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Molecular formula

C21H21Cl2N3O3

17 compounds have this formula on CompoundList.

Molar mass
434.32g/mol
Monoisotopic mass
433.0960Da
Atoms
50
Elements
5
Rings plus double bonds
12

The formula C21H21Cl2N3O3 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 2 chlorine atoms, 3 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 × 2158.08%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 214.87%
    1.008 × 21 = 21.168 g/mol
  • Cl Chlorine × 216.32%
    35.45 × 2 = 70.900 g/mol
  • N Nitrogen × 39.68%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 311.05%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C21H21Cl2N3O3

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

Showing 1 to 17 of 17 compounds

Fenaminstrobin chemical structure, C21H21Cl2N3O3, CAS 366815-39-6
Fenaminstrobin
CAS 366815-39-6C21H21Cl2N3O3
1-(3,4-Dichlorophenyl)-3-[4-(3-methoxyphenyl)piperazin-1-yl]pyrrolidine-2,5-dione chemical structure, C21H21Cl2N3O3, CAS 499211-01-7
1-(3,4-Dichlorophenyl)-3-[4-(3-methoxyphenyl)piperazin-1-yl]pyrrolidine-2,5-dione
CAS 499211-01-7C21H21Cl2N3O3
1-(3,4-Dichlorophenyl)-3-[4-(2-methoxyphenyl)piperazin-1-yl]pyrrolidine-2,5-dione chemical structure, C21H21Cl2N3O3, CAS 331759-52-5
1-(3,4-Dichlorophenyl)-3-[4-(2-methoxyphenyl)piperazin-1-yl]pyrrolidine-2,5-dione
CAS 331759-52-5C21H21Cl2N3O3
6-O-Desmethoxyethyl-6-O-chloroethyl Erlotinib Hydrochloride chemical structure, C21H21Cl2N3O3, CAS 183320-04-9
6-O-Desmethoxyethyl-6-O-chloroethyl Erlotinib Hydrochloride
CAS 183320-04-9C21H21Cl2N3O3
1-(3,5-Dichlorophenyl)-3-[4-(2-methoxyphenyl)piperazin-1-yl]pyrrolidine-2,5-dione chemical structure, C21H21Cl2N3O3, CAS 333398-90-6
1-(3,5-Dichlorophenyl)-3-[4-(2-methoxyphenyl)piperazin-1-yl]pyrrolidine-2,5-dione
CAS 333398-90-6C21H21Cl2N3O3
5-(3,4-Dichlorophenyl)-1-(3-(dimethylamino)propyl)-3-hydroxy-4-isonicotinoyl-1H-pyrrol-2(5H)-one chemical structure, C21H21Cl2N3O3, CAS 627475-52-9
5-(3,4-Dichlorophenyl)-1-(3-(dimethylamino)propyl)-3-hydroxy-4-isonicotinoyl-1H-pyrrol-2(5H)-one
CAS 627475-52-9C21H21Cl2N3O3
[7-(2-Chloro-ethoxy)-6-(2-methoxy-ethoxy)-quinazolin-4-yl]-(3-ethynyl-phenyl)-amine Hydrochloride chemical structure, C21H21Cl2N3O3, CAS 183320-19-6
[7-(2-Chloro-ethoxy)-6-(2-methoxy-ethoxy)-quinazolin-4-yl]-(3-ethynyl-phenyl)-amine Hydrochloride
CAS 183320-19-6C21H21Cl2N3O3
1-(3,5-Dichlorophenyl)-3-[4-(4-methoxyphenyl)piperazin-1-yl]pyrrolidine-2,5-dione chemical structure, C21H21Cl2N3O3, CAS 361995-92-8
1-(3,5-Dichlorophenyl)-3-[4-(4-methoxyphenyl)piperazin-1-yl]pyrrolidine-2,5-dione
CAS 361995-92-8C21H21Cl2N3O3
2-(2,4-Dichlorophenoxy)-N-(furan-2-ylmethyl)-N-((1-methyl-1,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)methyl)acetamide chemical structure, C21H21Cl2N3O3, CAS 1795443-05-8
