Molecular formula
C21H26O5
69 compounds have this formula on CompoundList.
- Molar mass
- 358.43g/mol
- Monoisotopic mass
- 358.1780Da
- Atoms
- 52
- Elements
- 3
- Rings plus double bonds
- 9
The formula C21H26O5 describes a molecule made of 21 carbon atoms, 26 hydrogen atoms and 5 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 × 2170.37%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 267.31%1.008 × 26 = 26.208 g/mol
- O Oxygen × 522.32%15.999 × 5 = 79.995 g/mol
Look up another formula
Compounds with the formula C21H26O5
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 69 of 69 compounds
Prednisone
CAS 53-03-2C21H26O5
Monascin
CAS 21516-68-7C21H26O5
Malabaricone C
CAS 63335-25-1C21H26O5
(9R)-16,17-Dimethoxytricyclo(12.3.1.12,6)nonadeca-1(18),2,4,6(19),14,16-hexaene-3,9,15-triol
CAS 33606-81-4C21H26O5
3-(4-(1-(4-(2,3-Epoxypropoxy)phenyl)-1-methylethyl)phenoxy)propane-1,2-diol
CAS 76002-91-0C21H26O5
17,21-Dihydroxypregna-1,4-diene-3,11,20-trione
CAS 1192475-75-4C21H26O5
![16,17-Dimethoxytricyclo[12.3.1.12,6]nonadeca-1(17),2,4,6(19),14(18),15-hexaene-3,9,15-triol chemical structure, C21H26O5, CAS 68510-47-4](/s/SBGBAZQAEOWGFT-UHFFFAOYSA-N.svg)
16,17-Dimethoxytricyclo[12.3.1.12,6]nonadeca-1(17),2,4,6(19),14(18),15-hexaene-3,9,15-triol
CAS 68510-47-4C21H26O5
Virolin
CAS 68143-83-9C21H26O5
Strobilurin F
CAS 129145-63-7C21H26O5
6-Dehydro prednisolone
CAS 2427-64-7C21H26O5
![2-[(8-Hexyl-4-oxo-1,2,3,4-tetrahydrocyclopenta[c]chromen-7-yl)oxy]propanoic acid chemical structure, C21H26O5, CAS 301196-66-7](/s/CBQDOUMZGJALAW-UHFFFAOYSA-N.svg)
2-[(8-Hexyl-4-oxo-1,2,3,4-tetrahydrocyclopenta[c]chromen-7-yl)oxy]propanoic acid
CAS 301196-66-7C21H26O5
Sonderianin
CAS 79405-82-6C21H26O5
Bifidenone
CAS 2078008-57-6C21H26O5
5-Hydroxy-1,7-bis(4-hydroxyphenyl)heptan-3-yl acetate
CAS 1269839-24-8C21H26O5
Penduliflaworosin
CAS 78791-49-8C21H26O5
Kadsurenin C
CAS 145722-88-9C21H26O5
Mammea B/AC
CAS 38537-84-7C21H26O5
1,5-Bis(3,4-dimethoxyphenyl)tetrahydropyran
CAS 143317-76-4C21H26O5
Terresterone B
CAS 855775-77-8C21H26O5
2-(12-Hydroxy-5,10-dodecadiyn-1-yl)-5,6-dimethoxy-3-methyl-2,5-cyclohexadiene-1,4-dione
CAS 80809-95-6C21H26O5
Rosmaquinone B
CAS 864962-10-7C21H26O5
Dihydrokadsurenone
CAS 57625-35-1C21H26O5
Normammein
CAS 5085-54-1C21H26O5
21-Dehydrocortisone
CAS 16574-04-2C21H26O5
- Malabaricone E1942927-13-0C21H26O5
- 8-Geranyloxy-5,7-dimethoxycoumarin1228175-65-2C21H26O5
- Aristolignin110268-34-3C21H26O5
- Mammea B/BD98216-05-8C21H26O5
- Macfarlandin A102396-21-4C21H26O5
- Luteorosin128201-22-9C21H26O5
- Sphenanlignan866347-36-6C21H26O5
- Pitholide D200936-86-3C21H26O5
- 6,8-Dihydroxy-2,2,4,4-tetramethyl-9-(2-methylpropyl)-9H-xanthene-1,3-dione1453207-09-4C21H26O5
- Nectandrin A74683-15-1C21H26O5
- Brialmontin 2128585-09-1C21H26O5
- 3a,4,8,9a-Tetrahydro-9a-methyl-3-(1-oxohexyl)-6-(1-propen-1-yl)-2H-furo[3,2-g][2]benzopyran-2,9(3H)-dione3567-98-4C21H26O5
- 9beta,11beta-Epoxy-17,21-dihydroxypregna-1,4-diene-3,20-dione7091-05-6C21H26O5
- Kadsuralignan C913183-89-8C21H26O5
- 21-Dehydro prednisolone22420-16-2C21H26O5
- Budesonide impurity 477017-17-5C21H26O5
- (3R)-4-Acetyl-1,3-dihydro-1-oxo-5-[(1S)-1,3,3-trimethylcyclohexyl]isobenzofuran-3-ol acetate102396-22-5C21H26O5
