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Molecular formula

C18H16O9

29 compounds have this formula on CompoundList.

Molar mass
376.32g/mol
Monoisotopic mass
376.0794Da
Atoms
43
Elements
3
Rings plus double bonds
11

The formula C18H16O9 describes a molecule made of 18 carbon atoms, 16 hydrogen atoms and 9 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 × 1857.45%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 164.29%
    1.008 × 16 = 16.128 g/mol
  • O Oxygen × 938.26%
    15.999 × 9 = 143.991 g/mol
Look up another formula

Compounds with the formula C18H16O9

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

Showing 1 to 29 of 29 compounds

(+)-Dibenzoyl-D-tartaric acid monohydrate chemical structure, C18H16O9, CAS 80822-15-7
(+)-Dibenzoyl-D-tartaric acid monohydrate
CAS 80822-15-7C18H16O9
5,7,3',4'-Tetrahydroxy-3,6,8-trimethoxyflavone chemical structure, C18H16O9, CAS 61451-85-2
5,7,3',4'-Tetrahydroxy-3,6,8-trimethoxyflavone
CAS 61451-85-2C18H16O9
3,5,7-Trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-6,8-dimethoxy-4H-1-benzopyran-4-one chemical structure, C18H16O9, CAS 549-10-0
3,5,7-Trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-6,8-dimethoxy-4H-1-benzopyran-4-one
CAS 549-10-0C18H16O9
Cyathuscavin B chemical structure, C18H16O9, CAS 1060705-84-1
Cyathuscavin B
CAS 1060705-84-1C18H16O9
Eleganketal A chemical structure, C18H16O9, CAS 1618091-96-5
Eleganketal A
CAS 1618091-96-5C18H16O9
O,O'-Dibenzoyl-(2R,3R)-tartaric acid monohydrate chemical structure, C18H16O9, CAS 62708-56-9
O,O'-Dibenzoyl-(2R,3R)-tartaric acid monohydrate
CAS 62708-56-9C18H16O9
Limnophilaspiroketone chemical structure, C18H16O9, CAS 862884-25-1
Limnophilaspiroketone
CAS 862884-25-1C18H16O9
5,7,4',5'-Tetrahydroxy-3,6,2'-trimethoxyflavone chemical structure, C18H16O9, CAS 113744-07-3
5,7,4',5'-Tetrahydroxy-3,6,2'-trimethoxyflavone
CAS 113744-07-3C18H16O9
5,7,3',4'-Tetrahydroxy-3,6,5'-trimethoxyflavone chemical structure, C18H16O9, CAS 74517-68-3
5,7,3',4'-Tetrahydroxy-3,6,5'-trimethoxyflavone
CAS 74517-68-3C18H16O9
5,6,7,4'-Tetrahydroxy-3,3',5'-trimethoxyflavone chemical structure, C18H16O9, CAS 72357-38-1
5,6,7,4'-Tetrahydroxy-3,3',5'-trimethoxyflavone
CAS 72357-38-1C18H16O9
5,7,3',5'-Tetrahydroxy-3,6,4'-trimethoxyflavone chemical structure, C18H16O9, CAS 71325-91-2
5,7,3',5'-Tetrahydroxy-3,6,4'-trimethoxyflavone
CAS 71325-91-2C18H16O9
5,7,2',5'-Tetrahydroxy-3,6,4'-trimethoxyflavone chemical structure, C18H16O9, CAS 99816-56-5
5,7,2',5'-Tetrahydroxy-3,6,4'-trimethoxyflavone
CAS 99816-56-5C18H16O9
3,5,7,3'-Tetrahydroxy-6,4',5'-trimethoxyflavone chemical structure, C18H16O9, CAS 139889-56-8
3,5,7,3'-Tetrahydroxy-6,4',5'-trimethoxyflavone
CAS 139889-56-8C18H16O9
5,7,3',6'-Tetrahydroxy-6,8,2'-trimethoxyflavone chemical structure, C18H16O9, CAS 160389-07-1
5,7,3',6'-Tetrahydroxy-6,8,2'-trimethoxyflavone
CAS 160389-07-1C18H16O9
5,7,3',4'-Tetrahydroxy-6,8,5'-trimethoxyflavone chemical structure, C18H16O9, CAS 147025-58-9
5,7,3',4'-Tetrahydroxy-6,8,5'-trimethoxyflavone
CAS 147025-58-9C18H16O9
5,7,2',4'-Tetrahydroxy-6,8,5'-trimethoxyflavone chemical structure, C18H16O9, CAS 102673-76-7
5,7,2',4'-Tetrahydroxy-6,8,5'-trimethoxyflavone
CAS 102673-76-7C18H16O9
Apuleisin chemical structure, C18H16O9, CAS 34211-15-9
Apuleisin
CAS 34211-15-9C18H16O9
5,7,2',4'-Tetrahydroxy-3,6,5'-trimethoxyflavone chemical structure, C18H16O9, CAS 99816-55-4
5,7,2',4'-Tetrahydroxy-3,6,5'-trimethoxyflavone
CAS 99816-55-4C18H16O9
Hibiscetin 3,7,4'-trimethyl ether chemical structure, C18H16O9, CAS 71149-61-6
Hibiscetin 3,7,4'-trimethyl ether
CAS 71149-61-6C18H16O9
Hibiscetin 3,8,4'-trimethyl ether chemical structure, C18H16O9, CAS 99816-54-3
Hibiscetin 3,8,4'-trimethyl ether
CAS 99816-54-3C18H16O9
5,7,2',4'-Tetrahydroxy-3,8,5'-trimethoxyflavone chemical structure, C18H16O9, CAS 100363-97-1
5,7,2',4'-Tetrahydroxy-3,8,5'-trimethoxyflavone
CAS 100363-97-1C18H16O9
5,6,3',4'-Tetrahydroxy-3,7,8-trimethoxyflavone chemical structure, C18H16O9, CAS 102487-39-8
5,6,3',4'-Tetrahydroxy-3,7,8-trimethoxyflavone
CAS 102487-39-8C18H16O9
3,5,3',4'-Tetrahydroxy-6,7,8-trimethoxyflavone chemical structure, C18H16O9, CAS 102673-79-0
3,5,3',4'-Tetrahydroxy-6,7,8-trimethoxyflavone
CAS 102673-79-0C18H16O9
(1S,13R,15S)-3,10-Dihydroxy-7-methoxy-13-methyl-5,8-dioxo-14,17-dioxatetracyclo[11.3.1.02,11.04,9]heptadeca-2(11),3,6,9-tetraene-15-carboxylic acid chemical structure, C18H16O9
(1S,13R,15S)-3,10-Dihydroxy-7-methoxy-13-methyl-5,8-dioxo-14,17-dioxatetracyclo[11.3.1.02,11.04,9]heptadeca-2(11),3,6,9-tetraene-15-carboxylic acid
C18H16O9

Frequently asked questions

What is the molar mass of C18H16O9?

The molar mass of C18H16O9 is 376.32 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms and 9 oxygen atoms. The monoisotopic mass is 376.0794 Da.

How many compounds have the formula C18H16O9?

CompoundList lists 29 compounds with the molecular formula C18H16O9, including (+)-Dibenzoyl-D-tartaric acid monohydrate, 5,7,3',4'-Tetrahydroxy-3,6,8-trimethoxyflavone, 3,5,7-Trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-6,8-dimethoxy-4H-1-benzopyran-4-one. 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 C18H16O9?

C18H16O9 has a degree of unsaturation of 11. 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.