Molecular formula
C21H26O2
95 compounds have this formula on CompoundList.
- Molar mass
- 310.44g/mol
- Monoisotopic mass
- 316.2309Da
- Atoms
- 49
- Elements
- 3
- Rings plus double bonds
- 9
The formula C21H26O2 describes a molecule made of 21 carbon atoms, 26 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 × 2181.25%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 268.44%1.008 × 26 = 26.208 g/mol
- O Oxygen × 210.31%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C21H26O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 95 of 95 compounds
Mestranol
CAS 72-33-3C21H26O2
Altrenogest
CAS 850-52-2C21H26O2
Gestodene
CAS 60282-87-3C21H26O2
Cannabinol
CAS 521-35-7C21H26O2
AC 55649
CAS 59662-49-6C21H26O2
Plomestane
CAS 77016-85-4C21H26O2
4,4'-(3,3,5-Trimethylcyclohexylidene)bis(phenol)
CAS 129188-99-4C21H26O2
Benzoic acid, 4-propyl-, 4-pentylphenyl ester
CAS 50649-60-0C21H26O2
delta6-Levonorgestrel
CAS 51087-61-7C21H26O2
(4-Octyloxy-phenyl)-phenyl-methanone
CAS 35820-92-9C21H26O2
(8S,9S,10R,13S,14S,17R)-17-Ethynyl-17-hydroxy-13-methyl-11-methylidene-2,6,7,8,9,10,12,14,15,16-decahydro-1H-cyclopenta(a)phenanthren-3-one
CAS 54024-10-1C21H26O2
5,8,11,14-Heneicosatetraynoic acid
CAS 19960-58-8C21H26O2
Inostral
CAS 4502-08-3C21H26O2
1,2-Diethyl-1,3-bis(4-methoxyphenyl)-1-propene
CAS 74886-24-1C21H26O2
2-Methyl-ethinylestradiol
CAS 3240-39-9C21H26O2
Gestodene-d6
CAS 1542211-40-4C21H26O2
Oxolven
CAS 27806-42-4C21H26O2
17-Keto drospirenone
CAS 116298-21-6C21H26O2
1-Methyl-ethinylestradiol
CAS 15071-66-6C21H26O2
9beta,10alpha-Pregna-4,6,8(14)-triene-3,20-dione
CAS 23035-53-2C21H26O2
Cannabinodiol
CAS 39624-81-2C21H26O2
4-Methyl-ethinylestradiol
CAS 155683-61-7C21H26O2
Cannabifuran
CAS 56154-58-6C21H26O2
2-Isopropyl-5-methylphenyl 4-tert-butylbenzoate
CAS 666817-63-6C21H26O2
- Methylbutylphenyl propylbenzoate, (2S)-94442-17-8C21H26O2
- Levonorgestrel EP impurity A1260525-53-8C21H26O2
- [4-(1,1-Dimethylethyl)cyclohexyl](1-hydroxy-2-naphthalenyl)methanone1173097-25-0C21H26O2
- Longithorone C190913-23-6C21H26O2
- 4'-Heptyl-2-methyl[1,1'-biphenyl]-4-carboxylic acid920270-34-4C21H26O2
- 1,3-Benzodioxole, 4,7-bis(1,1-dimethylethyl)-2-phenyl-51786-62-0C21H26O2
- (3,5-Di-tert-butyl-4-hydroxyphenyl)(phenyl)methanone7175-89-5C21H26O2
- 1 suppliers18-Methylethinylestradiol14012-72-7C21H26O2
- Benzoic acid, 4-propyl-, 4-(2-methylbutyl)phenyl ester100545-66-2C21H26O2
- Prionitin117469-56-4C21H26O2
- (6-(Spiro[4.5]decan-8-yloxy)naphthalen-2-yl)methanol1266120-80-2C21H26O2
- 1 suppliers8(14)-Dehydro norgestrel110785-09-6C21H26O2
- 2-(2-(Benzyloxy)-5-(tert-butyl)phenyl)-2-methylpropanal1246213-28-4C21H26O2
- 11-beta-Methyl-17-alpha-ethinylestradiol13655-95-3C21H26O2
- (8S,9S,13S,14S,17R)-17-Ethynyl-4,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-1,17-diol1034298-00-4C21H26O2
- Pregna-1,4,6-triene-3,20-dione4192-93-2C21H26O2
- Menaquinol859453-01-3C21H26O2
- 5,8,11,14-Eicosatetraynoic acid, methyl ester102471-97-6C21H26O2
- 13beta-Propyl-3-methoxygona-1,3,5(10),8-tetraen-17-one2627-90-9C21H26O2
- 1-(4-Benzyloxy-phenyl)-4,4-dimethylcyclohexanol1058158-93-2C21H26O2
- 4-Methyl-19-nor-17alpha-pregna-1,3,5(10)-trien-20-yne-11beta,17-diol17753-11-6C21H26O2
- 4-tert-Butyl-2-(1-phenylethyl)phenyl propanoate6316-31-0C21H26O2
- 2,5-Dimethylphenyl 2-(4-isobutylphenyl)propanoate666817-77-2C21H26O2
- Pregna-4,9(11),16-triene-3,20-dione21590-20-5C21H26O2
- 3-(2-Propen-1-yloxy)estra-1,3,5(10)-trien-17-one1624-67-5C21H26O2
- 2-Hydroxy-4-n-octylbenzophenone7350-09-6C21H26O2
- (3,5-Di-tert-butyl-2-hydroxyphenyl)(phenyl)methanone24242-58-8C21H26O2
- [1,1'-Biphenyl]-4-yl nonanoate60508-31-8C21H26O2
- Hydroxyprogesterone impurity 164265-83-2C21H26O2
- 4-Butylphenyl 4-butylbenzoate38454-43-2C21H26O2
