Molecular formula
C21H30O2
187 compounds have this formula on CompoundList.
- Molar mass
- 314.47g/mol
- Monoisotopic mass
- 323.2811Da
- Atoms
- 53
- Elements
- 3
- Rings plus double bonds
- 7
The formula C21H30O2 describes a molecule made of 21 carbon atoms, 30 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 × 2180.21%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 309.62%1.008 × 30 = 30.240 g/mol
- O Oxygen × 210.18%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H30O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 187 of 187 compounds
![3-[4-(1,1-Dimethylheptyl)-2-hydroxyphenyl]-2-cyclohexenone chemical structure, C21H30O2, CAS 70435-20-0](/s/HXMACSGVHWDXAS-UHFFFAOYSA-N.svg)
3-[4-(1,1-Dimethylheptyl)-2-hydroxyphenyl]-2-cyclohexenone
CAS 70435-20-0C21H30O2
delta4(8)-Isotetrahydrocannabinol
CAS 23050-59-1C21H30O2
![2-[[(1S,4aS,8aS)-5,5,8a-Trimethyl-2-methylidene-3,4,4a,6,7,8-hexahydro-1H-naphthalen-1-yl]methyl]benzene-1,4-diol chemical structure, C21H30O2, CAS 110715-67-8](/s/CPXDKDFWEZFRKT-HFSMHLIXSA-N.svg)
2-[[(1S,4aS,8aS)-5,5,8a-Trimethyl-2-methylidene-3,4,4a,6,7,8-hexahydro-1H-naphthalen-1-yl]methyl]benzene-1,4-diol
CAS 110715-67-8C21H30O2
6H-Dibenzo(b,d)pyran-3-ol, 6,6-dimethyl-2-hexyl-7,8,9,10-tetrahydro-
CAS 16720-05-1C21H30O2
ABN-delta8-THC
CAS 22972-59-4C21H30O2
2-Methyl-9-pentyl-5-(propan-2-yl)-3,6-dihydro-2H-2,6-methano-1-benzoxocin-7-ol
CAS 23050-57-9C21H30O2
19-Norpregn-9-ene-3,20-dione, 5-methyl-, (5-beta)-
CAS 130917-92-9C21H30O2
Peroxide, bis(1-methyl-1-((1-methylethyl)phenyl)ethyl)
CAS 68540-63-6C21H30O2
![Methyl (E)-3-[4-(4-pentylcyclohexyl)phenyl]prop-2-enoate chemical structure, C21H30O2, CAS 692733-03-2](/s/RAMXGIXSKNISBL-LFIBNONCSA-N.svg)
Methyl (E)-3-[4-(4-pentylcyclohexyl)phenyl]prop-2-enoate
CAS 692733-03-2C21H30O2
(Z)-3-(5,5,8,8-Tetramethyl-3-propoxy-5,6,7,8-tetrahydronaphthalen-2-yl)but-2-enal
CAS 180861-54-5C21H30O2
13-Cis retinoic acid methyl ester
CAS 16760-45-5C21H30O2
![(5S,8R,9S,10S,13S,14S)-17-Ethynyl-17-hydroxy-10,13-dimethyl-2,4,5,6,7,8,9,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-3-one chemical structure, C21H30O2, CAS 13611-97-7](/s/PVHMKHVQVIUQIP-PWGKOOIMSA-N.svg)
(5S,8R,9S,10S,13S,14S)-17-Ethynyl-17-hydroxy-10,13-dimethyl-2,4,5,6,7,8,9,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-3-one
CAS 13611-97-7C21H30O2
(+)-cis-Cannabidiol
CAS 13956-30-4C21H30O2
(9cis)-O~15~-Methylretinoic acid
CAS 58526-50-4C21H30O2
(4-~14~C)Pregn-4-ene-3,20-dione
CAS 1783-95-5C21H30O2
3-Ethynyl-3-hydroxyandrostan-17-one
C21H30O2
6-Ethynyl-3a,5a-dimethylhexadecahydrocyclopenta(a)cyclopropa(2,3)cyclopenta(1,2-f)naphthalene-6,10-diol
CAS 7253-33-0C21H30O2
Cannabinol, tetrahydro-
CAS 1323-34-8C21H30O2
3b-Hydroxypregna-5,14-dien-29-one
CAS 22042-13-3C21H30O2
Dronabinol-d9
CAS 1217821-99-2C21H30O2
Delta8-iso-THC
CAS 23050-47-7C21H30O2
8-(4-(4-Methylphenyl)cyclohexyl)-1,4-dioxaspiro(4.5)decane
CAS 1185257-39-9C21H30O2
20beta-Dihydrodydrogesterone
