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Molecular formula

C21H34O3

132 compounds have this formula on CompoundList.

Molar mass
334.50g/mol
Monoisotopic mass
339.2822Da
Atoms
58
Elements
3
Rings plus double bonds
5

The formula C21H34O3 describes a molecule made of 21 carbon atoms, 34 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 × 2175.41%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 3410.25%
    1.008 × 34 = 34.272 g/mol
  • O Oxygen × 314.35%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C21H34O3

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

Showing 101 to 132 of 132 compounds

7-[6-(3-Methylhept-1-enyl)-3-oxo-2-bicyclo[3.1.0]hexanyl]heptanoic acid chemical structure, C21H34O3, CAS 52381-39-2
7-[6-(3-Methylhept-1-enyl)-3-oxo-2-bicyclo[3.1.0]hexanyl]heptanoic acid
CAS 52381-39-2C21H34O3
2-Methoxy-6-tetradecyl-2,5-cyclohexadiene-1,4-dione chemical structure, C21H34O3, CAS 148173-62-0
2-Methoxy-6-tetradecyl-2,5-cyclohexadiene-1,4-dione
CAS 148173-62-0C21H34O3
3beta,7alpha-Dihydroxy-5alpha-pregnan-20-one chemical structure, C21H34O3, CAS 566-20-1
3beta,7alpha-Dihydroxy-5alpha-pregnan-20-one
CAS 566-20-1C21H34O3
Compound NP-023117 chemical structure, C21H34O3, CAS 194427-92-4
Compound NP-023117
CAS 194427-92-4C21H34O3
Siegesmethyethericacid chemical structure, C21H34O3
Siegesmethyethericacid
C21H34O3
(S)-3-[(1E,7Z)-Hexadecan-7-enylidene]-4,5-dihydro-4-hydroxy-5-methylenefuran-2(3H)-one chemical structure, C21H34O3
(S)-3-[(1E,7Z)-Hexadecan-7-enylidene]-4,5-dihydro-4-hydroxy-5-methylenefuran-2(3H)-one
C21H34O3
(1S,betaS)-1,4,4aalpha,5,6,7,8,8a-Octahydro-beta,2,5,5,8abeta-pentamethyl-4-oxo-1beta-naphthalenepentanoic acid meth chemical structure, C21H34O3, CAS 1438-56-8
(1S,betaS)-1,4,4aalpha,5,6,7,8,8a-Octahydro-beta,2,5,5,8abeta-pentamethyl-4-oxo-1beta-naphthalenepentanoic acid meth
CAS 1438-56-8C21H34O3
(3|A,5|A,16|A)-3,16-Dihydroxypregnan-20-one chemical structure, C21H34O3, CAS 570-64-9
(3|A,5|A,16|A)-3,16-Dihydroxypregnan-20-one
CAS 570-64-9C21H34O3
(5S,8R,9S,10S,13S,14S,17S)-10,13-Dimethylhexadecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17-ol chemical structure, C21H34O3, CAS 1046-35-1
(5S,8R,9S,10S,13S,14S,17S)-10,13-Dimethylhexadecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17-ol
CAS 1046-35-1C21H34O3
1,2-Dicyclohexyl-2-oxoethyl cyclohexanecarboxylate chemical structure, C21H34O3, CAS 133373-46-3
1,2-Dicyclohexyl-2-oxoethyl cyclohexanecarboxylate
CAS 133373-46-3C21H34O3
Chaetomellic acid B anhydride-d3 chemical structure, C21H34O3, CAS 1346606-34-5
Chaetomellic acid B anhydride-d3
CAS 1346606-34-5C21H34O3
Tetradecyl 3-(furan-2-yl)prop-2-enoate chemical structure, C21H34O3, CAS 96427-07-5
Tetradecyl 3-(furan-2-yl)prop-2-enoate
CAS 96427-07-5C21H34O3
2-[2-(Decyloxy)phenoxy]oxane chemical structure, C21H34O3, CAS 139394-72-2
2-[2-(Decyloxy)phenoxy]oxane
CAS 139394-72-2C21H34O3
