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Molecular formula

C18H11ClO3

21 compounds have this formula on CompoundList.

Molar mass
310.73g/mol
Monoisotopic mass
310.0397Da
Atoms
33
Elements
4
Rings plus double bonds
13

The formula C18H11ClO3 describes a molecule made of 18 carbon atoms, 11 hydrogen atoms, 1 chlorine atom 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 × 1869.58%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 113.57%
    1.008 × 11 = 11.088 g/mol
  • Cl Chlorine × 111.41%
    35.45 × 1 = 35.450 g/mol
  • O Oxygen × 315.45%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C18H11ClO3

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

Showing 1 to 21 of 21 compounds

3-(4-Chlorophenyl)-5-methyl-7H-furo[3,2-g]chromen-7-one chemical structure, C18H11ClO3, CAS 374759-18-9
3-(4-Chlorophenyl)-5-methyl-7H-furo[3,2-g]chromen-7-one
CAS 374759-18-9C18H11ClO3
2H-1-Benzopyran-2-one, 4-(5-chloro-2-benzofuranyl)-7-methyl- chemical structure, C18H11ClO3, CAS 108154-47-8
2H-1-Benzopyran-2-one, 4-(5-chloro-2-benzofuranyl)-7-methyl-
CAS 108154-47-8C18H11ClO3
2H-1-Benzopyran-2-one, 4-(5-chloro-2-benzofuranyl)-6-methyl- chemical structure, C18H11ClO3, CAS 108154-43-4
2H-1-Benzopyran-2-one, 4-(5-chloro-2-benzofuranyl)-6-methyl-
CAS 108154-43-4C18H11ClO3
Mao-B-IN-2 chemical structure, C18H11ClO3, CAS 1253978-24-3
Mao-B-IN-2
CAS 1253978-24-3C18H11ClO3
(E)-3-(3-(4-Chlorophenyl)acryloyl)-2H-chromen-2-one chemical structure, C18H11ClO3, CAS 140399-52-6
(E)-3-(3-(4-Chlorophenyl)acryloyl)-2H-chromen-2-one
CAS 140399-52-6C18H11ClO3
4-(1-Benzofuran-2-yl)-6-chloro-7-methyl-2H-chromen-2-one chemical structure, C18H11ClO3, CAS 896806-52-3
4-(1-Benzofuran-2-yl)-6-chloro-7-methyl-2H-chromen-2-one
CAS 896806-52-3C18H11ClO3
6-Chloro-4-(3-methylbenzofuran-2-yl)-2H-chromen-2-one chemical structure, C18H11ClO3, CAS 896599-13-6
6-Chloro-4-(3-methylbenzofuran-2-yl)-2H-chromen-2-one
CAS 896599-13-6C18H11ClO3
2H-1-Benzopyran-2-one, 6-chloro-4-(5-methyl-2-benzofuranyl)- chemical structure, C18H11ClO3, CAS 108154-55-8
2H-1-Benzopyran-2-one, 6-chloro-4-(5-methyl-2-benzofuranyl)-
CAS 108154-55-8C18H11ClO3
2H-1-Benzopyran-2-one, 7-chloro-4-(5-methyl-2-benzofuranyl)- chemical structure, C18H11ClO3, CAS 108154-59-2
2H-1-Benzopyran-2-one, 7-chloro-4-(5-methyl-2-benzofuranyl)-
CAS 108154-59-2C18H11ClO3
2H-1-Benzopyran-2-one, 3-[3-(4-chlorophenyl)-1-oxo-2-propenyl]- chemical structure, C18H11ClO3, CAS 91527-67-2
2H-1-Benzopyran-2-one, 3-[3-(4-chlorophenyl)-1-oxo-2-propenyl]-
CAS 91527-67-2C18H11ClO3
6-Chloro-3-[(2E)-3-phenylprop-2-enoyl]-2H-chromen-2-one chemical structure, C18H11ClO3, CAS 159760-51-7
