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Molecular formula

C21H16ClNO5

16 compounds have this formula on CompoundList.

Molar mass
397.81g/mol
Monoisotopic mass
397.0717Da
Atoms
44
Elements
5
Rings plus double bonds
14

The formula C21H16ClNO5 describes a molecule made of 21 carbon atoms, 16 hydrogen atoms, 1 chlorine atom, 1 nitrogen atom and 5 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 × 2163.40%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 164.05%
    1.008 × 16 = 16.128 g/mol
  • Cl Chlorine × 18.91%
    35.45 × 1 = 35.450 g/mol
  • N Nitrogen × 13.52%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 520.11%
    15.999 × 5 = 79.995 g/mol
Look up another formula

Compounds with the formula C21H16ClNO5

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

Showing 1 to 16 of 16 compounds

Ethyl 3-((3-chlorobenzoyl)amino)-2-oxo-6-phenyl-2H-pyran-5-carboxylate chemical structure, C21H16ClNO5, CAS 339009-30-2
Ethyl 3-((3-chlorobenzoyl)amino)-2-oxo-6-phenyl-2H-pyran-5-carboxylate
CAS 339009-30-2C21H16ClNO5
5-(3-Chlorophenyl)-1-(2-furylmethyl)-3-hydroxy-4-(5-methyl-2-furoyl)-1,5-dihydro-2H-pyrrol-2-one chemical structure, C21H16ClNO5, CAS 618373-70-9
5-(3-Chlorophenyl)-1-(2-furylmethyl)-3-hydroxy-4-(5-methyl-2-furoyl)-1,5-dihydro-2H-pyrrol-2-one
CAS 618373-70-9C21H16ClNO5
Ethyl 3-[(4-chlorobenzoyl)amino]-2-oxo-6-phenyl-2H-pyran-5-carboxylate chemical structure, C21H16ClNO5, CAS 338404-92-5
Ethyl 3-[(4-chlorobenzoyl)amino]-2-oxo-6-phenyl-2H-pyran-5-carboxylate
CAS 338404-92-5C21H16ClNO5
6-Chloro-8'-[(dimethylamino)methyl]-7'-hydroxy-2H,2'H-[3,4'-bichromene]-2,2'-dione chemical structure, C21H16ClNO5, CAS 869079-10-7
6-Chloro-8'-[(dimethylamino)methyl]-7'-hydroxy-2H,2'H-[3,4'-bichromene]-2,2'-dione
CAS 869079-10-7C21H16ClNO5
Chelirubine chloride chemical structure, C21H16ClNO5, CAS 30044-85-0
Chelirubine chloride
CAS 30044-85-0C21H16ClNO5
4-(Aminomethyl)-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one hydrochloride chemical structure, C21H16ClNO5, CAS 91539-64-9
4-(Aminomethyl)-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one hydrochloride
CAS 91539-64-9C21H16ClNO5
Ethyl 2-amino-4-(3-chlorophenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carboxylate chemical structure, C21H16ClNO5, CAS 326919-56-6
Ethyl 2-amino-4-(3-chlorophenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carboxylate
CAS 326919-56-6C21H16ClNO5
Methyl 4-(7-chloro-2,6-dimethyl-3,9-dioxo-1,2,3,9-tetrahydrochromeno[2,3-c]pyrrol-1-yl)benzoate chemical structure, C21H16ClNO5, CAS 886156-64-5
Methyl 4-(7-chloro-2,6-dimethyl-3,9-dioxo-1,2,3,9-tetrahydrochromeno[2,3-c]pyrrol-1-yl)benzoate
CAS 886156-64-5C21H16ClNO5
[4-(4-Methylphenoxy)-3-nitrophenyl]methyl 4-chlorobenzoate chemical structure, C21H16ClNO5, CAS 338960-81-9
[4-(4-Methylphenoxy)-3-nitrophenyl]methyl 4-chlorobenzoate
CAS 338960-81-9C21H16ClNO5
5-(Aminomethyl)-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one hydrochloride chemical structure, C21H16ClNO5, CAS 141749-41-9
5-(Aminomethyl)-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one hydrochloride
CAS 141749-41-9C21H16ClNO5
6-Chloro-N,N-bis(furan-2-ylmethyl)-7-methyl-4-oxo-4H-chromene-2-carboxamide chemical structure, C21H16ClNO5, CAS 912893-44-8
6-Chloro-N,N-bis(furan-2-ylmethyl)-7-methyl-4-oxo-4H-chromene-2-carboxamide
CAS 912893-44-8C21H16ClNO5
N-(4-Acetylphenyl)-5-((4-chlorobenzyl)oxy)-4-oxo-4H-pyran-2-carboxamide chemical structure, C21H16ClNO5, CAS 1219542-18-3
N-(4-Acetylphenyl)-5-((4-chlorobenzyl)oxy)-4-oxo-4H-pyran-2-carboxamide
CAS 1219542-18-3C21H16ClNO5
4-(3-Chloro-5-ethoxy-4-hydroxyphenyl)-2-oxo-3-(quinolin-2-yl)but-3-enoic acid chemical structure, C21H16ClNO5, CAS 1147301-68-5
4-(3-Chloro-5-ethoxy-4-hydroxyphenyl)-2-oxo-3-(quinolin-2-yl)but-3-enoic acid
CAS 1147301-68-5C21H16ClNO5
Benzamide,N-[3-(1,3-benzodioxol-5-ylmethoxy)phenyl]-5-chloro-2-hydroxy- chemical structure, C21H16ClNO5, CAS 648923-20-0
Benzamide,N-[3-(1,3-benzodioxol-5-ylmethoxy)phenyl]-5-chloro-2-hydroxy-
CAS 648923-20-0C21H16ClNO5
2-{[(Benzyloxy)carbonyl]amino}-5-(4-chlorophenoxy)benzoic acid chemical structure, C21H16ClNO5, CAS 2639421-03-5
2-{[(Benzyloxy)carbonyl]amino}-5-(4-chlorophenoxy)benzoic acid
CAS 2639421-03-5C21H16ClNO5
3-{[(Benzyloxy)carbonyl]amino}-4-(4-chlorophenoxy)benzoic acid chemical structure, C21H16ClNO5, CAS 2639433-28-4
3-{[(Benzyloxy)carbonyl]amino}-4-(4-chlorophenoxy)benzoic acid
CAS 2639433-28-4C21H16ClNO5

Frequently asked questions

What is the molar mass of C21H16ClNO5?

The molar mass of C21H16ClNO5 is 397.81 g/mol, calculated from standard atomic weights for 21 carbon atoms, 16 hydrogen atoms, 1 chlorine atom, 1 nitrogen atom and 5 oxygen atoms. The monoisotopic mass is 397.0717 Da.

How many compounds have the formula C21H16ClNO5?

CompoundList lists 16 compounds with the molecular formula C21H16ClNO5, including Ethyl 3-((3-chlorobenzoyl)amino)-2-oxo-6-phenyl-2H-pyran-5-carboxylate, 5-(3-Chlorophenyl)-1-(2-furylmethyl)-3-hydroxy-4-(5-methyl-2-furoyl)-1,5-dihydro-2H-pyrrol-2-one, Ethyl 3-[(4-chlorobenzoyl)amino]-2-oxo-6-phenyl-2H-pyran-5-carboxylate. 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 C21H16ClNO5?

C21H16ClNO5 has a degree of unsaturation of 14. 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.