG-UHFFFAOYSA-N.svg)
2-[1-(3-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(2,5-dimethylphenyl)acetamide
CAS 887457-73-0C21H18ClN5O2
![3-[(4-Chlorophenyl)methyl]-1-methyl-8-phenyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione chemical structure, C21H18ClN5O2, CAS 872838-79-4](/s/SDMAEYXHBIRQAA-UHFFFAOYSA-N.svg)
3-[(4-Chlorophenyl)methyl]-1-methyl-8-phenyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione
CAS 872838-79-4C21H18ClN5O2
![3-[(3-Chlorophenyl)methyl]-1-methyl-8-phenyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione chemical structure, C21H18ClN5O2, CAS 872838-86-3](/s/QUIFTWQDIYZABH-UHFFFAOYSA-N.svg)
3-[(3-Chlorophenyl)methyl]-1-methyl-8-phenyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione
CAS 872838-86-3C21H18ClN5O2
![2-[1-(4-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(2,3-dimethylphenyl)acetamide chemical structure, C21H18ClN5O2, CAS 852440-76-7](/s/XOCHXDQPZSLBIE-UHFFFAOYSA-N.svg)
2-[1-(4-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(2,3-dimethylphenyl)acetamide
CAS 852440-76-7C21H18ClN5O2
![2-[1-(3-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(2,3-dimethylphenyl)acetamide chemical structure, C21H18ClN5O2, CAS 887457-69-4](/s/YBEUQLFLEMLICR-UHFFFAOYSA-N.svg)
2-[1-(3-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(2,3-dimethylphenyl)acetamide
CAS 887457-69-4C21H18ClN5O2
![N-(3-Chlorophenyl)-2-(6-(3,4-dimethylphenyl)-3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)acetamide chemical structure, C21H18ClN5O2, CAS 1251630-97-3](/s/MPDYGDWBJKRAEK-UHFFFAOYSA-N.svg)
N-(3-Chlorophenyl)-2-(6-(3,4-dimethylphenyl)-3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)acetamide
CAS 1251630-97-3C21H18ClN5O2
N-(2-Chlorobenzyl)-1-(4-(5-ethyl-1,2,4-oxadiazol-3-yl)phenyl)-1H-pyrazole-3-carboxamide
CAS 1251608-28-2C21H18ClN5O2
![4-[5-[2-(6-Amino-3-pyridinyl)ethynyl]-6-ethyl-4-pyrimidinyl]-2-chloro-N-hydroxy-N-methylbenzamide chemical structure, C21H18ClN5O2, CAS 1321608-31-4](/s/HBATYDBTFKDWAU-UHFFFAOYSA-N.svg)
4-[5-[2-(6-Amino-3-pyridinyl)ethynyl]-6-ethyl-4-pyrimidinyl]-2-chloro-N-hydroxy-N-methylbenzamide
CAS 1321608-31-4C21H18ClN5O2
![9-(3-Chlorophenyl)-6-(4-methoxyphenyl)-5,6,7,9-tetrahydrotetrazolo[5,1-b]quinazolin-8(4H)-one chemical structure, C21H18ClN5O2, CAS 923673-76-1](/s/LHOCMOYRIONMMB-UHFFFAOYSA-N.svg)
9-(3-Chlorophenyl)-6-(4-methoxyphenyl)-5,6,7,9-tetrahydrotetrazolo[5,1-b]quinazolin-8(4H)-one
CAS 923673-76-1C21H18ClN5O2
![8-(4-Chlorophenyl)-N-(4-methoxyphenyl)-4,7-dimethylpyrazolo[5,1-c][1,2,4]triazine-3-carboxamide chemical structure, C21H18ClN5O2, CAS 879615-28-8](/s/GROVYVPSKCBGBJ-UHFFFAOYSA-N.svg)
8-(4-Chlorophenyl)-N-(4-methoxyphenyl)-4,7-dimethylpyrazolo[5,1-c][1,2,4]triazine-3-carboxamide
CAS 879615-28-8C21H18ClN5O2
![N-(4-Chlorobenzyl)-3-(4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)propanamide chemical structure, C21H18ClN5O2, CAS 946234-82-8](/s/FUEROFTYMBUTLM-UHFFFAOYSA-N.svg)
N-(4-Chlorobenzyl)-3-(4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)propanamide
CAS 946234-82-8C21H18ClN5O2
![N-(3-Chloro-4-methylphenyl)-3-(4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)propanamide chemical structure, C21H18ClN5O2, CAS 946312-53-4](/s/GFGKOZCELUMOKV-UHFFFAOYSA-N.svg)