15-(5-Oxocyclohexa-1,3-dien-1-yl)pentadecanoic acid chemical structure, C21H34O3, CAS 184900-11-6
15-(5-Oxocyclohexa-1,3-dien-1-yl)pentadecanoic acid
CAS 184900-11-6C21H34O3
3-(Hexyloxy)-4-(octyloxy)benzaldehyde chemical structure, C21H34O3, CAS 650606-33-0
3-(Hexyloxy)-4-(octyloxy)benzaldehyde
CAS 650606-33-0C21H34O3
2-[2,4-Bis(1,1-dimethylpropyl)phenoxy]-3-methylbutanoic acid chemical structure, C21H34O3, CAS 69080-86-0
2-[2,4-Bis(1,1-dimethylpropyl)phenoxy]-3-methylbutanoic acid
CAS 69080-86-0C21H34O3
(3?,5?,6?)-3,6-Dihydroxy-pregnan-20-one chemical structure, C21H34O3, CAS 14357-63-2
(3?,5?,6?)-3,6-Dihydroxy-pregnan-20-one
CAS 14357-63-2C21H34O3
Pregn-5-ene-3beta,20beta,21-triol chemical structure, C21H34O3, CAS 853-26-9
Pregn-5-ene-3beta,20beta,21-triol
CAS 853-26-9C21H34O3
(3S,5S,8R,9S,10S,13S,14S,17R)-2,10,13,17-Tetramethyl-3,4,5,6,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,16,17-triol chemical structure, C21H34O3, CAS 1419771-08-6
(3S,5S,8R,9S,10S,13S,14S,17R)-2,10,13,17-Tetramethyl-3,4,5,6,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,16,17-triol
CAS 1419771-08-6C21H34O3
Siegesmethyetheric acid chemical structure, C21H34O3
Siegesmethyetheric acid
C21H34O3
(1S,3aS,3bR,5aS,7R,9aS,9bS,11aS)-1-Hydroxy-9a,11a-dimethyl-hexadecahydro-1H-cyclopenta[a]phenanthren-7-yl acetate chemical structure, C21H34O3
(1S,3aS,3bR,5aS,7R,9aS,9bS,11aS)-1-Hydroxy-9a,11a-dimethyl-hexadecahydro-1H-cyclopenta[a]phenanthren-7-yl acetate
C21H34O3
Methyl (E)-5-[(1S,4aR,5S,8aR)-5-(hydroxymethyl)-5,8a-dimethyl-2-methylidene-3,4,4a,6,7,8-hexahydro-1H-naphthalen-1-yl]-3-methylpent-2-enoate chemical structure, C21H34O3, CAS 1757-87-5
Methyl (E)-5-[(1S,4aR,5S,8aR)-5-(hydroxymethyl)-5,8a-dimethyl-2-methylidene-3,4,4a,6,7,8-hexahydro-1H-naphthalen-1-yl]-3-methylpent-2-enoate
CAS 1757-87-5C21H34O3
Methyl (5Z,8Z)-10-[3-[(Z)-oct-2-enyl]oxiran-2-yl]deca-5,8-dienoate chemical structure, C21H34O3, CAS 73799-06-1
Methyl (5Z,8Z)-10-[3-[(Z)-oct-2-enyl]oxiran-2-yl]deca-5,8-dienoate
CAS 73799-06-1C21H34O3
5-(11-Hydroxy-7,7-dimethyldodeca-2,9-dienylidene)-4-methylidenecyclohexane-1,3-diol chemical structure, C21H34O3, CAS 1229442-24-3
5-(11-Hydroxy-7,7-dimethyldodeca-2,9-dienylidene)-4-methylidenecyclohexane-1,3-diol
CAS 1229442-24-3C21H34O3

Frequently asked questions

What is the molar mass of C21H34O3?

The molar mass of C21H34O3 is 334.50 g/mol, calculated from standard atomic weights for 21 carbon atoms, 34 hydrogen atoms and 3 oxygen atoms. The monoisotopic mass is 339.2822 Da.

How many compounds have the formula C21H34O3?

CompoundList lists 132 compounds with the molecular formula C21H34O3, including 7-[6-(3-Methylhept-1-enyl)-3-oxo-2-bicyclo[3.1.0]hexanyl]heptanoic acid, 2-Methoxy-6-tetradecyl-2,5-cyclohexadiene-1,4-dione, 3beta,7alpha-Dihydroxy-5alpha-pregnan-20-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 C21H34O3?

C21H34O3 has a degree of unsaturation of 5. 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.