Molecular formula

C₁₈H₂₀O₇

34 compounds have this formula on CompoundList.

Molar mass: 348.35g/mol
Monoisotopic mass: 348.1209Da
Atoms: 45
Elements: 3
Rings plus double bonds: 9

The formula C18H20O7 describes a molecule made of 18 carbon atoms, 20 hydrogen atoms and 7 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 × 1862.06%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 205.79%
1.008 × 20 = 20.160 g/mol
O Oxygen × 732.15%
15.999 × 7 = 111.993 g/mol

Look up another formula

Compounds with the formula C18H20O7

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

Showing 1 to 34 of 34 compounds

(R)-tert-OMe-byakangelicin

CAS 89560-97-4C₁₈H₂₀O₇

15-O-Desmethyl-(5Z)-7-oxozeaenol

CAS 603986-56-7C₁₈H₂₀O₇

rel-4-[(1R,2S)-2-Hydroxy-2-(4-hydroxy-3-methoxyphenyl)-1-(hydroxymethyl)ethoxy]-3-methoxybenzaldehyde

CAS 79389-53-0C₁₈H₂₀O₇

Divaricataester B

CAS 1049708-13-5C₁₈H₂₀O₇

6,7-Dimethoxydihydrolindbladione

CAS 581102-04-7C₁₈H₂₀O₇

Phomosine D

CAS 874918-37-3C₁₈H₂₀O₇

Glucose-1-(1-naphthalene)acetate

CAS 40681-78-5C₁₈H₂₀O₇

Paraphaeosphaerin C

CAS 910645-70-4C₁₈H₂₀O₇

5'-Hydroxymonocillin III

CAS 1004540-69-5C₁₈H₂₀O₇

4'-Methoxyisoagarotetrol

CAS 104901-10-2C₁₈H₂₀O₇

4'-Methoxyagarotetrol

CAS 123278-01-3C₁₈H₂₀O₇

Methyl [7-(2-ethoxy-2-oxoethoxy)-4,8-dimethyl-2-oxo-2H-chromen-3-yl]acetate

CAS 694506-93-9C₁₈H₂₀O₇

$2,5,12,15,18-Pentaoxatricyclo[17.4.0.0^{6,11}]tricosa-1(19),6(11),7,9,20,22-hexaene-9,21-diol chemical structure, C18H20O7, CAS 296279-69-1$

2,5,12,15,18-Pentaoxatricyclo[17.4.0.0^{6,11}]tricosa-1(19),6(11),7,9,20,22-hexaene-9,21-diol

CAS 296279-69-1C₁₈H₂₀O₇

Aquilarone C

CAS 1404479-46-4C₁₈H₂₀O₇

Propan-2-yl {[3-(2-methoxy-2-oxoethyl)-4-methyl-2-oxo-2H-chromen-7-yl]oxy}acetate

CAS 694501-50-3C₁₈H₂₀O₇

tert-OMe-byakangelicin

CAS 79638-04-3C₁₈H₂₀O₇

Bis(3,4-dimethoxyphenyl)(hydroxy)acetic acid

CAS 4936-02-1C₁₈H₂₀O₇

Ethyl 4-(7-acetyl-4,6-dihydroxy-3,5-dimethyl-1-benzofuran-2-yl)-3-oxobutanoate

CAS 52889-75-5C₁₈H₂₀O₇

Ethyl 3-[7-(2-methoxy-2-oxoethoxy)-4-methyl-2-oxochromen-3-yl]propanoate

CAS 858752-84-8C₁₈H₂₀O₇

Methyl 2-{[3-(2-methoxy-2-oxoethyl)-4,8-dimethyl-2-oxo-2H-chromen-7-yl]oxy}propanoate

CAS 858757-80-9C₁₈H₂₀O₇

2-Naphthalenecarboxylic acid, 4-(acetyloxy)-6,7,8-trimethoxy-, ethyl ester

CAS 133239-92-6C₁₈H₂₀O₇

1-(2,4-Dihydroxy-5-methoxyphenyl)-2-(4-hydroxyphenyl)-3,3-dimethoxy-1-propanone

CAS 58115-20-1C₁₈H₂₀O₇

(4S,5R,6R,7E,10aR)-5,6-Diethyl-5,6,10a,11-tetrahydro-4-hydroxy-10a-methyl-1H-cyclonona(1,2-c:4,5-c')difuran-1,3,8,10(4H)-tetrone

CAS 745-10-8C₁₈H₂₀O₇

6-Methoxy-3-(6-methoxy-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-5-yl)chromen-2-one

CAS 80786-25-0C₁₈H₂₀O₇

Frequently asked questions

Still have a question?

The help centre explains buying, quotes and supplier badges step by step, or you can write to our team.

Help centre Contact us

What is the molar mass of C18H20O7?

The molar mass of C18H20O7 is 348.35 g/mol, calculated from standard atomic weights for 18 carbon atoms, 20 hydrogen atoms and 7 oxygen atoms. The monoisotopic mass is 348.1209 Da.

How many compounds have the formula C18H20O7?

CompoundList lists 34 compounds with the molecular formula C18H20O7, including (R)-tert-OMe-byakangelicin, 15-O-Desmethyl-(5Z)-7-oxozeaenol, rel-4-[(1R,2S)-2-Hydroxy-2-(4-hydroxy-3-methoxyphenyl)-1-(hydroxymethyl)ethoxy]-3-methoxybenzaldehyde. 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 C18H20O7?

C18H20O7 has a degree of unsaturation of 9. 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.