6-Chloro-3-[(2E)-3-phenylprop-2-enoyl]-2H-chromen-2-one
CAS 159760-51-7C18H11ClO3
2-(1-Chloronaphthalene-2-carbonyl)benzoic acid chemical structure, C18H11ClO3, CAS 855471-67-9
2-(1-Chloronaphthalene-2-carbonyl)benzoic acid
CAS 855471-67-9C18H11ClO3
2-(5-Chloronaphthalene-1-carbonyl)benzoic acid chemical structure, C18H11ClO3, CAS 5018-89-3
2-(5-Chloronaphthalene-1-carbonyl)benzoic acid
CAS 5018-89-3C18H11ClO3
2-(2-Chlorobenzoyl)naphthalene-1-carboxylic acid chemical structure, C18H11ClO3, CAS 7496-00-6
2-(2-Chlorobenzoyl)naphthalene-1-carboxylic acid
CAS 7496-00-6C18H11ClO3
2-(3-Chlorobenzoyl)naphthalene-1-carboxylic acid chemical structure, C18H11ClO3, CAS 7496-01-7
2-(3-Chlorobenzoyl)naphthalene-1-carboxylic acid
CAS 7496-01-7C18H11ClO3
2-(7-Chloronaphthalene-1-carbonyl)benzoic acid chemical structure, C18H11ClO3, CAS 60786-52-9
2-(7-Chloronaphthalene-1-carbonyl)benzoic acid
CAS 60786-52-9C18H11ClO3
3-[3-(2-Chlorophenyl)acryloyl]-2H-1-benzopyran-2-one chemical structure, C18H11ClO3, CAS 91527-66-1
3-[3-(2-Chlorophenyl)acryloyl]-2H-1-benzopyran-2-one
CAS 91527-66-1C18H11ClO3
4-Chloro-2H,4'H-[2,3'-bi-1-benzopyran]-4'-one chemical structure, C18H11ClO3, CAS 106129-87-7
4-Chloro-2H,4'H-[2,3'-bi-1-benzopyran]-4'-one
CAS 106129-87-7C18H11ClO3
2-[3-(4-Chlorophenyl)acryloyl]-1H-indene-1,3(2H)-dione chemical structure, C18H11ClO3, CAS 52679-64-8
2-[3-(4-Chlorophenyl)acryloyl]-1H-indene-1,3(2H)-dione
CAS 52679-64-8C18H11ClO3
8-Chloro-1-methyl-3-phenyl-4H-furo[3,4-c][1]benzopyran-4-one chemical structure, C18H11ClO3, CAS 922503-18-2
8-Chloro-1-methyl-3-phenyl-4H-furo[3,4-c][1]benzopyran-4-one
CAS 922503-18-2C18H11ClO3
3-[3-(4-Chlorophenyl)-3-oxoprop-1-en-1-yl]-4H-1-benzopyran-4-one chemical structure, C18H11ClO3, CAS 59431-44-6
3-[3-(4-Chlorophenyl)-3-oxoprop-1-en-1-yl]-4H-1-benzopyran-4-one
CAS 59431-44-6C18H11ClO3

Frequently asked questions

What is the molar mass of C18H11ClO3?

The molar mass of C18H11ClO3 is 310.73 g/mol, calculated from standard atomic weights for 18 carbon atoms, 11 hydrogen atoms, 1 chlorine atom and 3 oxygen atoms. The monoisotopic mass is 310.0397 Da.

How many compounds have the formula C18H11ClO3?

CompoundList lists 21 compounds with the molecular formula C18H11ClO3, including 3-(4-Chlorophenyl)-5-methyl-7H-furo[3,2-g]chromen-7-one, 2H-1-Benzopyran-2-one, 4-(5-chloro-2-benzofuranyl)-7-methyl-, 2H-1-Benzopyran-2-one, 4-(5-chloro-2-benzofuranyl)-6-methyl-. 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 C18H11ClO3?

C18H11ClO3 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.