CAS 4243-73-6C21H30O2
Cannabidiol-D3
CAS 1435783-16-6C21H30O2
- 3,5-Cyclopregn-20-yne-6,17-diolC21H30O2
- 3-Acetyl-3a,5b,10-trimethyl-2,3,3a,4,5,5a,5b,6,7,10,10a,10b-dodecahydrocyclopenta[a]fluoren-8(1H)-one18670-02-5C21H30O2
- 2-[[(1S,4aS,8aR)-1,2,4a-Trimethyl-5-methylidene-3,4,6,7,8,8a-hexahydro-2H-naphthalen-1-yl]methyl]benzene-1,4-diol87764-13-4C21H30O2
- 9(R)-Delta7-THC42793-13-5C21H30O2
- 7-(4-Octylphenyl)hept-5-ynoic acid88255-10-1C21H30O2
- 13-Ethyl-18,19-dinorpregn-4-ene-3,20-dione13934-52-6C21H30O2
- 6-[(3,7,9-Trimethyldeca-2,6-dien-1-yl)oxy]-2,3-dihydro-1-benzofuran51079-41-5C21H30O2
- (17beta)-17-Propylestra-1,3,5(10)-triene-3,17-diol971-81-3C21H30O2
- Vhq3W73P667663-51-6C21H30O2
- Progesterone-13C52687960-32-1C21H30O2
- Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (4-(1,1-dimethylethyl)phenyl)methyl ester, (1R-trans)-82488-24-2C21H30O2
- Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (4-butylphenyl)methyl ester, (1R-trans)-82497-83-4C21H30O2
- 4,4-Dimethylandrost-5-ene-3,17-dione2220-48-6C21H30O2
- 1-(3-Hydroxy-10,13-dimethyl-4,7,8,9,11,12,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-17-yl)ethanone17353-30-9C21H30O2
- 1,3-Dioxane, 2-[3-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-2-propenyl]-, (E)-107431-00-5C21H30O2
- Pregn-16-ene-3,20-dione14884-07-2C21H30O2
- 19-Norpregna-1,3,5(10)-trien-17-ol, 3-methoxy-17550-02-6C21H30O2
- Abnormal cannabidiol-D32649096-15-9C21H30O2
- 11-cis-Retinoic Acid Methyl Ester25428-67-5C21H30O2
- 17-MethyI-18-norandrosta-5,13(17)-dien-3b-ol 3-Acetate23930-63-4C21H30O2
- 2-[(1S,4R)-4-Methyl-6-prop-1-en-2-ylcyclohex-2-en-1-yl]-5-pentylbenzene-1,3-diol35542-48-4C21H30O2
- 3-(8,11,13-Pentadecatrienyl)pyrocatechol21104-16-5C21H30O2
- Dydrogesterone impurity 1286495-64-9C21H30O2
- 6a,9,10,10a-Tetrahydro-6,6,9-trimethyl-3-pentyl-6H-dibenzo[b,d]pyran-1-ol5957-28-8C21H30O2
- 4'-Butoxy-4-pentyl-5,6-dihydro[1,1'-biphenyl]-3(4H)-one113480-03-8C21H30O2
- (8xi,9xi,13xi,14xi,17xi)-Pregn-4-ene-3,20-dione94391-12-5C21H30O2
- 3beta-Hydroxypregna-1,4-dien-20-one20272-84-8C21H30O2
- Methyl (5R,13S)-5,10-dimethyl-14-methylidenetetracyclo[11.2.1.01,10.04,9]hexadec-4(9)-ene-5-carboxylate106687-25-6C21H30O2
- 13-Cis retinoic acid-d5 methyl ester1331666-29-5C21H30O2
- 4-(4-Pentylcyclohexyl)phenyl 2-methylprop-2-enoate851091-97-9C21H30O2
- 17b-Hydroxy-7,17-dimethylandrosta-4,6-dien-3-one37005-64-4C21H30O2
- Rocuronium bromide impurity 39103088-58-0C21H30O2
- 3,9,9-Trimethyl-6-pentyl-2,3,4,9-tetrahydro-1H-xanthen-8-ol18110-59-3C21H30O2
- (6aR,10aR)-6a,7,8,10a-Tetrahydro-6,6,9-trimethyl-3-(pentyl-3,3,4,4,5,5,5-d7)-6H-dibenzo[b,d]pyran-1-ol1175104-48-9C21H30O2
- 6H-Dibenzo[b,d]pyran-1-ol, 6a,7,8,10a-tetrahydro-6,6,9-trimethyl-3-(pentyl-1-t)-42899-22-9C21H30O2
- (±)-Cannabichromene-d92703568-88-9C21H30O2
- (7alpha-3H)Progesterone13117-24-3C21H30O2
- Methyl (5R,10S,13S)-5,10-dimethyl-14-methylidenetetracyclo[11.2.1.01,10.04,9]hexadec-4(9)-ene-5-carboxylateC21H30O2