- 2-{[(1r,4r)-4-tert-Butylcyclohexyl]methyl}naphthalene-1,4-dione1184761-65-6C21H26O2
- Henicosa-2,8,14,20-tetraynoic acid3884-84-2C21H26O2
- Phenol, 4,4'-cyclopentylidenebis[2,6-dimethyl-156749-76-7C21H26O2
- 4'-Heptyl-3-methyl[1,1'-biphenyl]-4-carboxylic acid920269-91-6C21H26O2
- 9,9-Bis(methoxymethyl)-2,3,6,7-tetramethyl-9H-fluorene182121-31-9C21H26O2
- 4-(8-Phenyloctyl)benzoic acid1334237-09-0C21H26O2
- 1-(4-Benzyloxy-phenyl)-3,3-dimethyl-cyclohexanol1058159-03-7C21H26O2
- 1-[4'-(Heptyloxy)[1,1'-biphenyl]-4-yl]ethan-1-one56117-26-1C21H26O2
- Cannabinol-D31435934-54-5C21H26O2
- (-)-Menthyl 2-naphthalenecarboxylate871878-16-9C21H26O2
- 4-(p-Methoxybenzyl)-3-(p-methoxyphenyl)-2-hexene74886-22-9C21H26O2
- (8R,9S,13S,14S,17S)-13-Methyl-3-(prop-2-YN-1-yloxy)-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[A]phenanthren-17-ol28151-61-3C21H26O2
- 4,4'-(Cyclohexylmethylene)bis(2-methylphenol)92459-52-4C21H26O2
- 6,6-Dibutyldibenzo[d,f][1,3]dioxepin14005-15-3C21H26O2
- Phenyl 4-octylbenzoate89202-49-3C21H26O2
- 2,2'-(2-Methylbut-1-ene-4,4-diyl)bis(4,6-dimethylphenol)736975-69-2C21H26O2
- Propyl 4'-pentyl[1,1'-biphenyl]-4-carboxylate61733-15-1C21H26O2
- 4-{1-[4-(4-Hydroxyphenyl)cyclohexyl]propyl}phenol500615-81-6C21H26O2
- (4-tert-Butylphenyl)[4-(2-methylpropoxy)phenyl]methanone1226290-36-3C21H26O2
- Bis(2,4,6-trimethylphenyl)methyl acetate55394-82-6C21H26O2
- 4-Ethylphenyl 4-hexylbenzoate135132-98-8C21H26O2
- 4-Methoxy-4'-hexoxy-trans-stilbene35135-44-5C21H26O2
- 2-[(4,4-Diphenylbutan-2-yl)oxy]oxane93632-67-8C21H26O2
- 1-(2',6'-Diisopropyl-2-methoxy-[1,1'-biphenyl]-4-yl)ethan-1-one1073643-30-7C21H26O2
- 4-[2-(4-Cyclohexylphenyl)propan-2-yl]benzene-1,2-diol138939-15-8C21H26O2
- [2-Hydroxy-4-(2,4,4-trimethylpentan-2-yl)phenyl](phenyl)methanone3133-06-0C21H26O2
- 2-([1,1'-Biphenyl]-4-yl)-5,5-dimethyl-4-(propan-2-yl)-1,3-dioxane61684-10-4C21H26O2
- 1,1'-[(4-Methylcyclohexane-1,1-diyl)bis(oxymethylene)]dibenzene88278-93-7C21H26O2
- 1,1'-[(3-Methylcyclohexane-1,1-diyl)bis(oxymethylene)]dibenzene88278-92-6C21H26O2
- 1,1'-[(2-Methylcyclohexane-1,1-diyl)bis(oxymethylene)]dibenzene88278-91-5C21H26O2
- (8S,13S,14S,17R)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one24881-79-6C21H26O2
- 17-Hydroxy-17-(1-propynyl)-estra-4,9-dien-3-one139113-48-7C21H26O2
- 2-(3,7-Dimethylocta-2,6-dien-1-yl)-3-methylnaphthalene-1,4-diolC21H26O2
- 17-Acetyl-10,13-dimethyl-6,7,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-3-one75863-26-2C21H26O2
- 1-(2',6'-Diisopropyl-5-methoxy-[1,1'-biphenyl]-3-yl)ethan-1-one1073642-83-7C21H26O2
- 4,4'-Bis(1,1-dimethylethyl)[1,1'-biphenyl]-2-carboxylic acid685108-67-2C21H26O2
- (1S)-3,4-Dihydro-1-phenyl-2(1H)-isoquinolinecarboxylic Acid 2,5-Dioxo-1-pyrrolidinyl Ester1534326-80-1C21H26O2
- (8S,13S,14S,17R)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,4,6,7,8,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one4412-59-3C21H26O2
- (8R,9S,10R,13S,14S)-17-Acetyl-10,13-dimethyl-1,2,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-3-one15346-23-3C21H26O2
- (13S,14S,17R)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,4,6,7,8,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-oneC21H26O2
- 1-Hydroxy-4-methyl-17-ethynyl-3-dehydroxyestradiolC21H26O2
Frequently asked questions
What is the molar mass of C21H26O2?
The molar mass of C21H26O2 is 310.44 g/mol, calculated from standard atomic weights for 21 carbon atoms, 26 hydrogen atoms and 2 oxygen atoms. The monoisotopic mass is 316.2309 Da.
How many compounds have the formula C21H26O2?
CompoundList lists 95 compounds with the molecular formula C21H26O2, including Mestranol, Altrenogest, Gestodene. 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 C21H26O2?
C21H26O2 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.