Molecular formula
C18H21ClN2O3
72 compounds have this formula on CompoundList.
- Molar mass
- 348.83g/mol
- Monoisotopic mass
- 348.1241Da
- Atoms
- 45
- Elements
- 5
- Rings plus double bonds
- 9
The formula C18H21ClN2O3 describes a molecule made of 18 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 × 1861.98%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 216.07%1.008 × 21 = 21.168 g/mol
- Cl Chlorine × 110.16%35.45 × 1 = 35.450 g/mol
- N Nitrogen × 28.03%14.007 × 2 = 28.014 g/mol
- O Oxygen × 313.76%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H21ClN2O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 72 of 72 compounds
5-(5-(2-Chloro-4-(4,5-dihydro-2-oxazolyl)phenoxy)pentyl)-3-methylisoxazole
CAS 98033-68-2C18H21ClN2O3
![[2-(1-Adamantylamino)-2-oxoethyl] 2-chloropyridine-3-carboxylate chemical structure, C18H21ClN2O3, CAS 389620-37-5](/s/FPZIFJAZEDKBPH-UHFFFAOYSA-N.svg)
[2-(1-Adamantylamino)-2-oxoethyl] 2-chloropyridine-3-carboxylate
CAS 389620-37-5C18H21ClN2O3
![[5-[(4-Chlorophenoxy)methyl]furan-2-yl]-(4-ethylpiperazin-1-yl)methanone chemical structure, C18H21ClN2O3, CAS 353479-36-4](/s/HSYNSYPASKNBOH-UHFFFAOYSA-N.svg)
[5-[(4-Chlorophenoxy)methyl]furan-2-yl]-(4-ethylpiperazin-1-yl)methanone
CAS 353479-36-4C18H21ClN2O3
![Ethyl 1-[(5-chloro-8-hydroxyquinolin-7-yl)methyl]piperidine-4-carboxylate chemical structure, C18H21ClN2O3, CAS 325992-62-9](/s/YWEXHQWKIYEQNE-UHFFFAOYSA-N.svg)
Ethyl 1-[(5-chloro-8-hydroxyquinolin-7-yl)methyl]piperidine-4-carboxylate
CAS 325992-62-9C18H21ClN2O3
N-(1-Adamantylmethyl)-2-chloro-5-nitrobenzamide
CAS 227327-87-9C18H21ClN2O3
NBOH-2C-CN hydrochloride
CAS 1539266-32-4C18H21ClN2O3
2-Methylcyclopentyl 4-(4-chlorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
CAS 299422-68-7C18H21ClN2O3
![Ethyl 1-[(5-chloro-8-hydroxyquinolin-7-yl)methyl]piperidine-3-carboxylate chemical structure, C18H21ClN2O3, CAS 380193-04-4](/s/FIPMGUDDBKBODJ-UHFFFAOYSA-N.svg)
Ethyl 1-[(5-chloro-8-hydroxyquinolin-7-yl)methyl]piperidine-3-carboxylate
CAS 380193-04-4C18H21ClN2O3
1-(2-Chlorophenyl)-3-(2-hydroxy-3-(4-methoxyphenyl)-2-methylpropyl)urea
CAS 1396847-40-7C18H21ClN2O3
ZK 93426 Hydrochloride
CAS 1216792-30-1C18H21ClN2O3
Cyclopentyl 4-(4-chlorophenyl)-1,6-dimethyl-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate
CAS 313969-38-9C18H21ClN2O3
![2-Chloro-N-[(1-hydroxycycloheptyl)methyl]-5-(4-isoxazolyl)benzamide chemical structure, C18H21ClN2O3, CAS 1333869-86-5](/s/XYMYWMOFIPIHCA-UHFFFAOYSA-N.svg)
2-Chloro-N-[(1-hydroxycycloheptyl)methyl]-5-(4-isoxazolyl)benzamide
