Molecular formula
C18H20O3
318 compounds have this formula on CompoundList.
- Molar mass
- 284.35g/mol
- Monoisotopic mass
- 284.1412Da
- Atoms
- 41
- Elements
- 3
- Rings plus double bonds
- 9
The formula C18H20O3 describes a molecule made of 18 carbon atoms, 20 hydrogen 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 × 1876.03%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 207.09%1.008 × 20 = 20.160 g/mol
- O Oxygen × 316.88%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H20O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 318 compounds
Estra-1,5(10)-diene-3,4,17-trione
CAS 40551-34-6C18H20O3
3-Hydroxyestra-1,3,5(10)-triene-16,17-dione
CAS 1228-73-5C18H20O3
Tetrahydro-alpha-(1-naphthalenylmethyl)-2-furanpropanoic acid
CAS 25379-26-4C18H20O3
4-(4-tert-Butylphenoxymethyl)benzoic acid
CAS 132991-24-3C18H20O3
(-)-Minquartynoic acid
CAS 123154-43-8C18H20O3
Estra-1(10),4-diene-2,3,17-trione
CAS 40551-33-5C18H20O3
Bisdehydrodoisynolic acid
CAS 17659-88-0C18H20O3
![3-[4-(2-Methylbutan-2-yl)phenoxy]benzoic acid chemical structure, C18H20O3, CAS 74525-53-4](/s/JFXXHIZGJDHSSF-UHFFFAOYSA-N.svg)
3-[4-(2-Methylbutan-2-yl)phenoxy]benzoic acid
CAS 74525-53-4C18H20O3
4-((1E)-1-Ethyl-2-(4-hydroxyphenyl)-1-buten-1-yl)-1,2-benzenediol
CAS 71113-07-0C18H20O3
4-tert-Butylphenyl 4-methoxybenzoate
CAS 363599-46-6C18H20O3
4-tert-Butylphenyl 2-methoxybenzoate
CAS 81489-55-6C18H20O3
![Furan, 2,5-bis[1-(2-furanyl)-1-methylethyl]- chemical structure, C18H20O3, CAS 17920-89-7](/s/GYIYAKGWZREDCA-UHFFFAOYSA-N.svg)
Furan, 2,5-bis[1-(2-furanyl)-1-methylethyl]-
CAS 17920-89-7C18H20O3
(4balpha,10beta)-7-Hydroxy-1-methyl-8-methylenegibba-1,3,4a(10a)-triene-10-carboxylic acid
CAS 427-79-2C18H20O3
3-tert-Butyl-4-hydroxyphenyl phenylacetate
CAS 92943-49-2C18H20O3
6-Methyl-7-((3-methyl-2-butenyl)oxy)-2,3-dihydrocyclopenta(C)chromen-4(1H)-one
CAS 374758-76-6C18H20O3
![3-Methyl-1-[(2-methylallyl)oxy]-7,8,9,10-tetrahydro-6H-benzo[c]chromen-6-one chemical structure, C18H20O3, CAS 307550-44-3](/s/DQZZPCDUJTUOOO-UHFFFAOYSA-N.svg)
3-Methyl-1-[(2-methylallyl)oxy]-7,8,9,10-tetrahydro-6H-benzo[c]chromen-6-one
CAS 307550-44-3C18H20O3
(3-((4-Isopropylbenzyl)oxy)phenyl)acetic acid
CAS 882865-41-0C18H20O3
Gibberic acid
CAS 427-78-1C18H20O3
![10,11-Diethyl-3a,4,9,9a-tetrahydro-4,9-ethanonaphtho[2,3-c]furan-1,3-dione chemical structure, C18H20O3, CAS 198077-44-0](/s/RJMSBHKPHAFXQK-UHFFFAOYSA-N.svg)
10,11-Diethyl-3a,4,9,9a-tetrahydro-4,9-ethanonaphtho[2,3-c]furan-1,3-dione
CAS 198077-44-0C18H20O3
Diethylstilbestrol epoxide
CAS 6052-82-0C18H20O3
(5R,6R,7R)-5-(4-Hydroxyphenyl)-6,7-dimethyl-5,6,7,8-tetrahydronaphthalene-2,3-diol
CAS 71113-16-1C18H20O3
4-Hydroxy-equilin
CAS 81608-62-0C18H20O3
Diethylstilbestrol pinacolone
CAS 18922-13-9C18H20O3
![4-Methyl-3-[(2-methylprop-2-enyl)oxy]-7,8,9,10-tetrahydro-6H-benzo[c]chromen-6-one chemical structure, C18H20O3, CAS 307549-93-5](/s/ROZPMMSASWIFQQ-UHFFFAOYSA-N.svg)
