Molecular formula
C21H21ClN2O3
95 compounds have this formula on CompoundList.
- Molar mass
- 384.86g/mol
- Monoisotopic mass
- 384.1241Da
- Atoms
- 48
- Elements
- 5
- Rings plus double bonds
- 12
The formula C21H21ClN2O3 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 1 chlorine atom, 2 nitrogen atoms and 3 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 × 2165.54%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 215.50%1.008 × 21 = 21.168 g/mol
- Cl Chlorine × 19.21%35.45 × 1 = 35.450 g/mol
- N Nitrogen × 27.28%14.007 × 2 = 28.014 g/mol
- O Oxygen × 312.47%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C21H21ClN2O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 95 of 95 compounds
1-Butyl-N-(4-chlorobenzyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide
CAS 305864-10-2C21H21ClN2O3
N-(2-(4-Chlorophenyl)ethyl)-1,2-dihydro-4-hydroxy-2-oxo-1-propyl-3-quinolinecarboxamide
CAS 370870-09-0C21H21ClN2O3
![1-Butyl-N-[(2-chlorophenyl)methyl]-2-hydroxy-4-oxoquinoline-3-carboxamide chemical structure, C21H21ClN2O3, CAS 303093-46-1](/s/CSSADDDLUREGQK-UHFFFAOYSA-N.svg)
1-Butyl-N-[(2-chlorophenyl)methyl]-2-hydroxy-4-oxoquinoline-3-carboxamide
CAS 303093-46-1C21H21ClN2O3
![6-Chloro-7-hydroxy-8-[(4-methylpiperazin-1-yl)methyl]-4-phenyl-2H-chromen-2-one chemical structure, C21H21ClN2O3, CAS 344743-92-6](/s/XFBSPFIQPJJIEQ-UHFFFAOYSA-N.svg)
6-Chloro-7-hydroxy-8-[(4-methylpiperazin-1-yl)methyl]-4-phenyl-2H-chromen-2-one
CAS 344743-92-6C21H21ClN2O3
2-Phenylethyl 4-(4-chlorophenyl)-1,6-dimethyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
CAS 312697-83-9C21H21ClN2O3
6-Chloro-4-((4-(4-methoxyphenyl)piperazin-1-yl)methyl)-2H-chromen-2-one
CAS 896071-08-2C21H21ClN2O3
N-(4-Chlorophenyl)-4-hydroxy-2-oxo-1-pentyl-1,2-dihydro-3-quinolinecarboxamide
CAS 303093-25-6C21H21ClN2O3
N-(8-Chloro-2,3,4,9-tetrahydro-1H-carbazol-1-yl)-3,4-dimethoxybenzamide
CAS 1574405-61-0C21H21ClN2O3
![3-(4-Chlorophenyl)-7-hydroxy-8-[(4-methylpiperazinyl)methyl]chromen-4-one chemical structure, C21H21ClN2O3, CAS 302575-41-3](/s/TYFNOINQPUWVQT-UHFFFAOYSA-N.svg)
3-(4-Chlorophenyl)-7-hydroxy-8-[(4-methylpiperazinyl)methyl]chromen-4-one
CAS 302575-41-3C21H21ClN2O3
Methanone, (1-amino-5-ethyl-8,9-dihydro-8,8-dimethyl-6H-furo(2,3-b)pyrano(4,3-d)pyridin-2-yl)(4-chlorophenyl)-
CAS 172985-20-5C21H21ClN2O3
4-(2-(Cyclohexylcarbonyl)carbohydrazonoyl)phenyl 4-chlorobenzoate
CAS 881664-82-0C21H21ClN2O3
![3-(4-Chlorophenyl)-7-hydroxy-8-[(4-methylpiperazin-1-yl)methyl]-2H-chromen-2-one chemical structure, C21H21ClN2O3, CAS 827002-89-1](/s/RKMPYXMVYPFPJJ-UHFFFAOYSA-N.svg)
3-(4-Chlorophenyl)-7-hydroxy-8-[(4-methylpiperazin-1-yl)methyl]-2H-chromen-2-one