2-(2,4-Dichlorophenoxy)-N-(furan-2-ylmethyl)-N-((1-methyl-1,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)methyl)acetamide
CAS 1795443-05-8C21H21Cl2N3O3
4-(2,4-Dichlorophenoxy)-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)butanamide chemical structure, C21H21Cl2N3O3, CAS 409338-39-2
4-(2,4-Dichlorophenoxy)-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)butanamide
CAS 409338-39-2C21H21Cl2N3O3
Fenaminstrobin (E/Z mixture) chemical structure, C21H21Cl2N3O3, CAS 353736-75-1
Fenaminstrobin (E/Z mixture)
CAS 353736-75-1C21H21Cl2N3O3
4-[3-(2,6-Dichlorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]-N-(2-methylbutan-2-yl)-1H-pyrrole-2-carboxamide chemical structure, C21H21Cl2N3O3, CAS 478064-56-1
4-[3-(2,6-Dichlorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]-N-(2-methylbutan-2-yl)-1H-pyrrole-2-carboxamide
CAS 478064-56-1C21H21Cl2N3O3
3-((1-(2,4-Dichlorobenzyl)-3,5-dimethyl-1H-pyrazol-4-yl)carbamoyl)bicyclo[2.2.1]hept-5-ene-2-carboxylic acid chemical structure, C21H21Cl2N3O3, CAS 1052558-34-5
3-((1-(2,4-Dichlorobenzyl)-3,5-dimethyl-1H-pyrazol-4-yl)carbamoyl)bicyclo[2.2.1]hept-5-ene-2-carboxylic acid
CAS 1052558-34-5C21H21Cl2N3O3
3-((1-(2,6-Dichlorobenzyl)-3,5-dimethyl-1H-pyrazol-4-yl)carbamoyl)bicyclo[2.2.1]hept-5-ene-2-carboxylic acid chemical structure, C21H21Cl2N3O3, CAS 1052557-89-7
3-((1-(2,6-Dichlorobenzyl)-3,5-dimethyl-1H-pyrazol-4-yl)carbamoyl)bicyclo[2.2.1]hept-5-ene-2-carboxylic acid
CAS 1052557-89-7C21H21Cl2N3O3
1-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-3-(3,4-dichlorophenyl)urea chemical structure, C21H21Cl2N3O3, CAS 1172930-60-7
1-(5-Allyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-3-(3,4-dichlorophenyl)urea
CAS 1172930-60-7C21H21Cl2N3O3
1-Benzyl-N-(2-{[(2,4-dichlorophenyl)carbonyl]amino}ethyl)-5-oxopyrrolidine-3-carboxamide chemical structure, C21H21Cl2N3O3, CAS 1081148-17-5
1-Benzyl-N-(2-{[(2,4-dichlorophenyl)carbonyl]amino}ethyl)-5-oxopyrrolidine-3-carboxamide
CAS 1081148-17-5C21H21Cl2N3O3
Orb3236820 chemical structure, C21H21Cl2N3O3, CAS 3051815-40-5
Orb3236820
CAS 3051815-40-5C21H21Cl2N3O3

Frequently asked questions

What is the molar mass of C21H21Cl2N3O3?

The molar mass of C21H21Cl2N3O3 is 434.32 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 2 chlorine atoms, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 433.0960 Da.

How many compounds have the formula C21H21Cl2N3O3?

CompoundList lists 17 compounds with the molecular formula C21H21Cl2N3O3, including Fenaminstrobin, 1-(3,4-Dichlorophenyl)-3-[4-(3-methoxyphenyl)piperazin-1-yl]pyrrolidine-2,5-dione, 1-(3,4-Dichlorophenyl)-3-[4-(2-methoxyphenyl)piperazin-1-yl]pyrrolidine-2,5-dione. 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 C21H21Cl2N3O3?

C21H21Cl2N3O3 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.