Molecular formula

C₁₈H₂₁Cl₂N₃O

22 compounds have this formula on CompoundList.

Molar mass: 366.29g/mol
Monoisotopic mass: 365.1062Da
Atoms: 45
Elements: 5
Rings plus double bonds: 9

The formula C18H21Cl2N3O describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 2 chlorine atoms, 3 nitrogen atoms and 1 oxygen atom. 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 × 1859.02%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 215.78%
1.008 × 21 = 21.168 g/mol
Cl Chlorine × 219.36%
35.45 × 2 = 70.900 g/mol
N Nitrogen × 311.47%
14.007 × 3 = 42.021 g/mol
O Oxygen × 14.37%
15.999 × 1 = 15.999 g/mol

Look up another formula

Compounds with the formula C18H21Cl2N3O

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 22 of 22 compounds

2,2-Dichloro-N-[3,5-dimethyl-1-(2-methylbenzyl)-1H-pyrazol-4-yl]-1-methylcyclopropanecarboxamide

CAS 515121-37-6C₁₈H₂₁Cl₂N₃O

(1S)-2-(4-(Benzyloxy)phenyl)-1-(1H-imidazol-2-yl)ethan-1-amine dihydrochloride

CAS 2253619-46-2C₁₈H₂₁Cl₂N₃O

N-(2-(Dimethylamino)ethyl)-4-acridinecarboxamide dihydrochloride

CAS 89458-99-1C₁₈H₂₁Cl₂N₃O

3,4-Dichloro-N-[2-(1-methyl-1H-pyrrol-2-yl)-2-(pyrrolidin-1-yl)ethyl]benzamide

CAS 1049432-93-0C₁₈H₂₁Cl₂N₃O

Clodazon hydrochloride anhydrous

CAS 4913-61-5C₁₈H₂₁Cl₂N₃O

4(1H)-Quinazolinone, 2,3-dihydro-2-(4-chlorophenyl)-1-(2-(dimethylamino)ethyl)-, hydrochloride

CAS 3519-96-8C₁₈H₂₁Cl₂N₃O

4(1H)-Quinazolinone, 2,3-dihydro-7-chloro-1-(2-(dimethylamino)ethyl)-2-phenyl-, hydrochloride

CAS 3528-72-1C₁₈H₂₁Cl₂N₃O

1H-Indazole, 1-benzyl-5-chloro-3-(2-(dimethylamino)ethoxy)-, monohydrochloride

CAS 4585-78-8C₁₈H₂₁Cl₂N₃O

1H-Indazole, 1-(p-chlorobenzyl)-3-(2-(dimethylamino)ethoxy)-, monohydrochloride

CAS 1472-28-2C₁₈H₂₁Cl₂N₃O

1H-Indazole, 1-benzyl-6-chloro-3-(2-(dimethylamino)ethoxy)-, monohydrochloride

CAS 1472-38-4C₁₈H₂₁Cl₂N₃O

Urea, N-[4-[bis(2-chloroethyl)amino]-2-methylphenyl]-N'-phenyl-

CAS 76109-97-2C₁₈H₂₁Cl₂N₃O

N-(tert-Butyl)-1-(2,4-dichlorophenyl)-3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxamide

CAS 899960-35-1C₁₈H₂₁Cl₂N₃O

3,6-Dichloro-N-[2-(dimethylamino)ethyl]-N-(2-phenylethyl)pyridine-2-carboxamide

CAS 1210679-85-8C₁₈H₂₁Cl₂N₃O

(3-(3,4-Dihydroisoquinolin-2(1H)-yl)azetidin-1-yl)(pyridin-3-yl)methanone dihydrochloride

CAS 2034307-13-4C₁₈H₂₁Cl₂N₃O

3-(2,6-Dichlorophenyl)-1-[4-(1-methyl-1H-imidazol-5-yl)piperidin-1-yl]propan-1-one

CAS 2309313-20-8C₁₈H₂₁Cl₂N₃O

5H-Dibenzo(b,e)(1,4)diazepin-11-one, 10,11-dihydro-7-chloro-10-(2-(dimethylamino)ethyl)-5-methyl-, hydrochloride

CAS 1668-71-9C₁₈H₂₁Cl₂N₃O

5H-Dibenzo(b,e)(1,4)diazepin-11-one, 10,11-dihydro-8-chloro-10-(2-(dimethylamino)ethyl)-5-methyl-, hydrochloride

CAS 15496-52-3C₁₈H₂₁Cl₂N₃O

11H-Dibenzo(b,e)(1,4)diazepin-11-one, 5,10-dihydro-3-chloro-5-(3-(dimethylamino)propyl)-, hydrochloride

CAS 32038-67-8C₁₈H₂₁Cl₂N₃O

1H-Indazole,1-acetyl-5-[4-(1-amino-1-methylethyl)phenyl]-,dihydrochloride

CAS 850361-34-1C₁₈H₂₁Cl₂N₃O

1-Propanol, 3-[[4-[2-(2,5-dichlorophenyl)diazenyl]-3-methylphenyl]ethylamino]-

CAS 107627-43-0C₁₈H₂₁Cl₂N₃O

1-[(4-Chlorophenyl)methyl]-3-[3-(methylamino)propyl]-2,3-dihydro-1H-1,3-benzodiazol-2-one hydrochloride

CAS 2411237-51-7C₁₈H₂₁Cl₂N₃O

1-[(5-Cyclopropyl-1,2-oxazol-3-yl)methyl]-4-[(2,6-dichlorophenyl)methyl]piperazine

CAS 3054444-72-0C₁₈H₂₁Cl₂N₃O

Frequently asked questions

Still have a question?

The help centre explains buying, quotes and supplier badges step by step, or you can write to our team.

Help centre Contact us

What is the molar mass of C18H21Cl2N3O?

The molar mass of C18H21Cl2N3O is 366.29 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 2 chlorine atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 365.1062 Da.

How many compounds have the formula C18H21Cl2N3O?

CompoundList lists 22 compounds with the molecular formula C18H21Cl2N3O, including 2,2-Dichloro-N-[3,5-dimethyl-1-(2-methylbenzyl)-1H-pyrazol-4-yl]-1-methylcyclopropanecarboxamide, (1S)-2-(4-(Benzyloxy)phenyl)-1-(1H-imidazol-2-yl)ethan-1-amine dihydrochloride, N-(2-(Dimethylamino)ethyl)-4-acridinecarboxamide dihydrochloride. 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 C18H21Cl2N3O?

C18H21Cl2N3O 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.