C21H42O2
67 compounds have this formula on CompoundList.
- Molar mass
- 326.56g/mol
- Monoisotopic mass
- 365.5633Da
- Atoms
- 65
- Elements
- 3
- Rings plus double bonds
- 1
The formula C21H42O2 describes a molecule made of 21 carbon atoms, 42 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 × 2177.24%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 4212.96%1.008 × 42 = 42.336 g/mol
- O Oxygen × 29.80%15.999 × 2 = 31.998 g/mol
Compounds with the formula C21H42O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 67 of 67 compounds
![Oxirane, 2-[(octadecyloxy)methyl]- chemical structure, C21H42O2, CAS 16245-97-9](/s/ZXJBWUAALADCRI-UHFFFAOYSA-N.svg)
- 1-Heptadecanol, butanoate84869-41-0C21H42O2
- 2,3,7,11,15-Pentamethylhexadecanoic acid122706-68-7C21H42O2
- Methylarachidic acid, (18S)-340257-50-3C21H42O2
- Nonadecyl acetate1577-43-1C21H42O2
- Methylarachidic acid, (18R)-340257-49-0C21H42O2
- 10,14-Dimethylpentadecyl isobutyrate158442-03-6C21H42O2
- 4-Isopropyl-2-pentadecyl-1,3-dioxolane56599-35-0C21H42O2
- Ethyl 10-methyloctadecanoate158648-65-8C21H42O2
- 2-Methylbutyl palmitate94022-82-9C21H42O2
- Hexadecyl 2,2-dimethylpropanoate32767-89-8C21H42O2
- 4,5-Dimethyl-2-pentadecyl-1,3-dioxane56599-32-7C21H42O2
- 5-Methyl-2-pentadecyl-1,3-dioxepane56599-34-9C21H42O2
- (10R)-10,14-Dimethylpentadecyl isobutyrate164260-03-1C21H42O2
- 8-Hexadecene, 1,1-diethoxy-14-methyl-, (8Z)-71566-69-3C21H42O2
- 1-Methylbutyl hexadecanoate55195-08-9C21H42O2
- Butyl heptadecanoate42232-36-0C21H42O2
- Icosyl formate66326-15-6C21H42O2
- (±)-18-Methyl-d3-eicosanoic Acid2708278-14-0C21H42O2
- Nonadecanoic acid, 11-methyl-, methyl ester55334-33-3C21H42O2
- 10-Methylnonadecanoic acid methyl ester55334-32-2C21H42O2
- 4,6-Dimethyl-2-pentadecyl-1,3-dioxane56599-77-0C21H42O2
- 4-Ethyl-4-methyl-2-pentadecyl-1,3-dioxolane56599-78-1C21H42O2
- 1-((3,7-Dimethyl-6-octenyl)oxy)-1-methoxydecane93894-28-1C21H42O2
- 3-[(Z)-Octadec-9-enoxy]propan-1-ol52581-71-2C21H42O2
- 2H-Pyran, 2-(hexadecyloxy)tetrahydro-58587-19-2C21H42O2
- 4,8,12-Trimethyloctadecanoic acid114161-36-3C21H42O2
- (10S)-10,14-Dimethylpentadecyl 2-methylpropanoate164260-04-2C21H42O2
- Isotridecyl 2-ethylhexanoate84962-29-8C21H42O2
- Dodecyl isononanoate84878-32-0C21H42O2
- Octadecanoic acid, 9-methyl-, ethyl ester55334-34-4C21H42O2
- 4,4,5-Trimethyl-2-pentadecyl-1,3-dioxolane56599-79-2C21H42O2
- 3-Nonyldodecanoic acid145066-77-9C21H42O2
- Ethyl 3-octylundecanoate260055-91-2C21H42O2
- PPG-10 Oleyl ether17367-37-2C21H42O2
- Agn-PC-0jsrv972347-46-7C21H42O2
- 18,18-Dimethylnonadecanoic acid62746-98-9C21H42O2
- Methyl eicosanoate-d3939756-40-6C21H42O2
- 2,4-Dimethylnonadecanoic acid93245-81-9C21H42O2
- Ethyl 4-methyloctadecanoate63060-51-5C21H42O2
- Methyl 3-methylnonadecanoate60787-55-5C21H42O2
- Hexadecan-7-yl 2,2-dimethylpropanoate846054-55-5C21H42O2
- (S)-1-((2S,3R)-3-Hexyloxiran-2-yl)tridecan-2-ol1620408-80-1C21H42O2
- 3-[(E)-Octadec-9-enoxy]propan-1-olC21H42O2
Frequently asked questions
What is the molar mass of C21H42O2?
The molar mass of C21H42O2 is 326.56 g/mol, calculated from standard atomic weights for 21 carbon atoms, 42 hydrogen atoms and 2 oxygen atoms. The monoisotopic mass is 365.5633 Da.
How many compounds have the formula C21H42O2?
CompoundList lists 67 compounds with the molecular formula C21H42O2, including Heneicosanoic acid, Methyl arachidate, 18-Methyleicosanoic acid. 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 C21H42O2?
C21H42O2 has a degree of unsaturation of 1. 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.