Molecular formula

C₁₈H₂₂O₉

14 compounds have this formula on CompoundList.

Molar mass: 382.37g/mol
Monoisotopic mass: 382.1264Da
Atoms: 49
Elements: 3
Rings plus double bonds: 8

The formula C18H22O9 describes a molecule made of 18 carbon atoms, 22 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 × 1856.54%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 225.80%
1.008 × 22 = 22.176 g/mol
O Oxygen × 937.66%
15.999 × 9 = 143.991 g/mol

Look up another formula

Compounds with the formula C18H22O9

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

Showing 1 to 14 of 14 compounds

Ethyl chlorogenate

CAS 37123-66-3C₁₈H₂₂O₉

Uncinoside A

CAS 48215-55-0C₁₈H₂₂O₉

10-Epi-olguine

CAS 137893-86-8C₁₈H₂₂O₉

Olguine

CAS 73413-68-0C₁₈H₂₂O₉

8-Glucosyl-5,7-dihydroxy-2-isopropylchromone

CAS 188785-44-6C₁₈H₂₂O₉

Methyl 3-O-feruloylquinate

CAS 154418-15-2C₁₈H₂₂O₉

Methyl 5-O-feruloylquinate

CAS 154461-64-0C₁₈H₂₂O₉

Ningposide B

CAS 307318-00-9C₁₈H₂₂O₉

Methyl 4-O-feruloylquinate

CAS 195723-10-5C₁₈H₂₂O₉

Benzoic acid, 3,5-dihydroxy-, ethyl ester, hemihydrate

CAS 205534-89-0C₁₈H₂₂O₉

Butylphthalide metabolite M9-1, M9-2

CAS 1486519-56-5C₁₈H₂₂O₉

Butylphthalide metabolite M9-6

CAS 1293998-93-2C₁₈H₂₂O₉

alpha-D-Glucopyranoside, methyl, 2,3-diacetate 6-benzoate

CAS 29868-43-7C₁₈H₂₂O₉

5,7-Dihydroxy-2-propan-2-yl-8-[(3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]chromen-4-one

C₁₈H₂₂O₉

Frequently asked questions

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What is the molar mass of C18H22O9?

The molar mass of C18H22O9 is 382.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 22 hydrogen atoms and 9 oxygen atoms. The monoisotopic mass is 382.1264 Da.

How many compounds have the formula C18H22O9?

CompoundList lists 14 compounds with the molecular formula C18H22O9, including Ethyl chlorogenate, Uncinoside A, 10-Epi-olguine. 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 C18H22O9?

C18H22O9 has a degree of unsaturation of 8. 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.