CAS 1333869-86-5C18H21ClN2O3
3-Chloro-4-(2-ethylpiperidin-1-yl)-1-(4-methoxyphenyl)-1H-pyrrole-2,5-dione
CAS 6148-13-6C18H21ClN2O3
Cyclopentyl 4-(2-chlorophenyl)-1,6-dimethyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
CAS 313970-02-4C18H21ClN2O3
Cyclohexyl 4-(4-chlorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
CAS 297743-73-8C18H21ClN2O3
![3-(5-Chloro-2-oxobenzo[d]oxazol-3(2H)-yl)-N-(2-(cyclohex-1-en-1-yl)ethyl)propanamide chemical structure, C18H21ClN2O3, CAS 902253-51-4](/s/SFCCOKVFAHZPEV-UHFFFAOYSA-N.svg)
3-(5-Chloro-2-oxobenzo[d]oxazol-3(2H)-yl)-N-(2-(cyclohex-1-en-1-yl)ethyl)propanamide
CAS 902253-51-4C18H21ClN2O3
![N-(3-Chlorophenyl)-N-[(5-methyl-1,3-dioxooctahydro-2H-isoindol-2-yl)methyl]acetamide chemical structure, C18H21ClN2O3, CAS 474376-92-6](/s/RAVZPKQROICIAF-UHFFFAOYSA-N.svg)
N-(3-Chlorophenyl)-N-[(5-methyl-1,3-dioxooctahydro-2H-isoindol-2-yl)methyl]acetamide
CAS 474376-92-6C18H21ClN2O3
3,4-Dimethoxy-N-(1,2,3,4-tetrahydroisoquinolin-5-yl)benzene-1-carboximidic acid--hydrogen chloride (1/1)
CAS 37481-26-8C18H21ClN2O3
Ethyl 2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-6-methylnicotinate
CAS 113994-36-8C18H21ClN2O3
![Ethyl 4-[(3-chloro-2-methylphenyl)carbamoyl]-1,3,5-trimethyl-1H-pyrrole-2-carboxylate chemical structure, C18H21ClN2O3, CAS 847463-52-9](/s/UEIOVKGJYOCGOH-UHFFFAOYSA-N.svg)
Ethyl 4-[(3-chloro-2-methylphenyl)carbamoyl]-1,3,5-trimethyl-1H-pyrrole-2-carboxylate
CAS 847463-52-9C18H21ClN2O3
![8-Chloro-7-hydroxy-6-[(4-methylpiperazin-1-yl)methyl]-2,3-dihydrocyclopenta[c]chromen-4(1H)-one chemical structure, C18H21ClN2O3, CAS 710947-70-9](/s/BFNXVPPMWRLXJL-UHFFFAOYSA-N.svg)
8-Chloro-7-hydroxy-6-[(4-methylpiperazin-1-yl)methyl]-2,3-dihydrocyclopenta[c]chromen-4(1H)-one
CAS 710947-70-9C18H21ClN2O3
2-Chloro-N-cyclohexyl-N-(2,5-dioxo-1-phenylpyrrolidin-3-yl)acetamide
CAS 1858240-89-7C18H21ClN2O3
![N-[2-(4-tert-Butylphenoxy)ethyl]-5-chloro-2-nitroaniline chemical structure, C18H21ClN2O3, CAS 311766-83-3](/s/XNZWOJBHWRUGFZ-UHFFFAOYSA-N.svg)
N-[2-(4-tert-Butylphenoxy)ethyl]-5-chloro-2-nitroaniline
CAS 311766-83-3C18H21ClN2O3
6-Amino-2-methyl-4-(3-phenoxypropyl)-3,4-dihydro-2H-1,4-benzoxazin-3-one hydrochloride
CAS 1215601-35-6C18H21ClN2O3
- 2-(2-Chlorophenyl)-N-(2-(furan-2-yl)-2-morpholinoethyl)acetamide1208684-87-0C18H21ClN2O3
- 1-(2-(2-Chlorophenyl)-2-methoxyethyl)-3-(2-phenoxyethyl)urea1795442-60-2C18H21ClN2O3
- (S)-tert-Butyl 3-((3-chloroisoquinolin-1-yl)oxy)pyrrolidine-1-carboxylate1627603-87-5C18H21ClN2O3
- 5H-Benzopyrano(2,3-b)pyridin-5-one, 9-((diethylamino)methyl)-8-methoxy-, monohydrochloride52206-28-7C18H21ClN2O3