CAS 827002-89-1C21H21ClN2O3
LR 19731
CAS 71923-34-7C21H21ClN2O3
(4-Chlorophenyl)(4-(3-(3,5-dimethyl-1H-pyrazol-1-yl)-2-hydroxypropoxy)phenyl)methanone
CAS 890643-89-7C21H21ClN2O3
![6-{2-[4-(2-Chlorophenyl)piperazin-1-yl]-2-oxoethoxy}-2,3-dihydro-1H-inden-1-one chemical structure, C21H21ClN2O3, CAS 1203266-44-7](/s/JVANDPYTHZMPME-UHFFFAOYSA-N.svg)
6-{2-[4-(2-Chlorophenyl)piperazin-1-yl]-2-oxoethoxy}-2,3-dihydro-1H-inden-1-one
CAS 1203266-44-7C21H21ClN2O3
Alstonine hydrochloride
CAS 6058-40-8C21H21ClN2O3
![5-Chloro-N-[2-(5,8-dimethyl-2-oxo-1H-quinolin-3-yl)ethyl]-2-methoxybenzamide chemical structure, C21H21ClN2O3, CAS 851406-60-5](/s/PTKJPGGMYQUKBM-UHFFFAOYSA-N.svg)
5-Chloro-N-[2-(5,8-dimethyl-2-oxo-1H-quinolin-3-yl)ethyl]-2-methoxybenzamide
CAS 851406-60-5C21H21ClN2O3
1-(4-Benzoylphenoxy)-3-(4-chloro-3,5-dimethyl-1H-pyrazol-1-yl)propan-2-ol
CAS 890603-38-0C21H21ClN2O3
![2-[1-(4-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indol-3-yl]-N,N-dimethylacetamide chemical structure, C21H21ClN2O3, CAS 2854-33-3](/s/QVYWHCXTWBDFCX-UHFFFAOYSA-N.svg)
2-[1-(4-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indol-3-yl]-N,N-dimethylacetamide
CAS 2854-33-3C21H21ClN2O3
![2-(4-Chlorophenoxy)-N-[1-(cyclopropanecarbonyl)-3,4-dihydro-2H-quinolin-7-yl]acetamide chemical structure, C21H21ClN2O3, CAS 898439-15-1](/s/FRKHQXCUHBZZFS-UHFFFAOYSA-N.svg)
2-(4-Chlorophenoxy)-N-[1-(cyclopropanecarbonyl)-3,4-dihydro-2H-quinolin-7-yl]acetamide
CAS 898439-15-1C21H21ClN2O3
2-(4-Chlorophenoxy)-N-(2-cyclopropanecarbonyl-1,2,3,4-tetrahydroisoquinolin-7-yl)acetamide
CAS 955765-21-6C21H21ClN2O3
5-Chloro-N-(2-(cyclopropanecarbonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)-2-methoxybenzamide
CAS 955765-98-7C21H21ClN2O3
![N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-2-chlorobenzamide chemical structure, C21H21ClN2O3, CAS 921794-45-8](/s/NIAMJMJJLGVFMS-UHFFFAOYSA-N.svg)
N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-2-chlorobenzamide
CAS 921794-45-8C21H21ClN2O3
![N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-3-chlorobenzamide chemical structure, C21H21ClN2O3, CAS 921565-14-2](/s/PUPHDEQGTMUKSL-UHFFFAOYSA-N.svg)
N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-3-chlorobenzamide
CAS 921565-14-2C21H21ClN2O3
- N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-4-chlorobenzamide921560-92-1C21H21ClN2O3
- N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-2-chlorobenzamide921790-84-3C21H21ClN2O3
- 6-Chloro-3-(3,4-dimethoxyphenethyl)-3,4-dihydro-2H-[1,3]oxazino[5,6-h]quinoline438486-25-0C21H21ClN2O3
- (E)-[2-(2-Chlorophenyl)-1-[2-(dimethylazaniumyl)ethyl]-4,5-dioxopyrrolidin-3-ylidene]-phenylmethanolate309923-43-1C21H21ClN2O3
