Molecular formula
C21H34O2
125 compounds have this formula on CompoundList.
- Molar mass
- 318.50g/mol
- Monoisotopic mass
- 326.3061Da
- Atoms
- 57
- Elements
- 3
- Rings plus double bonds
- 5
The formula C21H34O2 describes a molecule made of 21 carbon atoms, 34 hydrogen atoms and 2 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 × 2179.19%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 3410.76%1.008 × 34 = 34.272 g/mol
- O Oxygen × 210.05%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H34O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 125 compounds
Pregnanolone
CAS 128-20-1C21H34O2
Allopregnanolone
CAS 516-54-1C21H34O2
Isopregnanolone
CAS 516-55-2C21H34O2
Epipregnanolone
CAS 128-21-2C21H34O2
3-Hydroxypregnan-20-one
CAS 4406-35-3C21H34O2
CP 47497
CAS 70434-82-1C21H34O2
Methyl arachidonate
CAS 2566-89-4C21H34O2
Pregnenediol
CAS 901-56-4C21H34O2
Bilobol
CAS 22910-86-7C21H34O2
3-(8-Pentadecenyl)catechol
CAS 2764-91-2C21H34O2
5alpha-Pregnan-20alpha-ol-3-one
CAS 516-59-6C21H34O2
Methasterone
CAS 3381-88-2C21H34O2
Urushiol II
CAS 35237-02-6C21H34O2
3-(10Z)-10-Pentadecen-1-yl-1,2-benzenediol
CAS 83532-37-0C21H34O2
Tetradecyl benzoate
CAS 70682-72-3C21H34O2
CP-47947
CAS 114753-51-4C21H34O2
2,4-Heneicosadiynoic acid
CAS 69288-33-1C21H34O2
15-Phenylpentadecanoic acid
CAS 40228-93-1C21H34O2
8,10-Heneicosadiynoic acid
CAS 174063-95-7C21H34O2
![(3R,8S,9S,10R,13S,14S,17S)-17-[(1S)-1-Hydroxyethyl]-10,13-dimethyl-2,3,6,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol chemical structure, C21H34O2, CAS 15780-16-2](/s/IBMZAHKIAAJREF-MZQZJKNOSA-N.svg)
(3R,8S,9S,10R,13S,14S,17S)-17-[(1S)-1-Hydroxyethyl]-10,13-dimethyl-2,3,6,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol
CAS 15780-16-2C21H34O2
Methyl copalate
CAS 17110-88-2C21H34O2
17A-Methyl-drostanolone
CAS 88979-44-6C21H34O2
Demalon
CAS 2881-21-2C21H34O2
17beta-Hydroxy-5alpha-androstane acetate
CAS 1236-49-3C21H34O2
- Benzyl myristate31161-71-4C21H34O2
- Pregn-5-ene-3beta,20beta-diol901-57-5C21H34O2
- 3-(10-Pentadecen-1-yl)-1,2-benzenediol492-90-0C21H34O2
- Allopregnan-20beta-ol-3-one516-58-5C21H34O2
- 2-(3-Hydroxycyclohexyl)-5-(2-methyloctan-2-yl)phenol1333310-60-3C21H34O2
- 5-(Pentadec-1-en-1-yl)benzene-1,3-diol91549-16-5C21H34O2
- 4-Tetradecyloxybenzaldehyde59117-17-8C21H34O2
- 5,8,11,14-Eicosatetraenoic acid, methyl ester38575-18-7C21H34O2
- 1-((3R,5r,8r,9r,10s,13s,14s,17s)-3-Hydroxy-3,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethanone162882-77-1C21H34O2
- 5beta-Pregnan-20alpha-ol-3-one54353-11-6C21H34O2
- 5-((Z)-Pentadec-10-en-1-yl)resorcinol52483-20-2C21H34O2
