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Molecular formula

C21H12O7

7 compounds have this formula on CompoundList.

Molar mass
376.32g/mol
Monoisotopic mass
376.0583Da
Atoms
40
Elements
3
Rings plus double bonds
16

The formula C21H12O7 describes a molecule made of 21 carbon atoms, 12 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 × 2167.03%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 123.21%
    1.008 × 12 = 12.096 g/mol
  • O Oxygen × 729.76%
    15.999 × 7 = 111.993 g/mol
Look up another formula

Compounds with the formula C21H12O7

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 7 of 7 compounds

6-Carboxyfluorescein chemical structure, C21H12O7, CAS 3301-79-9
6-Carboxyfluorescein
CAS 3301-79-9C21H12O7
5-Fam chemical structure, C21H12O7, CAS 76823-03-5
5-Fam
CAS 76823-03-5C21H12O7
RefChem:381786 chemical structure, C21H12O7, CAS 76608-15-6
RefChem:381786
CAS 76608-15-6C21H12O7
3',6'-Dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-4-carboxylic acid chemical structure, C21H12O7, CAS 76808-34-9
3',6'-Dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-4-carboxylic acid
CAS 76808-34-9C21H12O7
4-(3-Hydroxy-6-oxoxanthen-9-yl)benzene-1,3-dicarboxylic acid chemical structure, C21H12O7, CAS 500533-95-9
4-(3-Hydroxy-6-oxoxanthen-9-yl)benzene-1,3-dicarboxylic acid
CAS 500533-95-9C21H12O7
(Z)-2-(Benzo[d][1,3]dioxol-5-ylmethylene)-3-oxo-2,3-dihydrobenzofuran-6-yl furan-2-carboxylate chemical structure, C21H12O7, CAS 896820-72-7
(Z)-2-(Benzo[d][1,3]dioxol-5-ylmethylene)-3-oxo-2,3-dihydrobenzofuran-6-yl furan-2-carboxylate
CAS 896820-72-7C21H12O7
(Z)-2-(Furan-2-ylmethylene)-3-oxo-2,3-dihydrobenzofuran-6-yl benzo[d][1,3]dioxole-5-carboxylate chemical structure, C21H12O7, CAS 622800-42-4
(Z)-2-(Furan-2-ylmethylene)-3-oxo-2,3-dihydrobenzofuran-6-yl benzo[d][1,3]dioxole-5-carboxylate
CAS 622800-42-4C21H12O7

Frequently asked questions

What is the molar mass of C21H12O7?

The molar mass of C21H12O7 is 376.32 g/mol, calculated from standard atomic weights for 21 carbon atoms, 12 hydrogen atoms and 7 oxygen atoms. The monoisotopic mass is 376.0583 Da.

How many compounds have the formula C21H12O7?

CompoundList lists 7 compounds with the molecular formula C21H12O7, including 6-Carboxyfluorescein, 5-Fam, RefChem:381786. 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 C21H12O7?

C21H12O7 has a degree of unsaturation of 16. 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.