- (E)-3-(5,5,8,8-Tetramethyl-3-propoxy-6,7-dihydronaphthalen-2-yl)but-2-enalC21H30O2
- 4-(4-Hexylbicyclo[2.2.2]octan-1-yl)benzoic acid82355-92-8C21H30O2
- 3-(5,5,8,8-Tetramethyl-3-propoxy-6,7-dihydronaphthalen-2-yl)but-2-enalC21H30O2
- 5alpha-Pregn-1-ene-3,20-dione65556-93-6C21H30O2
- 6-((3,7,9-Trimethyldeca-2,6-dien-1-yl)oxy)-2,3-dihydrobenzofuranC21H30O2
- 15-[2-(Prop-1-EN-1-yl)cyclopropyl]pentadeca-5,8,11,14-tetraenoic acid112087-49-7C21H30O2
- 2,5-Dimethyl-3-[4-(octyloxy)phenyl]cyclopent-2-EN-1-one194482-30-9C21H30O2
- 3-[4-(Decyloxy)phenyl]cyclopent-2-EN-1-one178758-53-7C21H30O2
- (3R,4aS)-3,9,9-Trimethyl-6-pentyl-2,4,4a,9-tetrahydro-3H-xanthen-8-ol63286-62-4C21H30O2
- 2,4,6-Tris(3-methylbut-2-en-1-yl)benzene-1,3-diol62566-44-3C21H30O2
- Pregn-4-ene-3,20-dione-2,2,6,6,17,21,21,21-d8 (mixture of isotopomers)1314917-13-9C21H30O2
- 1H-Phenaleno[1,2-d][1,3]dioxole, 2,3,3a,4,5,6-hexahydro-1,4,7-trimethyl-6-(2-methylpropyl)-, (1S,3aR,4S,6R)-1413393-70-0C21H30O2
- (9-Cis,13-cis)-retinoic acid methyl ester68070-33-7C21H30O2
- (8R,9S,13S,14S,17S)-3-Isopropoxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-ol345317-41-1C21H30O2
- Delta8-isotetrahydrocannabinolC21H30O2
- Pregn-4-en-20-yne-3,17-diol1264179-16-9C21H30O2
- Methyl (1R,4aR,4bR,10aR)-1,2,3,4,4a,4b,5,6,10,10a-decahydro-1,4a-dimethyl-7-(1-methylethenyl)-1-phenanthrenecarboxylate54850-32-7C21H30O2
- (1S,9S,12R)-9-Methyl-5-pentyl-12-prop-1-en-2-yl-8-oxatricyclo[7.3.1.02,7]trideca-2,4,6-trien-3-ol3034057-47-8C21H30O2
- (3S,8R,9S,10R,13S,14S,17S)-17-Ethynyl-10,13-dimethyl-1,2,3,4,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,17-diolC21H30O2
- (4aS,10aR)-7-Methoxy-1,1,4a-trimethyl-8-propan-2-yl-4,9,10,10a-tetrahydro-3H-phenanthren-2-one18326-16-4C21H30O2
- (4aS,10aR)-6-Methoxy-1,1,4a-trimethyl-7-propan-2-yl-4,9,10,10a-tetrahydro-3H-phenanthren-2-one18325-89-8C21H30O2
- Androstan-17-one,3-ethynyl-3-hydroxy-, (3b,5a)-C21H30O2
- Abnormal cannabidiol-d92714417-97-5C21H30O2
- 9-Methyl-5-pentyl-12-propan-2-yl-8-oxatricyclo[7.3.1.02,7]trideca-2,4,6,10-tetraen-3-ol31616-24-7C21H30O2
- (4aS)-6-Methoxy-1,1,4a-trimethyl-7-propan-2-yl-4,9,10,10a-tetrahydro-3H-phenanthren-2-oneC21H30O2
Frequently asked questions
What is the molar mass of C21H30O2?
The molar mass of C21H30O2 is 314.47 g/mol, calculated from standard atomic weights for 21 carbon atoms, 30 hydrogen atoms and 2 oxygen atoms. The monoisotopic mass is 323.2811 Da.
How many compounds have the formula C21H30O2?
CompoundList lists 187 compounds with the molecular formula C21H30O2, including 3-[4-(1,1-Dimethylheptyl)-2-hydroxyphenyl]-2-cyclohexenone, delta4(8)-Isotetrahydrocannabinol, 2-[[(1S,4aS,8aS)-5,5,8a-Trimethyl-2-methylidene-3,4,4a,6,7,8-hexahydro-1H-naphthalen-1-yl]methyl]benzene-1,4-diol. 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 C21H30O2?
C21H30O2 has a degree of unsaturation of 7. 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.