- (4E)-4-[(4-Chlorophenyl)(hydroxy)methylidene]-1-[2-(dimethylamino)ethyl]-5-phenylpyrrolidine-2,3-dione384854-83-5C21H21ClN2O3
- N-(4-Butoxyphenyl)-3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carboxamide301682-40-6C21H21ClN2O3
- 2-(4-Chlorophenyl)-5-isopropyl-3-(p-tolyl)dihydro-2H-pyrrolo[3,4-d]isoxazole-4,6(5H,6aH)-dione1005060-26-3C21H21ClN2O3
- N-(3-Chloro-4-methylphenyl)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-4-methylpentanamide429624-07-7C21H21ClN2O3
- Serpentine hydrochloride55322-91-3C21H21ClN2O3
- 4-((4-(3-Chlorophenyl)piperazin-1-yl)methyl)-7-methoxy-2H-chromen-2-one859858-18-7C21H21ClN2O3
- 4-Benzoyl-5-(4-chlorophenyl)-1-[2-(dimethylamino)ethyl]-3-hydroxy-1,5-dihydro-2H-pyrrol-2-one337923-22-5C21H21ClN2O3
- 3-(2-Chlorophenyl)-7-hydroxy-8-[(4-methylpiperazin-1-yl)methyl]-4H-chromen-4-one333747-51-6C21H21ClN2O3
- (Z)-2-(2-Chlorobenzylidene)-6-hydroxy-7-((4-methylpiperazin-1-yl)methyl)benzofuran-3(2H)-one869078-28-4C21H21ClN2O3
- 3-Chloro-N-(2-methoxyethyl)-N-[(6-methyl-2-oxo-1H-quinolin-3-yl)methyl]benzamide839680-62-5C21H21ClN2O3
- 5-Butyl-2-(4-chlorophenyl)-3-phenyldihydro-2H-pyrrolo[3,4-d]isoxazole-4,6(5H,6aH)-dione1005052-86-7C21H21ClN2O3
- (5Z)-5-[4-(Butan-2-yloxy)benzylidene]-3-(4-chlorobenzyl)imidazolidine-2,4-dione432005-96-4C21H21ClN2O3
- (Z)-2-(4-Chlorobenzylidene)-6-hydroxy-7-((4-methylpiperazin-1-yl)methyl)benzofuran-3(2H)-one869078-27-3C21H21ClN2O3
- 4-((4-(3-Chlorophenyl)piperazin-1-yl)methyl)-5-hydroxy-7-methyl-2H-chromen-2-one896080-39-0C21H21ClN2O3
- 4-{[4-(3-Chlorophenyl)piperazin-1-yl]methyl}-6-hydroxy-7-methyl-2H-chromen-2-one859127-25-6C21H21ClN2O3
- 2-Chloro-N-(2-methoxyethyl)-N-[(8-methyl-2-oxo-1H-quinolin-3-yl)methyl]benzamide838885-56-6C21H21ClN2O3
- (Z)-2-(3-Chlorobenzylidene)-6-hydroxy-7-((4-methylpiperazin-1-yl)methyl)benzofuran-3(2H)-one899394-30-0C21H21ClN2O3
- (2E)-3-(4-Butoxy-3-methoxyphenyl)-N-(2-chlorophenyl)-2-cyanoprop-2-enamide380434-48-0C21H21ClN2O3
- (2E)-3-(4-Butoxy-3-methoxyphenyl)-N-(3-chlorophenyl)-2-cyanoprop-2-enamide357617-98-2C21H21ClN2O3
- Rmi 6139256958-66-8C21H21ClN2O3
- N-[(3-Chlorophenyl)methyl]-N-[1-(4-ethylphenyl)-2,5-dioxopyrrolidin-3-yl]acetamide492425-78-2C21H21ClN2O3
- 2-(4-Chlorophenoxy)-N-[2-(7,8-dimethyl-2-oxo-1H-quinolin-3-yl)ethyl]acetamide851407-51-7C21H21ClN2O3
- 4-((4-(3-Chlorophenyl)piperazin-1-yl)methyl)-7-hydroxy-8-methyl-2H-chromen-2-one849898-71-1C21H21ClN2O3
- 3-{[(3-Chloro-2,2-dimethylpropanoyl)oxy]imino}-1-(4-methylbenzyl)-1,3-dihydro-2H-indol-2-one303149-56-6C21H21ClN2O3
- 3-Chloro-6-(2,3-dihydroxyphenyl)-9,9-dimethyl-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one1023497-45-1C21H21ClN2O3