N-(3-Chloro-4-methylphenyl)-3-(4-oxo-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)propanamide
CAS 946312-53-4C21H18ClN5O2
- N-(2-((3-(2-Chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)oxy)ethyl)-4-methylbenzamide1021066-51-2C21H18ClN5O2
- 2-(6-(4-Chlorophenyl)-3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)-N-(2,3-dimethylphenyl)acetamide1251582-32-7C21H18ClN5O2
- 2-(6-(4-Chlorophenyl)-3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)-N-(2,4-dimethylphenyl)acetamide1251630-89-3C21H18ClN5O2
- N-(4-Chlorophenyl)-2-(6-(3,4-dimethylphenyl)-3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)acetamide1251613-66-7C21H18ClN5O2
- N-(5-Chloro-2-methylphenyl)-2-{7-methyl-3-oxo-5-phenyl-2H,3H-[1,2,4]triazolo[4,3-c]pyrimidin-2-yl}acetamide1251557-43-3C21H18ClN5O2
- N-(2-Chloro-6-methylphenyl)-2-(5-methyl-3-oxo-7-phenyl-[1,2,4]triazolo[4,3-c]pyrimidin-2(3H)-yl)acetamide1251603-03-8C21H18ClN5O2
- 3-[3-(8-Chloro-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)-3-oxopropyl]-1,2,3-benzotriazin-4(3H)-one1374519-24-0C21H18ClN5O2
- (3-(2-Chlorophenyl)-5-methylisoxazol-4-yl)(2-methyl-8,9-dihydropyrazolo[1,5-a]pyrido[3,4-e]pyrimidin-7(6H)-yl)methanone1797189-93-5C21H18ClN5O2
- N-(2-Chlorobenzyl)-1-ethyl-2-imino-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide845991-25-5C21H18ClN5O2
- 1-(4-Chlorobenzyl)-N-ethyl-2-imino-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide877788-24-4C21H18ClN5O2
- N-(2-Chlorobenzyl)-2-imino-1,10-dimethyl-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide848683-26-1C21H18ClN5O2
- N-[(2-Chlorophenyl)methyl]-2-[1-(4-methylphenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]acetamide863446-82-6C21H18ClN5O2
- 2-[1-(4-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(2,5-dimethylphenyl)acetamide852440-77-8C21H18ClN5O2
- 2-(1-(4-Chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(3,5-dimethylphenyl)acetamide852440-79-0C21H18ClN5O2
- 2-(1-(4-Chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-(4-ethylphenyl)acetamide852440-81-4C21H18ClN5O2
- N-(3-Chloro-4-methylphenyl)-2-[1-(2-methylphenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]acetamide895014-28-5C21H18ClN5O2
- N-[(2-Chlorophenyl)methyl]-2-[1-(2-methylphenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]acetamide895014-46-7C21H18ClN5O2
- 2-[1-(3-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(2,4-dimethylphenyl)acetamide887457-77-4C21H18ClN5O2
- 2-[1-(3-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(3,5-dimethylphenyl)acetamide887457-80-9C21H18ClN5O2
- 2-[1-(3-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-(4-ethylphenyl)acetamide887457-83-2C21H18ClN5O2
- 2-(1-(3-Chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-phenethylacetamide895017-49-9C21H18ClN5O2
- 2-[1-(3-Chlorophenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]-N-[(4-methylphenyl)methyl]acetamide895017-69-3C21H18ClN5O2
- N-(3-Chlorophenyl)-2-[1-(2,3-dimethylphenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]acetamide894996-29-3C21H18ClN5O2
- N-(4-Chlorophenyl)-2-[1-(2,3-dimethylphenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]acetamide894996-37-3C21H18ClN5O2