- 3beta-Hydroxy-5alpha-androstane acetate1236-13-1C21H34O2
- 2-[(1S,3S)-3-Hydroxycyclohexyl]-5-(2-methyloctan-2-yl)phenol70434-83-2C21H34O2
- Stereonsteroid A876754-76-6C21H34O2
- 1(S)-Tetrahydrocannabidiol3097323-02-6C21H34O2
- omega-3 Arachidonic acid methyl ester132712-70-0C21H34O2
- Methyl dihydroabietate33892-18-1C21H34O2
- (2E,6E,10E)-3,7,11,15-Tetramethylhexadeca-2,6,10,14-tetraen-1-yl formate125456-63-5C21H34O2
- Hexadeca-7,9,11,13-tetraen-1-yl 3-methylbutanoate138501-41-4C21H34O2
- Methyl pimar-8-en-18-oate33952-78-2C21H34O2
- 1 suppliers10,12-Heneicosadiynoic acid28393-00-2C21H34O2
- Zkf2JG3sys110769-76-1C21H34O2
- AN78SQ2Wkc938174-18-6C21H34O2
- 7alpha,17-Dimethylandrost-4-ene-3beta,17beta-diol13950-71-5C21H34O2
- 1-Phenanthrenecarboxylic acid, 1,2,3,4,4a,4b,5,6,7,8,10,10a-dodecahydro-1,4a-dimethyl-7-(1-methylethyl)-, methyl ester67893-02-1C21H34O2
- 3beta-Hydroxypregnan-20-one4406-37-5C21H34O2
- 2alpha,17alpha-Dimethyl-17beta-hydroxy-5alpha-androstan-3-oneC21H34O2
- o-Benzoquinone, 3-pentadecyl-22693-10-3C21H34O2
- 7,9,11-Trimethyl-3-(2,4,6-trimethylcyclohex-3-en-1-yl)-2,4-dioxaspiro[5.5]undec-8-ene374807-16-6C21H34O2
- Etiocholanic acid methyl ester88929-08-2C21H34O2
- 2-(Tetradecyloxy)benzaldehyde24083-20-3C21H34O2
- (3alpha)-Allopregnanolone-d52687960-66-1C21H34O2
- 1,3-Benzenediol, 2-[5-methyl-2-(1-methylethyl)cyclohexyl]-5-pentyl-4460-20-2C21H34O2
- Dodecyl 3-phenylpropanoate112715-88-5C21H34O2
- Methyl (Z)-5,11,14,17-eicosatetraenoate59149-01-8C21H34O2
- ((p-Dodecylphenoxy)methyl)oxirane34649-59-7C21H34O2
- 5beta-Pregnan-3alpha-ol-20-one-17alpha,21,21,21-d496737-93-8C21H34O2
- Methyl (1R,4aR,4bS,10aR)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,8a,9,10,10a-decahydrophenanthrene-1-carboxylate30968-45-7C21H34O2
- Octyl 2-[4-(2-methylpropyl)phenyl]propanoate82859-85-6C21H34O2
- (8S,9S,10R,13S,14S,17S)-17-[(1S)-1-Hydroxyethyl]-10,13-dimethyl-2,3,6,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol28507-76-8C21H34O2
- 2H-Pyran, 2-(11,13-hexadecadiyn-1-yloxy)tetrahydro-71673-33-1C21H34O2
- 1 suppliersHenicosa-6,8-diynoic acid174063-94-6C21H34O2
- Arachidonic Acid methyl ester-d819245-55-7C21H34O2
- 17-Hydroxy-2,4-dimethylandrostan-3-one54550-08-2C21H34O2
- 17-Hydroxy-2,7,10,13-tetramethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one13886-27-6C21H34O2
- 2,3,4,4a,5,6,8,9,10,11,11a,11b-Dodecahydro-4,8,9,11b-tetramethyl-1H-cyclohepta[a]naphthalene-4-carboxylic acid methyl ester55101-92-3C21H34O2
- 1-{[(2E)-3,7-Dimethyl-7-propoxyoct-2-EN-1-yl]oxy}-4-ethylbenzene40621-43-0C21H34O2
- Ethyl (5Z,8Z,11Z,14Z)-nonadeca-5,8,11,14-tetraenoate860629-94-3C21H34O2
