Molecular formula
C21H21ClN4O2
87 compounds have this formula on CompoundList.
- Molar mass
- 396.88g/mol
- Monoisotopic mass
- 396.1353Da
- Atoms
- 49
- Elements
- 5
- Rings plus double bonds
- 13
The formula C21H21ClN4O2 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 1 chlorine atom, 4 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 × 2163.55%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 215.33%1.008 × 21 = 21.168 g/mol
- Cl Chlorine × 18.93%35.45 × 1 = 35.450 g/mol
- N Nitrogen × 414.12%14.007 × 4 = 56.028 g/mol
- O Oxygen × 28.06%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H21ClN4O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 87 of 87 compounds
![2-{3-[4-(2-Chlorophenyl)piperazin-1-yl]-3-oxopropyl}quinazolin-4(3H)-one chemical structure, C21H21ClN4O2, CAS 732992-20-0](/s/JCPUZLQBRRUUJP-UHFFFAOYSA-N.svg)
2-{3-[4-(2-Chlorophenyl)piperazin-1-yl]-3-oxopropyl}quinazolin-4(3H)-one
CAS 732992-20-0C21H21ClN4O2
![N-[5-Chloro-2-(pyrrolidin-1-yl)phenyl]-6-oxo-1-phenyl-1,4,5,6-tetrahydropyridazine-3-carboxamide chemical structure, C21H21ClN4O2, CAS 883465-16-5](/s/BGJHKEOFFKRVBE-UHFFFAOYSA-N.svg)
N-[5-Chloro-2-(pyrrolidin-1-yl)phenyl]-6-oxo-1-phenyl-1,4,5,6-tetrahydropyridazine-3-carboxamide
CAS 883465-16-5C21H21ClN4O2
3-(5-Chloro-2-methylphenyl)-6-(4-phenylpiperazin-1-yl)pyrimidine-2,4(1H,3H)-dione
CAS 847399-02-4C21H21ClN4O2
![4-(4-Chlorophenyl)-2-[2-(4-methylpiperazin-1-yl)-2-oxoethyl]phthalazin-1-one chemical structure, C21H21ClN4O2, CAS 684234-48-8](/s/QGKHKZLNQQVPAC-UHFFFAOYSA-N.svg)
4-(4-Chlorophenyl)-2-[2-(4-methylpiperazin-1-yl)-2-oxoethyl]phthalazin-1-one
CAS 684234-48-8C21H21ClN4O2
6-(4-(2-Chlorophenyl)piperazin-1-yl)-3-(p-tolyl)pyrimidine-2,4(1H,3H)-dione
CAS 847399-50-2C21H21ClN4O2
N-(2-(4-(2-Chlorophenyl)piperazin-1-yl)-2-oxoethyl)-1H-indole-3-carboxamide
CAS 1251578-19-4C21H21ClN4O2
![2-(2-Chlorophenyl)-N-[1-(3-pyridin-4-yl-1,2,4-oxadiazol-5-yl)cyclohexyl]acetamide chemical structure, C21H21ClN4O2, CAS 1396674-53-5](/s/OOXFAHGSZJJXNW-UHFFFAOYSA-N.svg)
2-(2-Chlorophenyl)-N-[1-(3-pyridin-4-yl-1,2,4-oxadiazol-5-yl)cyclohexyl]acetamide
CAS 1396674-53-5C21H21ClN4O2
![1-[2-(5-Chloro-1H-indol-3-yl)ethyl]-5-oxo-N-(pyridin-3-ylmethyl)pyrrolidine-3-carboxamide chemical structure, C21H21ClN4O2, CAS 931374-00-4](/s/DRQNZRLMMXYSAL-UHFFFAOYSA-N.svg)
1-[2-(5-Chloro-1H-indol-3-yl)ethyl]-5-oxo-N-(pyridin-3-ylmethyl)pyrrolidine-3-carboxamide
CAS 931374-00-4C21H21ClN4O2
![5-[1-(3-Chlorobenzoyl)piperidin-4-yl]-4-(4-methylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one chemical structure, C21H21ClN4O2, CAS 1775357-62-4](/s/WZYPQKMFNJRBSZ-UHFFFAOYSA-N.svg)
5-[1-(3-Chlorobenzoyl)piperidin-4-yl]-4-(4-methylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one
CAS 1775357-62-4C21H21ClN4O2