4-Methyl-3-[(2-methylprop-2-enyl)oxy]-7,8,9,10-tetrahydro-6H-benzo[c]chromen-6-one
CAS 307549-93-5C18H20O3
- Nurr1 agonist 7228707-95-7C18H20O3
- 6-Ketoestrone1476-34-2C18H20O3
- 7-Methyl-9-((3-methyl-2-butenyl)oxy)-2,3-dihydrocyclopenta(C)chromen-4(1H)-one374758-78-8C18H20O3
- 1-[4-(3-tert-Butyl-4-oxidanyl-phenoxy)phenyl]ethanone2735803-28-6C18H20O3
- 1,2,3-Trimethoxy-5-[(Z)-2-(4-methylphenyl)ethenyl]benzene141172-08-9C18H20O3
- 3-Hydroxy-9 beta-estra-1,3,5(10)-triene-11,17-dione7533-97-3C18H20O3
- 3-tert-Butyl-9-ethyl-4-methyl-7H-furo[2,3-f]chromen-7-one858755-25-6C18H20O3
- 2,2-Dimethylpropanoic acid, 4-benzyloxyphenyl ester67258-86-0C18H20O3
- (3bR,9bS)-6-Methoxy-9b-methyl-3b,4,5,9b,10,11-hexahydrophenanthro[1,2-c]furan-1(3H)-one1209485-40-4C18H20O3
- Effususol A1869082-58-5C18H20O3
- 4-(Benzyloxy)-2-hydroxy-3-propylacetophenone76833-51-7C18H20O3
- 2-(4-(tert-Butyl)phenyl)-1-(2,4-dihydroxyphenyl)ethanone1421452-11-0C18H20O3
- 9-Butyl-2,3,4-trimethyl-7H-furo[2,3-f]chromen-7-one858742-07-1C18H20O3
- 3-Biphenylacetic acid, 5-isobutoxy-61888-58-2C18H20O3
- 3,4-Bis(4-hydroxyphenyl)-3-hexenol62080-79-9C18H20O3
- (1,1'-Biphenyl)-3-acetic acid, 5-butoxy-61888-57-1C18H20O3
- Phenol, 4,4'-(4-hydroxycyclohexylidene)bis-114216-05-6C18H20O3
- 12-Oxo-9(11)-dehydroestradiol16143-51-4C18H20O3
- Benzoic acid, 4-[[2-(1,1-dimethylethyl)phenoxy]methyl]-833484-91-6C18H20O3
- 3-[(4-Isopropylphenoxy)methyl]-4-methoxybenzaldehyde438219-49-9C18H20O3
- 4'-(Pentyloxy)-[1,1'-biphenyl]-4-carboxylic acid59748-15-1C18H20O3
- 2-[4-(2-Phenylpropan-2-yl)phenoxy]propanoic acid70757-66-3C18H20O3
- 3',4'-Hexestrol quinone100551-58-4C18H20O3
- 5-Ethoxy-6-(2-phenylpropan-2-yl)-2H-1,3-benzodioxole71712-47-5C18H20O3
- 1-Hydroxypseudodiethylstilbestrol68034-40-2C18H20O3
- 4-[(4-tert-Butylphenyl)methoxy]benzoic acid62290-42-0C18H20O3
- Populene C1035531-17-9C18H20O3
- 2-[(2-Isopropyl-5-methylphenoxy)methyl]benzoic acid260395-93-5C18H20O3
- Solistatin247172-66-3C18H20O3
- Trap-6-IN-12068737-10-8C18H20O3
- (4bR,7S,9aS,10R)-7-Hydroxy-1-methyl-8-methylene-5,6,7,8,9,10-hexahydro-4bH-7,9a-methanobenzo[a]azulene-10-carboxylic acid13613-87-1C18H20O3
- Benzophenone, 2-hydroxy-4-(pentyloxy)-83937-21-7C18H20O3
- 1,2-Bis(4-methoxyphenyl)butan-1-one4390-94-7C18H20O3
- 3-Cyclooctyl-4-hydroxynaphthalene-1,2-dione73356-06-6C18H20O3
- Methyl 3-[(4-isopropylphenoxy)methyl]benzoate438464-21-2C18H20O3
- 3-[(4-tert-Butylphenoxy)methyl]benzoic acid225942-76-7C18H20O3
- 4-(3-Methoxy-4-(phenylmethoxy)phenyl)-2-butanone39886-78-7C18H20O3
- 4-Ethoxyphenyl 4-propylbenzoate53132-08-4C18H20O3
- 8-(1-Naphthyl)-8-oxooctanoic acid101743-46-8C18H20O3
- 2,3,9,10-Tetrahydro-6,8,8-trimethyl-8H-cyclopenta[d]pyrano[3',2':4,5]benzo[1,2-b]pyran-4(1H)-one855779-19-0C18H20O3
- Methyl 3-(2-methoxy-5-methylphenyl)-3-phenylpropionate124937-62-8C18H20O3
- Benzoic acid, 4-methoxy-, 4-butylphenyl ester35840-23-4C18H20O3