- (S)-3-(Benzyloxy)tetradecanal138650-27-8C21H34O2
- Methyl 13-dihydroabietate33892-12-5C21H34O2
- (1R,4AR,4BS,10AR)-Methyl 2,4B,8,8,10A-pentamethyl-1,4,4A,4B,5,6,7,8,8A,9,10,10A-dodecahydrophenanthrene-1-carboxylate59909-34-1C21H34O2
- 9-(1-Hydroxyethyl)-10,11b-dimethyl-2,3,4,4a,5,6,6a,6b,7,8,10a,11,11a,11b-tetradecahydro-1H-benzo[a]fluoren-3-ol89714-84-1C21H34O2
- 17-Hydroxy-7,17-dimethylandrostan-3-one51067-45-9C21H34O2
- Tetradecanal, 3-(phenylmethoxy)-, (3R)-112763-97-0C21H34O2
- Arachidonic acid-d5 methyl ester123167-39-5C21H34O2
- (2R,8R,9S,10S,13S,14S,17S)-17-Hydroxy-2,10,13,17-tetramethyl-2,4,5,6,7,8,9,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-3-oneC21H34O2
- 2,6-Di-tert-butyl-4-methylphenyl 2-ethylbutanoate97234-22-5C21H34O2
- 5alpha-Pregnan-3alpha-ol-20-one-17alpha,21,21,21-d4203805-85-0C21H34O2
- Allopregnanolone-d4C21H34O2
- 1(R)-Tetrahydrocannabidiol3061058-81-6C21H34O2
- Benzenepropanoic acid, 1,1-dimethyldecyl ester434935-66-7C21H34O2
- Benzene, 1,3-dimethoxy-5-(1-tridecenyl)-, (E)-171569-31-6C21H34O2
- 2-(7,11-Hexadecadiyn-1-yloxy)tetrahydro-2H-pyran53963-04-5C21H34O2
- 4-Tetradecylbenzoic acid55850-65-2C21H34O2
- 3-(Tetradecyloxy)benzaldehyde24083-21-4C21H34O2
- Henicosa-2,4,6,8-tetraenoic acid134176-34-4C21H34O2
- (8R,9S,10S,13S,14S)-10,13-Dimethylhexadecahydrospiro[cyclopenta[a]phenanthrene-17,4'-[1,3]dioxolane]42719-26-6C21H34O2
- 5-(2-Methyloctan-2-yl)-2-[(1S)-2,2,3,4,4-pentadeuterio-3-hydroxycyclohexyl]phenolC21H34O2
- 3-[7-(3-Hexyloxiran-2-yl)heptyl]phenol61549-09-5C21H34O2
- (8R,9R,10S,13R,14S)-13-Methylhexadecahydrospiro[cyclopenta[a]phenanthrene-16,5'-[1,3]dioxane]60513-75-9C21H34O2
- 4-Methylphenyl tetradecanoate59558-24-6C21H34O2
- 5-[(7Z)-Pentadec-7-en-1-yl]benzene-1,3-diol1640287-40-6C21H34O2
- 5-(2-Methyloctan-2-yl)-2-[(1S,3R)-2,2,3,4,4-pentadeuterio-3-hydroxycyclohexyl]phenolC21H34O2
- (2S)-Octan-2-yl (2S)-2-[4-(2-methylpropyl)phenyl]propanoate184941-16-0C21H34O2
- Methyl (4I(2))-kauran-18-oate5282-19-9C21H34O2
- (5a,17a)-17-Hydroxypregnan-3-one20112-30-5C21H34O2
Frequently asked questions
What is the molar mass of C21H34O2?
The molar mass of C21H34O2 is 318.50 g/mol, calculated from standard atomic weights for 21 carbon atoms, 34 hydrogen atoms and 2 oxygen atoms. The monoisotopic mass is 326.3061 Da.
How many compounds have the formula C21H34O2?
CompoundList lists 125 compounds with the molecular formula C21H34O2, including Pregnanolone, Allopregnanolone, Isopregnanolone. 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 C21H34O2?
C21H34O2 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.