![5-{1-[(4-Chlorophenyl)acetyl]piperidin-4-yl}-4-phenyl-2,4-dihydro-3H-1,2,4-triazol-3-one chemical structure, C21H21ClN4O2, CAS 1775519-17-9](/s/STMZAINHDPLMAP-UHFFFAOYSA-N.svg)
5-{1-[(4-Chlorophenyl)acetyl]piperidin-4-yl}-4-phenyl-2,4-dihydro-3H-1,2,4-triazol-3-one
CAS 1775519-17-9C21H21ClN4O2
![N-[1-(5-Chloro-2-methoxy-4-pyridinyl)azetidin-3-yl]-2,4-dimethylquinoline-6-carboxamide chemical structure, C21H21ClN4O2, CAS 2148929-11-5](/s/NVGMPSJSLKIVIT-UHFFFAOYSA-N.svg)
N-[1-(5-Chloro-2-methoxy-4-pyridinyl)azetidin-3-yl]-2,4-dimethylquinoline-6-carboxamide
CAS 2148929-11-5C21H21ClN4O2
![(5-Chloro-2-{3-methyl-5-[(morpholin-4-yl)methyl]-4H-1,2,4-triazol-4-yl}phenyl)(phenyl)methanone chemical structure, C21H21ClN4O2, CAS 40545-73-1](/s/FRNDWGBVYLJORG-UHFFFAOYSA-N.svg)
(5-Chloro-2-{3-methyl-5-[(morpholin-4-yl)methyl]-4H-1,2,4-triazol-4-yl}phenyl)(phenyl)methanone
CAS 40545-73-1C21H21ClN4O2
N-(2-(1H-Indol-3-yl)ethyl)-2-(3-(4-chlorophenyl)-2-oxoimidazolidin-1-yl)acetamide
CAS 1251560-48-1C21H21ClN4O2
![N-(4-Chlorophenyl)-2-[1-oxo-4-(piperidin-1-yl)-1,2-dihydrophthalazin-2-yl]acetamide chemical structure, C21H21ClN4O2, CAS 950262-86-9](/s/COOZNZKTRNJAFG-UHFFFAOYSA-N.svg)
N-(4-Chlorophenyl)-2-[1-oxo-4-(piperidin-1-yl)-1,2-dihydrophthalazin-2-yl]acetamide
CAS 950262-86-9C21H21ClN4O2
![N-(2-Chlorophenyl)-2-{3-oxo-2-phenyl-1,4,8-triazaspiro[4.5]dec-1-en-8-yl}acetamide chemical structure, C21H21ClN4O2, CAS 932475-83-7](/s/GJSRYHYKXROGRQ-UHFFFAOYSA-N.svg)
N-(2-Chlorophenyl)-2-{3-oxo-2-phenyl-1,4,8-triazaspiro[4.5]dec-1-en-8-yl}acetamide
CAS 932475-83-7C21H21ClN4O2
1-(2-(1H-Indol-3-yl)ethyl)-3-(1-(4-chlorophenyl)-5-oxopyrrolidin-3-yl)urea
CAS 887466-30-0C21H21ClN4O2
N-(2-Chlorobenzyl)-1-(6-(furan-2-yl)pyridazin-3-yl)piperidine-4-carboxamide
CAS 1105233-95-1C21H21ClN4O2
1-(6-(4-Chlorophenyl)pyridazin-3-yl)-N-(furan-2-ylmethyl)piperidine-3-carboxamide
CAS 1105232-12-9C21H21ClN4O2
![2-[2-(4-Chlorophenyl)-4-methyl-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[4-(dimethylamino)phenyl]acetamide chemical structure, C21H21ClN4O2, CAS 1775401-27-8](/s/DCXUISPHDRDIBD-UHFFFAOYSA-N.svg)
2-[2-(4-Chlorophenyl)-4-methyl-6-oxo-1,6-dihydropyrimidin-1-yl]-N-[4-(dimethylamino)phenyl]acetamide
CAS 1775401-27-8C21H21ClN4O2
N-(3-Chloro-4-methoxyphenyl)-1-(quinoxalin-2-yl)piperidine-4-carboxamide
CAS 941950-25-0C21H21ClN4O2
N1-(5-chloro-2-cyanophenyl)-N2-(4-(pyrrolidin-1-yl)phenethyl)oxalamide
CAS 954012-21-6C21H21ClN4O2
![2-[4-[(4-Chlorophenyl)methyl-methylamino]phenyl]-5-(2-methoxyethylamino)-1,3-oxazole-4-carbonitrile chemical structure, C21H21ClN4O2, CAS 2986733-57-5](/s/REPYPLJBEDYASE-UHFFFAOYSA-N.svg)
2-[4-[(4-Chlorophenyl)methyl-methylamino]phenyl]-5-(2-methoxyethylamino)-1,3-oxazole-4-carbonitrile
CAS 2986733-57-5C21H21ClN4O2
