C21H18O7
50 compounds have this formula on CompoundList.
- Molar mass
- 382.37g/mol
- Monoisotopic mass
- 382.1053Da
- Atoms
- 46
- Elements
- 3
- Rings plus double bonds
- 13
The formula C21H18O7 describes a molecule made of 21 carbon atoms, 18 hydrogen atoms and 7 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 × 2165.97%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 184.75%1.008 × 18 = 18.144 g/mol
- O Oxygen × 729.29%15.999 × 7 = 111.993 g/mol
Compounds with the formula C21H18O7
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 50 of 50 compounds
![Methyl {[3-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-methyl-4-oxo-4H-chromen-7-yl]oxy}acetate chemical structure, C21H18O7, CAS 227094-55-5](/s/FMPFKVCYVZZYCO-UHFFFAOYSA-N.svg)
![Methyl 2-{[3-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-oxo-4H-chromen-7-yl]oxy}propanoate chemical structure, C21H18O7, CAS 227094-78-2](/s/SRMAWBNJPJCWAY-UHFFFAOYSA-N.svg)
![[5-Acetyloxy-3-(4-methoxyphenyl)-2-methyl-4-oxochromen-7-yl] acetate chemical structure, C21H18O7, CAS 32131-65-0](/s/FAQUMLARZPTSOF-UHFFFAOYSA-N.svg)
![4-(2,3,4-Trimethoxyphenyl)-3,4-dihydropyrano[3,2-c]chromene-2,5-dione chemical structure, C21H18O7, CAS 697243-86-0](/s/DYJMLFWVMBWELI-UHFFFAOYSA-N.svg)
- Artoindonesianin T502718-06-1C21H18O7
- Sarothranol149415-60-1C21H18O7
- Lisetin6502-79-0C21H18O7
- Rikuzenol643045-04-9C21H18O7
- 11H-Dibenzo(b,E)(1,4)dioxepin-4-carboxaldehyde, 3,7-dihydroxy-1,9-dimethyl-8-(3-methyl-1-oxo-2-buten-1-yl)-11-oxo-1179374-63-0C21H18O7
- O-Methylaversin16049-51-7C21H18O7
- 3,5,7-Trihydroxy-8-methoxyflavone 3-angelate122585-70-0C21H18O7
- Piscidanone140447-85-4C21H18O7
- 5,7,8-Trihydroxy-3-methoxyflavone 8-((E)-2-methylbut-2-enoate)221231-14-7C21H18O7
- 2',3'-Epoxyindicolactone312619-44-6C21H18O7
- (Z)-Methyl 2-((2-(benzo[d][1,3]dioxol-5-ylmethylene)-7-methyl-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)propanoate859131-16-1C21H18O7
- (Z)-Methyl 4-((6-((1-methoxy-1-oxopropan-2-yl)oxy)-3-oxobenzofuran-2(3H)-ylidene)methyl)benzoate858764-03-1C21H18O7
- (Z)-Isopropyl 2-((2-(benzo[d][1,3]dioxol-5-ylmethylene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)acetate859662-83-2C21H18O7
- (Z)-Ethyl 2-((2-(benzo[d][1,3]dioxol-5-ylmethylene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)propanoate929456-15-5C21H18O7
- 4-({[3-(2-Carboxyethyl)-4-methyl-2-oxo-2H-chromen-7-yl]oxy}methyl)benzoic acid708243-53-2C21H18O7
- (4-Benzoyloxy-6-methoxy-5-oxo-2H-pyran-2-yl)methyl benzoate52152-86-0C21H18O7
- 4-({[3-(Carboxymethyl)-4,8-dimethyl-2-oxo-2H-chromen-7-yl]oxy}methyl)benzoic acid858749-41-4C21H18O7
- {[3-(Carboxymethyl)-4,8-dimethyl-2-oxo-2H-chromen-7-yl]oxy}(phenyl)acetic acid858758-36-8C21H18O7
- 6H-[1,3]Dioxolo[5,6]benzofuro[3,2-c]furo[3,2-g][1]benzopyran-2-ethanol, 1,2,6a,12a-tetrahydro-6a-hydroxy-beta-methylene-111010-27-6C21H18O7
- 8-Hydroxygalangin 3-methyl ether 8-angelate128508-15-6C21H18O7
- Acetic acid, ((4,7-dimethoxy-5-(3-phenyl-1-oxo-2-propenyl)-6-benzofuranyl)oxy)-51594-79-7C21H18O7
- Velloquercetin 4'-methyl ether139955-64-9C21H18O7
- 9H-Xanthen-9-one, 3-(acetyloxy)-4-(4,5-dihydro-3-furanyl)-1,8-dimethoxy-31490-97-8C21H18O7
- 4-(2,4,5-Trimethoxyphenyl)-3,4-dihydropyrano[3,2-c]chromene-2,5-dione697243-87-1C21H18O7
- 2-(3-Phenylacryloyl)benzene-1,3,5-triyl triacetate88503-16-6C21H18O7
- 4-{3-[4-(Acetyloxy)phenyl]acryloyl}-1,3-phenylene diacetate13745-21-6C21H18O7
Frequently asked questions
What is the molar mass of C21H18O7?
The molar mass of C21H18O7 is 382.37 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms and 7 oxygen atoms. The monoisotopic mass is 382.1053 Da.
How many compounds have the formula C21H18O7?
CompoundList lists 50 compounds with the molecular formula C21H18O7, including Zeylenone, Mitorubrin, (5R,5aR,8aR)-5,8,8a,9-Tetrahydro-5-(7-methoxy-1,3-benzodioxol-5-yl)furo(3',4':6,7)naphtho(2,3-d)-1,3-dioxol-6(5aH)-one. 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 C21H18O7?
C21H18O7 has a degree of unsaturation of 13. 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.