- 8-(2-Naphthyl)-8-oxooctanoic acid362669-52-1C18H20O3
- (2R,3R)-2,3-Bis(benzyloxyMethyl)oxirane80183-15-9C18H20O3
- (2R,3R)-2,3-Bis((benzyloxy)methyl)oxirane136458-56-5C18H20O3
- Ethyl 6-(2-naphthyl)-6-oxohexanoate183966-16-7C18H20O3
- (R)-2,4,5-Trimethoxydalbergiquinol14753-80-1C18H20O3
- 1,4-Bis(4-methoxyphenyl)butan-1-one71501-17-2C18H20O3
- 7,7-Dimethyl-4-(4-methylphenyl)-3,4,6,8-tetrahydrochromene-2,5-dione400084-56-2C18H20O3
- 4-[4-(Benzyloxy)phenyl]oxan-4-ol444341-90-6C18H20O3
- Ethyl 6-(1-naphthyl)-6-oxohexanoate101743-65-1C18H20O3
- 1-(2-(Allyloxy)ethoxy)-4-(benzyloxy)benzene1354967-78-4C18H20O3
- 2-(4-(Benzyloxy)phenyl)-3-methylbutanoic acid121108-85-8C18H20O3
- Benzoic acid, 4-butyl-, 4-methoxyphenyl ester35684-23-2C18H20O3
- 16alpha-Hydroxyestra-4,9,11-trien-3,17-dione80777-59-9C18H20O3
- 1-Propanone, 2,2-dimethyl-3-hydroxy-3-(4-methoxyphenyl)-1-phenyl-96863-70-6C18H20O3
- (-)-(Z)-Bisdehydrodoisynolic acid17659-99-3C18H20O3
- 5-Methyl-2-phenyl-5-phenylmethoxy-1,3-dioxane66757-11-7C18H20O3
- 5-Methoxy-3-(4-T-butylphenyl)benzoic acid1261898-19-4C18H20O3
- 2-Methoxy-4-(4-T-butylphenyl)benzoic acid1261923-76-5C18H20O3
- 1'-Acetonaphthone, 4'-(2-oxohexyloxy)-73663-71-5C18H20O3
- 1-Oxaspiro(4.5)dec-3-en-2-one, 3-methyl-4-(4-methylbenzoyl)-86560-11-4C18H20O3
- 1-Oxaspiro(4.5)dec-3-en-2-one, 3-methyl-4-(2-methylbenzoyl)-86560-12-5C18H20O3
- Ethanone, 2,2-diethoxy-1,2-diphenyl-41996-78-5C18H20O3
- Methyl (E)-3-(6-butoxy-2-naphthyl)-2-propenoate551931-31-8C18H20O3
- 5-Methoxy-2-(4-T-butylphenyl)benzoic acid926253-21-6C18H20O3
- 4-(Benzyloxy)-3-(tert-butyl)benzoic acid146852-63-3C18H20O3
- Ethyl 2,2-dimethyl-4-(2-naphthyl)-4-oxobutyrate898753-71-4C18H20O3
- tert-Butyl 3-(benzyloxy)benzoate378787-46-3C18H20O3
- 3-(2-Hydroxy-5-methylphenyl)-3-phenylpropyl acetate2514856-06-3C18H20O3
- Ethyl 3-[4-(benzyloxy)phenyl]propanoate186895-45-4C18H20O3
- 3-((3-Methyl-2-butenyl)oxy)-7,8,9,10-tetrahydro-6H-benzo(C)chromen-6-one374759-88-3C18H20O3
- 2-(3,4-Dimethylphenoxy)-1-(4-methoxyphenyl)propan-1-one692767-50-3C18H20O3
- Oxirane, 2,3-bis[(phenylmethoxy)methyl]-, (2S,3S)-81177-24-4C18H20O3
- 4-Pentylphenyl 4-hydroxybenzoate50687-64-4C18H20O3
- Methyl 4-[(2,3,5-trimethylphenoxy)methyl]benzoate1018126-73-2C18H20O3
Frequently asked questions
What is the molar mass of C18H20O3?
The molar mass of C18H20O3 is 284.35 g/mol, calculated from standard atomic weights for 18 carbon atoms, 20 hydrogen atoms and 3 oxygen atoms. The monoisotopic mass is 284.1412 Da.
How many compounds have the formula C18H20O3?
CompoundList lists 318 compounds with the molecular formula C18H20O3, including Estra-1,5(10)-diene-3,4,17-trione, 3-Hydroxyestra-1,3,5(10)-triene-16,17-dione, Tetrahydro-alpha-(1-naphthalenylmethyl)-2-furanpropanoic acid. 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 C18H20O3?
C18H20O3 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.