- N-(3-Chloro-4-methylphenyl)-2-[(1-oxo-2-propyl-1,2-dihydroisoquinolin-5-yl)oxy]acetamide906157-08-2C21H21ClN2O3
- 1-(4-Chlorobenzyl)-5-methyl-3-[(pentanoyloxy)imino]-1,3-dihydro-2H-indol-2-one320420-87-9C21H21ClN2O3
- N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-4-chlorobenzamide921794-03-8C21H21ClN2O3
- 1-(4-Chlorophenyl)-4-(8-oxo-5,6-dihydro-1H-1,5-methanopyrido[1,2-a][1,5]diazocin-3(2H,4H,8H)-yl)butane-1,4-dione1226437-16-6C21H21ClN2O3
- 2-(4-Chlorophenoxy)-N-(furan-2-ylmethyl)-2-methyl-N-(pyridin-2-ylmethyl)propanamide1286703-97-6C21H21ClN2O3
- 4-Chloro-N-(2-methoxyethyl)-N-[(7-methyl-2-oxo-1H-quinolin-3-yl)methyl]benzamide838899-51-7C21H21ClN2O3
- 2(3H)-Benzoxazolone, 6-(2-chlorobenzoyl)-3-((4-methyl-1-piperidinyl)methyl)-99541-45-4C21H21ClN2O3
- 2-(4-Chlorophenoxy)-N-[2-(5,8-dimethyl-2-oxo-1H-quinolin-3-yl)ethyl]acetamide851406-49-0C21H21ClN2O3
- 5-Chloro-N-[2-(6,7-dimethyl-2-oxo-1H-quinolin-3-yl)ethyl]-2-methoxybenzamide851096-26-9C21H21ClN2O3
- 5-Chloro-N-[2-(7,8-dimethyl-2-oxo-1H-quinolin-3-yl)ethyl]-2-methoxybenzamide851407-62-0C21H21ClN2O3
- [(Z)-[1-[(4-Chlorophenyl)methyl]-5-methyl-2-oxoindol-3-ylidene]amino] 3-methylbutanoate320420-88-0C21H21ClN2O3
- N-(3-Chlorophenyl)-3-(3,3-dimethylbutanamido)benzofuran-2-carboxamide888463-58-9C21H21ClN2O3
- 1-[4-[(3E)-3-[(4-Chlorophenyl)methoxyimino]propanoyl]phenyl]-3,3-dimethylazetidin-2-one303985-99-1C21H21ClN2O3
- 8-Chloro-2-[(3,4-dimethoxyphenyl)acetyl]-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole1040711-29-2C21H21ClN2O3
- 2-[2-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-ethyl]-6-methoxy-benzoic acid methyl ester776286-11-4C21H21ClN2O3
- (E)-3-(2-Chlorophenyl)-N-(1-(2-methoxyacetyl)-1,2,3,4-tetrahydroquinolin-7-yl)acrylamide1251711-26-8C21H21ClN2O3
- 3-{2-[4-(4-Chlorophenyl)-4-hydroxypiperidino]-2-oxoethyl}-1,3-dihydro-2H-indol-2-one1436002-96-8C21H21ClN2O3
- 2-{2-[4-(4-Chlorophenyl)-4-hydroxypiperidin-1-yl]-2-oxoethyl}-2,3-dihydro-1H-isoindol-1-one1574290-71-3C21H21ClN2O3
- N-(2-(7-Chloro-3-oxo-2,3-dihydrobenzo[f][1,4]oxazepin-4(5H)-yl)ethyl)-1-phenylcyclopropanecarboxamide1903165-56-9C21H21ClN2O3
- 2(3H)-Benzoxazolone, 6-(2-chlorobenzoyl)-3-((2-methyl-1-piperidinyl)methyl)-99541-44-3C21H21ClN2O3
- 5-Chloro-N-[1-(cyclopropanecarbonyl)-3,4-dihydro-2H-quinolin-6-yl]-2-methoxybenzamide1005305-60-1C21H21ClN2O3
- 2-[(5-Chloro-1H-indol-1-yl)acetyl]-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline1144450-84-9C21H21ClN2O3
- N-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-3-chlorobenzamide921546-26-1C21H21ClN2O3
- 1-[4-(4-Chlorophenyl)-4-hydroxypiperidin-1-yl]-2-(1H-indol-4-yloxy)ethanone1010895-01-8C21H21ClN2O3
- 7-{2-[(4-Chlorophenyl)methoxy]benzoyl}-1,7-diazaspiro[3.5]nonan-2-one1252529-01-3C21H21ClN2O3