- [(2-Hexyl-6-oxo-7,8,9,10-tetrahydro-6H-benzo[c]chromen-3-yl)oxy]acetic acid380210-28-6C21H26O5
- 16alpha,17,21-Trihydroxy-pregna-1,4,9(11)-triene-3,20-dione39672-76-9C21H26O5
- 2-Methoxy-5-(3',4',5'-trimethoxyphenyl)-6,7,8,9-tetrahydro-5H-benzocyclohepten-1-ol917591-55-0C21H26O5
- Ethyl 3-{4,8-dimethyl-7-[(3-methyl-2-butenyl)oxy]-2-oxo-2H-chromen-3-yl}propanoate708221-47-0C21H26O5
- 2-Oxo-2-(tricyclo[3.3.1.1~3,7~]decan-1-yl)ethyl 3,4-dimethoxybenzoate6577-12-4C21H26O5
- (1S,2S,10S,11S,13R,14R,15S,17S)-14-Hydroxy-2,13,15-trimethyl-5-oxo-18-oxapentacyclo[8.8.0.01,17.02,7.011,15]octadeca-3,6-diene-14-carboxylic acid159264-49-0C21H26O5
- alpha-D-Ribofuranoside, methyl 2-C-methyl-3,5-bis-O-(phenylmethyl)-885592-70-1C21H26O5
- Methyl 2,3-di-O-benzyl-6-deoxy-a-D-glucopyranoside56750-58-4C21H26O5
- (2,4-Dihydroxyphenyl)[2-hydroxy-4-(octyloxy)phenyl]methanone134769-23-6C21H26O5
- 3-[4-(2-Benzyloxyethoxy)phenyl]-2-ethoxypropionic acid methyl ester1003884-68-1C21H26O5
- Acetic acid--(3S,4S)-3,4-bis(benzyloxy)cyclopentan-1-ol (1/1)823792-27-4C21H26O5
- 11alpha,21-Dihydroxy-16alpha-16,17-epoxypregna-1,4-diene-3,20-dione111088-85-8C21H26O5
- (1R,5R,6R,7R,8S)-7-(3,4-Dimethoxyphenyl)-8-hydroxy-3-methoxy-6-methyl-5-(2-propen-1-yl)bicyclo[3.2.1]oct-3-en-2-one145553-01-1C21H26O5
- Tetrahydroxanthohumol96169-02-7C21H26O5
- 3-Ethoxy-3-[4-[(3-propan-2-yloxyphenyl)methoxy]phenyl]propanoic acid1202575-20-9C21H26O5
- 3-Ethoxy-4-[3-(3-phenoxypropoxy)propoxy]benzaldehyde656810-15-0C21H26O5
- 1,11-Bis(5-methylfuran-2-yl)undecane-3,6,9-trione62619-59-4C21H26O5
- 1-(3,4-Dimethoxyphenyl)-2-(2-methoxy-4-propylphenoxy)propan-1-one50393-95-8C21H26O5
- 1-(3,4-Dihydroxyphenyl)-7-(4-hydroxyphenyl)heptan-3-yl acetate1966137-44-9C21H26O5
- Bis[4-(1-ethoxyethoxy)phenyl]methanone210410-34-7C21H26O5
- 4-[2-(2-Hydroxy-4,4-dimethyl-6-oxo-1-cyclohexen-1-yl)-2-oxoethyl]benzoic acid 1,1-dimethylethyl ester2204247-79-8C21H26O5
- Methyl 6-deoxy-2,4-bis-O-(phenylmethyl)-|A-D-mannopyranoside112612-46-1C21H26O5
- 2-Ethoxy-4,5-bis(phenylmethoxymethyl)-1,3-dioxolane162434-98-2C21H26O5
- (4S,5S)-4,5-Bis((benzyloxy)methyl)-2-ethoxy-1,3-dioxolaneC21H26O5
- (1S,2S,4R,6S,7S,9S,10S,11R)-9-Hydroxy-6-(2-hydroxyacetyl)-7,11-dimethyl-5-oxapentacyclo[8.8.0.02,7.04,6.011,16]octadeca-12,15-dien-14-one111186-92-6C21H26O5
- (10S,11S,13S,17R)-11,17-Dihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-7,11,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthren-3-one5492-28-4C21H26O5
- 5-[5-(2,5-Dihydroxyphenyl)furan-3-yl]-2,8-dimethylnon-7-enoic acid85022-65-7C21H26O5
- (8S,9S,10R,11R,13S,14S,17R)-11,17-Dihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-9,11,12,14,15,16-hexahydro-8H-cyclopenta[a]phenanthren-3-one111186-94-8C21H26O5
Frequently asked questions
What is the molar mass of C21H26O5?
The molar mass of C21H26O5 is 358.43 g/mol, calculated from standard atomic weights for 21 carbon atoms, 26 hydrogen atoms and 5 oxygen atoms. The monoisotopic mass is 358.1780 Da.
How many compounds have the formula C21H26O5?
CompoundList lists 69 compounds with the molecular formula C21H26O5, including Prednisone, Monascin, Malabaricone C. 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 C21H26O5?
C21H26O5 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.