2-(3-Chlorophenoxy)-N-(4-methyl-2-pyrrolidin-1-ylquinazolin-6-yl)acetamide
CAS 934474-97-2C21H21ClN4O2
![3-[7-(4-Chlorophenyl)-5-(4-methoxyphenyl)-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]propan-1-ol chemical structure, C21H21ClN4O2, CAS 618395-03-2](/s/XBMRTBXTCKZQHA-UHFFFAOYSA-N.svg)
3-[7-(4-Chlorophenyl)-5-(4-methoxyphenyl)-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]propan-1-ol
CAS 618395-03-2C21H21ClN4O2
- 3-[7-(2-Chlorophenyl)-5-(4-methoxyphenyl)-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]propan-1-ol618396-39-7C21H21ClN4O2
- 2-(4-Chlorophenoxy)-2-methyl-N-(4-((6-methylpyridazin-3-yl)amino)phenyl)propanamide1226448-85-6C21H21ClN4O2
- 3-[5-(4-Chlorophenyl)-7-(4-methoxyphenyl)-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]propan-1-ol618410-82-5C21H21ClN4O2
- 4-[5-(4-Chlorophenyl)-1H-pyrazol-3-yl]-1-[(4-nitrophenyl)methyl]piperidine156336-87-7C21H21ClN4O2
- 1-(2-Chlorophenyl)-3-[1-(3-phenyl-1,2,4-oxadiazol-5-yl)cyclohexyl]urea1396860-25-5C21H21ClN4O2
- N1-(3-chloro-2-methylphenyl)-N2-(3-(2-phenyl-1H-imidazol-1-yl)propyl)oxalamide1421508-92-0C21H21ClN4O2
- 2-(2-Chlorophenyl)-N-(1-((5-phenyl-1,2,4-oxadiazol-3-yl)methyl)pyrrolidin-3-yl)acetamide1396761-55-9C21H21ClN4O2
- (4-((3-Chloropyridin-2-yl)oxy)piperidin-1-yl)(5-methyl-1-phenyl-1H-pyrazol-4-yl)methanone1448130-94-6C21H21ClN4O2
- (4-((3-Chloropyridin-2-yl)oxy)piperidin-1-yl)(1-methyl-3-phenyl-1H-pyrazol-5-yl)methanone1448044-17-4C21H21ClN4O2
- (6-Chloro-4-hydroxyquinolin-3-yl){4-[2-(pyridin-4-yl)ethyl]piperazin-1-yl}methanone1630903-12-6C21H21ClN4O2
- (8-Chloro-4-hydroxyquinolin-3-yl){4-[2-(pyridin-2-yl)ethyl]piperazin-1-yl}methanone1630865-70-1C21H21ClN4O2
- (7-Chloro-4-hydroxyquinolin-3-yl){4-[2-(pyridin-4-yl)ethyl]piperazin-1-yl}methanone1630857-03-2C21H21ClN4O2
- (8-Chloro-4-hydroxyquinolin-3-yl){4-[2-(pyridin-4-yl)ethyl]piperazin-1-yl}methanone1630861-78-7C21H21ClN4O2
- (E)-3-(4-(3-Chlorophenyl)piperazin-1-yl)-2-cyano-N-(4-methoxyphenyl)acrylamide885179-17-9C21H21ClN4O2
- 5-Benzoyl-2-[(4-propylpiperazin-1-yl)carbonyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridine1251706-87-2C21H21ClN4O2
- 2-(2-Chlorophenyl)-N-(2-(3-cyclopropyl-5-oxo-4-phenyl-4,5-dihydro-1H-1,2,4-triazol-1-yl)ethyl)acetamide1396861-65-6C21H21ClN4O2
- (4-((1H-Imidazol-1-yl)methyl)phenyl)(4-((3-chloropyridin-2-yl)oxy)piperidin-1-yl)methanone1448133-86-5C21H21ClN4O2
- 2-(4-Chlorophenoxy)-2-methyl-1-(3-(4-phenyl-1H-1,2,3-triazol-1-yl)azetidin-1-yl)propan-1-one2034523-72-1C21H21ClN4O2
- (7-Chloro-4-hydroxyquinolin-3-yl){4-[2-(pyridin-2-yl)ethyl]piperazin-1-yl}methanone1630900-07-0C21H21ClN4O2
- 5-Chloro-1-methyl-N-{2-[(4-methylbenzyl)amino]-2-oxoethyl}-3-phenyl-1H-pyrazole-4-carboxamide956624-64-9C21H21ClN4O2