- Ethyl 1-({5-chloro-2-[(phenylmethyl)oxy]phenyl}methyl)-5-methyl-1H-pyrazole-3-carboxylate913566-76-4C21H21ClN2O3
- (E)-N-(2-(7-Chloro-3-oxo-2,3-dihydrobenzo[f][1,4]oxazepin-4(5H)-yl)ethyl)-2-methyl-3-phenylacrylamide2035004-74-9C21H21ClN2O3
- (6-Chloro-1-methyl-1H-indol-2-yl)(6,7-dimethoxy-3,4-dihydroisoquinolin-2(1H)-yl)methanone1630840-47-9C21H21ClN2O3
- (E)-4-((1-(3-(2-Chlorophenyl)acryloyl)azetidin-3-yl)oxy)-1-cyclopropyl-6-methylpyridin-2(1H)-one2034893-55-3C21H21ClN2O3
- N-[3-(Aminomethyl)-3-phenylcyclobutyl]-4-oxochromene-2-carboxamide, hydrochloride2418732-92-8C21H21ClN2O3
- 3-(3-Chloro-4,5-dimethoxyphenyl)-2-cyano-N-(2,4,6-trimethylphenyl)prop-2-enamide743441-48-7C21H21ClN2O3
- (E)-[2-(4-Chlorophenyl)-1-[2-(dimethylazaniumyl)ethyl]-4,5-dioxopyrrolidin-3-ylidene]-phenylmethanolateC21H21ClN2O3
- [4-(5-Chloro-2-methylphenyl)piperazin-1-yl]-(7-methoxy-1-benzofuran-2-yl)methanone915881-27-5C21H21ClN2O3
- 2-Chloro-N-[2-(3,4-dimethoxyphenyl)ethyl]-5-(1H-pyrrol-1-yl)benzamide1081137-64-5C21H21ClN2O3
- 2-Methoxy-6-[2-(3-methyl-1-phenyl-1H-pyrazol-4-yl)-vinyl]-benzoic acid methyl ester, hydrochloride1217195-32-8C21H21ClN2O3
- (E)-N-[(3-Chlorophenyl)-cyanomethyl]-3-(3-methoxy-4-propan-2-yloxyphenyl)prop-2-enamide1281682-22-1C21H21ClN2O3
- Benzyl 4-(5-chloro-2-oxoindolin-1-yl)piperidine-1-carboxylate1956385-23-1C21H21ClN2O3
- 3-Benzoyl-6-methoxy-4-(morpholin-4-yl)quinoline hydrochloride2097919-34-9C21H21ClN2O3
- 3-(4-Methoxybenzoyl)-4-(morpholin-4-yl)quinoline hydrochloride2097893-02-0C21H21ClN2O3
- 5H-1,3-Dioxolo(4,5-f)pyrido(4,3-b)indole, 6,7,8,9-tetrahydro-5-(p-toluoyl)-8-methyl-, monohydrochloride50279-99-7C21H21ClN2O3
- 4(3H)-Quinazolinone,3-(4-chlorophenyl)-8-(cyclopropylmethoxy)-7-hydroxy-2-(1-methylethyl)-871814-22-1C21H21ClN2O3
- (9H-Fluoren-9-yl)methyl 4-(2-chloroacetyl)piperazine-1-carboxylate2680742-25-8C21H21ClN2O3
Frequently asked questions
What is the molar mass of C21H21ClN2O3?
The molar mass of C21H21ClN2O3 is 384.86 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 1 chlorine atom, 2 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 384.1241 Da.
How many compounds have the formula C21H21ClN2O3?
CompoundList lists 95 compounds with the molecular formula C21H21ClN2O3, including 1-Butyl-N-(4-chlorobenzyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide, N-(2-(4-Chlorophenyl)ethyl)-1,2-dihydro-4-hydroxy-2-oxo-1-propyl-3-quinolinecarboxamide, 1-Butyl-N-[(2-chlorophenyl)methyl]-2-hydroxy-4-oxoquinoline-3-carboxamide. 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 C21H21ClN2O3?
C21H21ClN2O3 has a degree of unsaturation of 12. 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.