- N-(3-Chlorophenyl)-2-[1-(2,4-dimethylphenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]acetamide895004-67-8C21H18ClN5O2
- N-(4-Chlorophenyl)-2-[1-(2,4-dimethylphenyl)-4-oxopyrazolo[3,4-d]pyrimidin-5-yl]acetamide895004-75-8C21H18ClN5O2
- N-(3-Chloro-4-methylphenyl)-2-(4-oxo-1-(p-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide863446-60-0C21H18ClN5O2
- 2-[1-(4-Chlorophenyl)-4-oxo-1H,4H,5H-pyrazolo[3,4-d]pyrimidin-5-yl]-N-(2,4-dimethylphenyl)acetamide852440-78-9C21H18ClN5O2
- N-(4-Chlorophenyl)-2-(1-(3,4-dimethylphenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide852451-36-6C21H18ClN5O2
- N-((1-(4-Chlorophenyl)-1H-tetrazol-5-yl)methyl)-2-ethoxy-1-naphthamide897615-37-1C21H18ClN5O2
- 2-(4-Chlorophenyl)-N-(1-(3,4-dimethylphenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)acetamide899967-56-7C21H18ClN5O2
- 2-[5-(3-Chlorophenyl)-7-methyl-3-oxo-2H,3H-[1,2,4]triazolo[4,3-c]pyrimidin-2-yl]-N-(4-methylphenyl)acetamide1251697-36-5C21H18ClN5O2
- N-(3-Chlorophenyl)-2-[2-(4-ethylphenyl)-4-oxopyrazolo[1,5-d][1,2,4]triazin-5(4H)-yl]acetamide1291870-84-2C21H18ClN5O2
- 3-(2-Chlorophenyl)-5-methyl-N-((1-methyl-5-(pyridin-2-yl)-1H-pyrazol-3-yl)methyl)isoxazole-4-carboxamide1421528-25-7C21H18ClN5O2
- 3-(1-(5-Chloro-1H-indole-2-carbonyl)piperidin-4-yl)pyrido[2,3-d]pyrimidin-4(3H)-one2034519-30-5C21H18ClN5O2
- 2-Amino-1-(3-chloro-4-methoxyphenyl)-N-cyclopropyl-1H-pyrrolo[2,3-b]quinoxaline-3-carboxamide488089-75-4C21H18ClN5O2
- 1-(2-Chlorobenzyl)-N-ethyl-2-imino-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide850802-45-8C21H18ClN5O2
- n4-(3-Chloro-4-(pyridin-2-ylmethoxy)phenyl)-7-methoxyquinazoline-4,6-diamine897025-65-9C21H18ClN5O2
- N-(4-Chloro-2-methoxy-5-methylphenyl)-1-phenyl-5-(1H-pyrrol-1-yl)-1H-1,2,3-triazole-4-carboxamide1795440-65-1C21H18ClN5O2
- 2-(4-Chlorophenyl)-N-{[6-(4-methoxyphenyl)-[1,2,4]triazolo[4,3-B]pyridazin-3-yl]methyl}acetamide1775550-81-6C21H18ClN5O2
- 3-(2-Chlorophenyl)-5-methyl-N-{2-[4-(pyridin-3-yl)-1H-pyrazol-1-yl]ethyl}-1,2-oxazole-4-carboxamide2097857-54-8C21H18ClN5O2
- 3-(2-Chlorophenyl)-5-methyl-N-{[1-methyl-3-(pyridin-2-yl)-1H-pyrazol-5-yl]methyl}-1,2-oxazole-4-carboxamide2309748-52-3C21H18ClN5O2
- N-{1-[(5-Chloro-1,2-benzoxazol-3-yl)methyl]azetidin-3-yl}-N-methylquinoxaline-2-carboxamide2380191-34-2C21H18ClN5O2
Frequently asked questions
What is the molar mass of C21H18ClN5O2?
The molar mass of C21H18ClN5O2 is 407.86 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 1 chlorine atom, 5 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 407.1149 Da.
How many compounds have the formula C21H18ClN5O2?
CompoundList lists 67 compounds with the molecular formula C21H18ClN5O2, including N-(3-Chlorophenyl)-2-[1-(3,4-dimethylphenyl)-4-oxo-5-pyrazolo[3,4-d]pyrimidinyl]acetamide, 2-(1-(4-Chlorophenyl)-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-yl)-N-phenethylacetamide, 3-[(2-Chlorophenyl)methyl]-1-methyl-8-phenyl-1H,2H,3H,4H,6H,7H,8H-imidazo[1,2-g]purine-2,4-dione. 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 C21H18ClN5O2?
C21H18ClN5O2 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.