Molecular formula

C₂₁H₁₈ClNO

21 compounds have this formula on CompoundList.

Molar mass: 335.83g/mol
Monoisotopic mass: 335.1077Da
Atoms: 42
Elements: 5
Rings plus double bonds: 13

The formula C21H18ClNO describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 1 chlorine atom, 1 nitrogen atom 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 × 2175.11%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 185.40%
1.008 × 18 = 18.144 g/mol
Cl Chlorine × 110.56%
35.45 × 1 = 35.450 g/mol
N Nitrogen × 14.17%
14.007 × 1 = 14.007 g/mol
O Oxygen × 14.76%
15.999 × 1 = 15.999 g/mol

Look up another formula

Compounds with the formula C21H18ClNO

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

Showing 1 to 21 of 21 compounds

N,N-Dibenzyl-3-chlorobenzamide

CAS 57409-24-2C₂₁H₁₈ClNO

N,N-Dibenzyl-2-chlorobenzamide

CAS 7465-70-5C₂₁H₁₈ClNO

1-[1,1'-Biphenyl]-4-yl-3-(4-chloroanilino)-1-propanone

CAS 279672-38-7C₂₁H₁₈ClNO

N-Benzhydryl-2-(4-chlorophenyl)acetamide

CAS 88229-42-9C₂₁H₁₈ClNO

7-Chloro-3,3-dimethyl-9-phenyl-3,4-dihydro-2H-acridin-1-one

CAS 851072-10-1C₂₁H₁₈ClNO

N-(3-Chloro-4-methylphenyl)-2,2-diphenylacetamide

CAS 70298-74-7C₂₁H₁₈ClNO

(2-Chloro-4-o-tolylamino-phenyl)-o-tolyl-methanone

CAS 344457-66-5C₂₁H₁₈ClNO

N,N-Dibenzyl-4-chlorobenzamide

CAS 7461-37-2C₂₁H₁₈ClNO

N-[2-(3-Chlorophenyl)ethyl]-4-phenylbenzamide

CAS 540531-63-3C₂₁H₁₈ClNO

N-(5-Chloro-2-methylphenyl)-2,2-diphenylacetamide

CAS 70298-73-6C₂₁H₁₈ClNO

1-Propanone, 3-[(4-chlorophenyl)amino]-1,3-diphenyl-

CAS 94864-08-1C₂₁H₁₈ClNO

(2-Chlorophenyl)-N-[(4-phenylphenyl)ethyl]carboxamide

CAS 296273-60-4C₂₁H₁₈ClNO

N-(2-Chlorobenzyl)-2,2-diphenylacetamide

CAS 443636-12-2C₂₁H₁₈ClNO

2-Chloro-N-(4-methylphenyl)-2,2-diphenylacetamide

CAS 32177-09-6C₂₁H₁₈ClNO

Benzeneacetamide, 2-chloro-N-(diphenylmethyl)-

CAS 88229-41-8C₂₁H₁₈ClNO

1-(4-Hydroxyphenyl)-2-(4-chlorophenyl)-1,2,3,4-tetrahydroquinoline

CAS 54197-56-7C₂₁H₁₈ClNO

3-(4-Methoxyphenyl)-1-methylbenzo[f]quinoline hydrochloride

CAS 5923-30-8C₂₁H₁₈ClNO

2-Chloro-N,N'-di-p-tolylbenzamide

CAS 66087-69-2C₂₁H₁₈ClNO

2-Chloro-N-(2-methylphenyl)-2,2-diphenylacetamide

CAS 52536-26-2C₂₁H₁₈ClNO

2-Chloro-4-(dibenzylamino)benzaldehyde

CAS 89115-16-2C₂₁H₁₈ClNO

5-(4-Chlorophenyl)-2,4-di(cyclohexa-1,4-dien-1-yl)-1,3-oxazole

CAS 55955-59-4C₂₁H₁₈ClNO

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 C21H18ClNO?

The molar mass of C21H18ClNO is 335.83 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 1 chlorine atom, 1 nitrogen atom and 1 oxygen atom. The monoisotopic mass is 335.1077 Da.

How many compounds have the formula C21H18ClNO?

CompoundList lists 21 compounds with the molecular formula C21H18ClNO, including N,N-Dibenzyl-3-chlorobenzamide, N,N-Dibenzyl-2-chlorobenzamide, 1-[1,1'-Biphenyl]-4-yl-3-(4-chloroanilino)-1-propanone. 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 C21H18ClNO?

C21H18ClNO 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.