- 2-(2-Chloro-6-methoxy-4-{[(2-phenylethyl)amino]methyl}phenoxy)acetamide875001-82-4C18H21ClN2O3
- Ethyl 3-amino-6-chloro-2-(cyclohexylcarbonyl)-1H-indole-1-carboxylate220269-69-2C18H21ClN2O3
- Methyl {1-[(6-chloro-1H-indol-1-yl)acetyl]piperidin-4-yl}acetate1374516-85-4C18H21ClN2O3
- Methyl {1-[(4-chloro-1H-indol-1-yl)acetyl]piperidin-4-yl}acetate1374532-59-8C18H21ClN2O3
- 1-(2-(3-Chlorophenyl)-2-methoxypropyl)-3-(3-methoxyphenyl)urea1798545-15-9C18H21ClN2O3
- (9H-Fluoren-9-yl)methyl N-(3-aminopropoxy)carbamate hydrochloride2138079-00-0C18H21ClN2O3
- 1,3-Dimethyl-2-(2,4,5-trimethoxyphenyl)benzimidazol-3-ium, chloride468744-01-6C18H21ClN2O3
- 2-(2-Chloro-6-methoxy-4-{[(1-phenylethyl)amino]methyl}phenoxy)acetamide796887-44-0C18H21ClN2O3
- 5-Pyrimidineacetic acid, 6-chloro-2-(4-ethoxybenzyl)-4-methyl-, ethyl ester64678-05-3C18H21ClN2O3
- Propiophenone, 3-((alpha-methylphenethyl)amino)-4'-nitro-, monohydrochloride99249-88-4C18H21ClN2O3
- 3-Chloro-N-[2-(furan-2-yl)-2-(pyrrolidin-1-yl)ethyl]-4-methoxybenzamide919727-90-5C18H21ClN2O3
- 5-Chloro-N-{2-[4-(dimethylamino)phenyl]-2-hydroxyethyl}-2-methoxybenzamide1421529-24-9C18H21ClN2O3
- H-Phe-Phe-OH . HCl68800-30-6C18H21ClN2O3
- 1-(2-Chlorophenyl)-3-(2-(2-hydroxyethoxy)-2-(p-tolyl)ethyl)urea1798540-74-5C18H21ClN2O3
- 1-(3-(3-Chlorophenyl)-3-hydroxypropyl)-3-(2-phenoxyethyl)urea2034351-98-7C18H21ClN2O3
- 3-(3-Chlorophenyl)-N-(2-(4-methoxy-6-methyl-2-oxopyridin-1(2H)-yl)ethyl)propanamide2034246-38-1C18H21ClN2O3
- N-(2-(7-Chloro-3-oxo-2,3-dihydrobenzo[f][1,4]oxazepin-4(5H)-yl)ethyl)cyclohex-3-enecarboxamide2034552-00-4C18H21ClN2O3
- 1-(9-Chloro-3,4-dihydro-2H-1,5-benzodioxepine-7-carbonyl)-4-(prop-2-yn-1-yl)-1,4-diazepane2094260-49-6C18H21ClN2O3
- 2-(2-Chloro-6-methoxy-4-{[(4-methylbenzyl)amino]methyl}phenoxy)acetamide881441-93-6C18H21ClN2O3
- 2-(4-Chloro-2-propanoylphenoxy)-N-(1-cyanocyclohexyl)acetamide931053-47-3C18H21ClN2O3
- (5-Chloro-3-methyl-1-benzofuran-2-yl)(8-methyl-1-oxa-4,8-diazaspiro[4.5]dec-4-yl)methanone942849-60-7C18H21ClN2O3
- N-[(2-Chlorophenyl)methyl]-2-{[2-(2-methoxyphenoxy)ethyl]amino}acetamide875461-63-5C18H21ClN2O3
- tert-Butyl[3-(2-amino-5-chlorophenoxy)benzyl]carbamate266368-58-5C18H21ClN2O3
- [(1-Cyanocyclohexyl)carbamoyl]methyl 3-(2-chlorophenyl)propanoate1240746-16-0C18H21ClN2O3
- 2-Chloro-N-[2-(3,4-diethoxyphenyl)ethyl]pyridine-4-carboxamide1030693-04-9C18H21ClN2O3
- 1-[(1-Cyano-1,2-dimethylpropyl)carbamoyl]ethyl 3-(2-chlorophenyl)prop-2-enoate1211994-71-6C18H21ClN2O3
