Molecular formula

C₁₈H₂₁N₃O₇

18 compounds have this formula on CompoundList.

Molar mass: 391.38g/mol
Monoisotopic mass: 391.1379Da
Atoms: 49
Elements: 4
Rings plus double bonds: 10

The formula C18H21N3O7 describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen 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 × 1855.24%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 215.41%
1.008 × 21 = 21.168 g/mol
N Nitrogen × 310.74%
14.007 × 3 = 42.021 g/mol
O Oxygen × 728.61%
15.999 × 7 = 111.993 g/mol

Look up another formula

Compounds with the formula C18H21N3O7

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

Showing 1 to 18 of 18 compounds

Diethyl 2-acetamido-2-[(5-nitro-1H-indol-3-yl)methyl]propanedioate

CAS 6958-33-4C₁₈H₂₁N₃O₇

Diethyl 2-acetamido-2-((6-nitro-1H-indol-3-yl)methyl)malonate

CAS 7355-90-0C₁₈H₂₁N₃O₇

Bicordin

CAS 22164-96-1C₁₈H₂₁N₃O₇

8-Methoxy-N-(3-morpholin-4-ylpropyl)-6-nitro-2-oxochromene-3-carboxamide

CAS 693239-66-6C₁₈H₂₁N₃O₇

5-Deazaflavin 4,5-epoxide

CAS 86889-50-1C₁₈H₂₁N₃O₇

Butyl 1,6-dimethyl-4-(6-nitro-1,3-benzodioxol-5-yl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate

CAS 303136-85-8C₁₈H₂₁N₃O₇

N-Benzyl-1-((2R,3R,4R,5R)-4-hydroxy-5-(hydroxymethyl)-3-methoxytetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide

CAS 1648558-95-5C₁₈H₂₁N₃O₇

1,3-Diethyl 2-(acetylamino)-2-[(4-nitro-1H-indol-3-yl)methyl]propanedioate

CAS 3227-19-8C₁₈H₂₁N₃O₇

Diethyl(acetylamino)[(7-nitro-1H-indol-3-yl)methyl]propanedioate

CAS 1654-32-6C₁₈H₂₁N₃O₇

3,4,5-Triethoxy-N'-[(5-nitrofuran-2-yl)methylidene]benzohydrazide

CAS 380337-00-8C₁₈H₂₁N₃O₇

Hexyl 5-(acetylamino)-4-(((5-nitro-2-furanyl)methylene)amino)-2-furancarboxylate

CAS 31136-67-1C₁₈H₂₁N₃O₇

2,4,6-Trinitrophenol--hexamethylbenzene (1/1)

CAS 30910-44-2C₁₈H₂₁N₃O₇

1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl (2R)-2-{[(tert-butoxy)carbonyl]amino}-4-carbamoylbutanoate

CAS 2248182-74-1C₁₈H₂₁N₃O₇

1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl (2S)-2-{[(tert-butoxy)carbonyl]amino}-4-carbamoylbutanoate

CAS 2248201-82-1C₁₈H₂₁N₃O₇

Thymidine,4-O-[2-(4-nitrophenyl)ethyl]-

CAS 87875-15-8C₁₈H₂₁N₃O₇

3,4-Dihydroxybutyl N-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]carbamate

CAS 2455488-85-2C₁₈H₂₁N₃O₇

A-D-Allofuranuronic acid, 1,5-dideoxy-1-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-5-[methyl(phenylmethyl)amino]-

CAS 93842-00-3C₁₈H₂₁N₃O₇

7-Methyl-3-(2,3,5-tri-O-acetyl-|A-D-ribofuranosyl)-3H-imidazo[4,5-b]pyridine

CAS 1193381-34-8C₁₈H₂₁N₃O₇

Frequently asked questions

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What is the molar mass of C18H21N3O7?

The molar mass of C18H21N3O7 is 391.38 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 7 oxygen atoms. The monoisotopic mass is 391.1379 Da.

How many compounds have the formula C18H21N3O7?

CompoundList lists 18 compounds with the molecular formula C18H21N3O7, including Diethyl 2-acetamido-2-[(5-nitro-1H-indol-3-yl)methyl]propanedioate, Diethyl 2-acetamido-2-((6-nitro-1H-indol-3-yl)methyl)malonate, Bicordin. 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 C18H21N3O7?

C18H21N3O7 has a degree of unsaturation of 10. 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.