- 6-(4-(2-Chlorophenyl)piperazin-1-yl)-3-(o-tolyl)pyrimidine-2,4(1H,3H)-dione847399-29-5C21H21ClN4O2
- N1-(5-chloro-2-cyanophenyl)-N2-(2-(1-methyl-1,2,3,4-tetrahydroquinolin-6-yl)ethyl)oxalamide946281-36-3C21H21ClN4O2
- (4-((3-Chloro-4-methoxyphenyl)amino)-7-methyl-1,8-naphthyridin-3-yl)(pyrrolidin-1-yl)methanone1251616-37-1C21H21ClN4O2
- N-(3-Acetylphenyl)-2-[4-(4-chlorophenyl)-3-(dimethylamino)-1H-pyrazol-1-yl]acetamide1286720-11-3C21H21ClN4O2
- 2,3-Bis(4-methoxyphenyl)-5-phenyl-2,3-dihydro-1H-tetrazol-1-ium chloride104497-79-2C21H21ClN4O2
- 1-(2-Chlorophenyl)-3-[(3-cyclopentyl-4-oxo-3,4-dihydrophthalazin-1-yl)methyl]urea1421468-33-8C21H21ClN4O2
- N1-(2-chlorobenzyl)-N2-(3-(2-phenyl-1H-imidazol-1-yl)propyl)oxalamide1421461-97-3C21H21ClN4O2
- 3-[1-(2-Chlorobenzoyl)piperidin-3-yl]-1-methyl-4-phenyl-4,5-dihydro-1H-1,2,4-triazol-5-one1421585-09-2C21H21ClN4O2
- 3-(1-(3-(3-Chlorophenyl)propanoyl)piperidin-4-yl)pyrido[2,3-d]pyrimidin-4(3H)-one2034224-85-4C21H21ClN4O2
- 1-(3-Chloro-4-methylphenyl)-4-{3-[4-(dimethylamino)phenyl]-1,2,4-oxadiazol-5-YL}pyrrolidin-2-one941893-40-9C21H21ClN4O2
- N~2~-{2-[4-(3-chlorophenyl)piperazino]-2-oxoethyl}-1H-indole-2-carboxamide951975-59-0C21H21ClN4O2
- 1-(1-(4-Chlorophenyl)-5-oxopyrrolidin-3-yl)-3-((2-methyl-1H-indol-5-yl)methyl)urea887466-32-2C21H21ClN4O2
- N-(2-(3-(4-Chlorophenyl)-6-oxopyridazin-1(6H)-yl)ethyl)-4-(dimethylamino)benzamide921578-16-7C21H21ClN4O2
- 6-(4-Benzylpiperazin-1-yl)-3-(4-chlorophenyl)-1,2,3,4-tetrahydropyrimidine-2,4-dione847398-45-2C21H21ClN4O2
- 2-(4-Chlorophenyl)-N-(4-((6-ethoxy-2-methylpyrimidin-4-yl)amino)phenyl)acetamide946234-23-7C21H21ClN4O2
- 1-(2-(1H-Indol-1-yl)ethyl)-3-(1-(4-chlorophenyl)-5-oxopyrrolidin-3-yl)urea894032-13-4C21H21ClN4O2
- N-{1-[(6-Chloropyridin-3-yl)carbonyl]piperidin-4-yl}-1-methyl-1H-indole-2-carboxamide1282096-91-6C21H21ClN4O2
- N-{1-[(6-Chloropyridin-3-yl)carbonyl]piperidin-4-yl}-1-methyl-1H-indole-3-carboxamide1282126-66-2C21H21ClN4O2
- N-(4-Chlorophenyl)-2-(3-morpholino-4-phenyl-1H-pyrazol-1-yl)acetamide1286699-21-5C21H21ClN4O2
- 2-(5-Chloro-6-oxo-4-(piperidin-1-yl)pyridazin-1(6H)-yl)-N-(naphthalen-1-yl)acetamide1360270-73-0C21H21ClN4O2
- N-{[1-(4-Chlorophenyl)cyclopropyl]methyl}-6-methoxy-5-(4-methyl-1H-imidazol-1-yl)pyridine-2-carboxamide1294002-19-9C21H21ClN4O2
- N-[2-(1H-1,3-Benzimidazol-2-yl)ethyl]-5-chloro-1-(2-methoxyethyl)-1H-indole-2-carboxamide1574518-21-0C21H21ClN4O2
- 3-(3-Chlorophenyl)-1-(3-(4-(phenoxymethyl)-1H-1,2,3-triazol-1-yl)azetidin-1-yl)propan-1-one2034340-37-7C21H21ClN4O2
- 8-Chloro-11-oxo-N-(3-phenylpropyl)-3,4-dihydro-1H-dipyrido[1,2-a:4',3'-d]pyrimidine-2(11H)-carboxamide2034531-89-8C21H21ClN4O2
- 1-(4-Chlorophenyl)-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)cyclopentanecarboxamide1904222-81-6C21H21ClN4O2