- 2-Chloro-N-[1-(3-methoxy-4-propoxyphenyl)ethyl]pyridine-4-carboxamide1223478-73-6C18H21ClN2O3
- [4-(6-Chloro-5-isopropyl-pyridazin-3-yloxy)-3,5-dimethyl-phenyl]-acetic acid methyl ester920509-08-6C18H21ClN2O3
- 1-[3-(3-Chlorophenyl)-3-hydroxypropyl]-3-(2-ethoxyphenyl)urea2034257-88-8C18H21ClN2O3
- 1-{4-[3-(2-Chlorophenoxy)azetidine-1-carbonyl]piperidin-1-yl}prop-2-en-1-one2411247-84-0C18H21ClN2O3
- tert-Butyl 4-(7-chloro-2-oxo-1H-indol-3-ylidene)piperidine-1-carboxylate2470437-84-2C18H21ClN2O3
- N'-{4-[2-Chloro-2-(3-methoxyphenyl)ethoxy]phenyl}-N,N-dimethylurea88971-75-9C18H21ClN2O3
- N'-{3-[2-Chloro-2-(3-methoxyphenyl)ethoxy]phenyl}-N,N-dimethylurea88971-84-0C18H21ClN2O3
- 1-((2-(2-Chloro-6-methylphenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxylic acid1842323-89-0C18H21ClN2O3
- tert-Butyl N-[2-(1-chloroisoquinolin-3-yl)-1-oxopropan-2-yl]-N-methylcarbamate2228692-40-6C18H21ClN2O3
- tert-Butyl 4-(5-chloro-2-oxo-2,3-dihydro-1H-indol-3-ylidene)piperidine-1-carboxylate1613053-73-8C18H21ClN2O3
- tert-Butyl N-[2-(2-chloroquinolin-3-yl)-1-oxopropan-2-yl]-N-methylcarbamate2228380-44-5C18H21ClN2O3
- tert-Butyl N-[2-(7-chloroquinolin-8-yl)-1-oxopropan-2-yl]-N-methylcarbamate2228760-99-2C18H21ClN2O3
- Benzyl N-(4-chloro-3-{[(2-hydroxyethyl)(methyl)amino]methyl}phenyl)carbamate2680684-02-8C18H21ClN2O3
- 3-(((5-Nitro-[1,1'-biphenyl]-2-yl)oxy)methyl)piperidine hydrochloride3078334-21-8C18H21ClN2O3
- 1-(3-Chloro-4-methoxyphenyl)-4-(cyclohexylmethyl)-1,2,3,4-tetrahydropyrazine-2,3-dione3030827-20-1C18H21ClN2O3
- Methyl 3-[1-(5-chloro-1H-indole-2-carbonyl)piperidin-4-yl]propanoate1242429-69-1C18H21ClN2O3
- tert-Butyl 3-[(5-chloroquinolin-8-yl)oxymethyl]azetidine-1-carboxylate1332301-63-9C18H21ClN2O3
- N-[2-(Dimethylamino)ethyl]-7-methyldibenzo-p-dioxin-1-carboxamide, hydrochloride137944-64-0C18H21ClN2O3
Frequently asked questions
What is the molar mass of C18H21ClN2O3?
The molar mass of C18H21ClN2O3 is 348.83 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 chlorine atom, 2 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 348.1241 Da.
How many compounds have the formula C18H21ClN2O3?
CompoundList lists 72 compounds with the molecular formula C18H21ClN2O3, including 5-(5-(2-Chloro-4-(4,5-dihydro-2-oxazolyl)phenoxy)pentyl)-3-methylisoxazole, [2-(1-Adamantylamino)-2-oxoethyl] 2-chloropyridine-3-carboxylate, [5-[(4-Chlorophenoxy)methyl]furan-2-yl]-(4-ethylpiperazin-1-yl)methanone. 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 C18H21ClN2O3?
C18H21ClN2O3 has a degree of unsaturation of 9. 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.