- N-(5-Chloro-2-methoxyphenyl)-4-(1-methyl-1H-pyrazol-4-yl)-3,4-dihydroisoquinoline-2(1H)-carboxamide2034298-13-8C21H21ClN4O2
- (3-((3-Chloropyridin-4-yl)oxy)piperidin-1-yl)(5-methyl-1-phenyl-1H-pyrazol-4-yl)methanone2034500-62-2C21H21ClN4O2
- (3-((3-Chloropyridin-4-yl)oxy)piperidin-1-yl)(1-methyl-3-phenyl-1H-pyrazol-5-yl)methanone2034526-00-4C21H21ClN4O2
- 3-[2-(4-Benzylpiperidin-1-yl)-2-oxoethyl]-6-chloro-3H,4H-pyrido[3,4-d]pyrimidin-4-one2224537-24-8C21H21ClN4O2
- N-[(2-Chloro-6-methoxy-3-quinolinyl)methyl]-N-cyclopentyl-2-pyrazinecarboxamide606102-67-4C21H21ClN4O2
- 2-(4-Chlorophenyl)-N-(4-oxo-2-pyrrolidin-1-yl-4H-quinazolin-3-yl)propionamide1086684-21-0C21H21ClN4O2
- N-(3-Chloro-2-methylphenyl)-1-(4-propionamidobenzyl)-1H-imidazole-4-carboxamide1251689-79-8C21H21ClN4O2
- (4-Chloro-phenyl)-[6-(6-methyl-pyridin-2-yl)-pyrazin-2-yl]-carbamic acid tert-butyl ester1133082-96-8C21H21ClN4O2
- 3-Chloro-4-({1-[3-(1H-pyrazol-1-yl)benzoyl]piperidin-4-yl}methoxy)pyridine2640829-75-8C21H21ClN4O2
- 2-Chloro-N-[4-[[1-[(1-methylpyrazol-4-yl)methyl]aziridin-2-yl]methoxy]phenyl]benzamide2418661-47-7C21H21ClN4O2
- N-(3-Chloro-2-methylphenyl)-N'-{2-[4-(1-methyl-1H-pyrazol-5-yl)phenyl]ethyl}ethanediamide2640835-66-9C21H21ClN4O2
- 2-Chloro-3-nitro-N-(4-(pyrrolidin-1-ylmethyl)benzyl)quinolin-4-amine2810784-40-6C21H21ClN4O2
- 5-Methyl-4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)methyl]-2-phenyl-4H-pyrazol-3-one, hydrochloride1049728-15-5C21H21ClN4O2
- N-(4-Chlorophenyl)-N'-[4-(6-oxo-3-phenylpyridazin-1(6H)-yl)butyl]urea87653-31-4C21H21ClN4O2
- 2,3-Bis(2-methoxyphenyl)-5-phenyl-2,3-dihydro-1H-tetrazol-1-ium chloride185034-13-3C21H21ClN4O2
- (4-(4-Amino-2-chlorophenyl)piperazin-1-yl)(5-methyl-3-phenylisoxazol-4-yl)methanone1360438-03-4C21H21ClN4O2
- N-(3-Chloro-2-methylphenyl)-N'-{2-[4-(1-methyl-1H-pyrazol-4-yl)phenyl]ethyl}ethanediamide2549042-01-3C21H21ClN4O2
- N'-((5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene)-2-(2-ethylphenoxy)acetohydrazide353245-64-4C21H21ClN4O2
Frequently asked questions
What is the molar mass of C21H21ClN4O2?
The molar mass of C21H21ClN4O2 is 396.88 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 1 chlorine atom, 4 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 396.1353 Da.
How many compounds have the formula C21H21ClN4O2?
CompoundList lists 87 compounds with the molecular formula C21H21ClN4O2, including 2-{3-[4-(2-Chlorophenyl)piperazin-1-yl]-3-oxopropyl}quinazolin-4(3H)-one, N-[5-Chloro-2-(pyrrolidin-1-yl)phenyl]-6-oxo-1-phenyl-1,4,5,6-tetrahydropyridazine-3-carboxamide, 3-(5-Chloro-2-methylphenyl)-6-(4-phenylpiperazin-1-yl)pyrimidine-2,4(1H,3H)-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 C21H21ClN4O2?
C21H21ClN4O2 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.