01 of 40 Fenestrane This is the chemical structure of fenestrane. Todd Helmenstine Browse structures of molecules and ions that have names beginning with the letter F. The molecular formula for fenestrane, also known as broken windowpane, is C 8 H 12 .

02 of 40 Flavonol Chemical Structure This is the chemical structure of flavonol. Todd Helmenstine This is the chemical structure of flavonol. Molecular Formula: C 15 H 10 O 3 Molecular Mass: 238.24 Daltons Systematic Name: 3-Hydroxy-2-phenyl-4H-chromen-4-one Other Names: 3-Hydroxyflavone, flavon-3-ol

03 of 40 Flavone Chemical Structure This is the chemical structure of flavone. Todd Helmenstine The molecular formula for flavone is C 15 H 10 O 2 .

04 of 40 Flunitrazepam or Rohypnol Flunitrazepam is a benzodiazepine derivative marketed by Roche under the trade name Rohypnol. It is sometimes known as the date rape drug or by the street name of roofies. Ben Mills

05 of 40 Vitamin M (Folic Acid) Vitamin M (Folic Acid). Todd Helmenstine

06 of 40 Formaldehyde Formaldehyde (IUPAC name methanal) is a chemical compound that is the simplest aldehyde. Ben Mills The formula of formaldehyde is H 2 CO.

07 of 40 Formic Acid This is the chemical structure of formic acid. Todd Helmenstine The molecular formula for formic acid is CH 2 O 2 . Molecular Mass: 46.03 Daltons Systematic Name: Formic acid Other Names: HCOOH, Methanoic acid

08 of 40 Formosanan Chemical Structure This is the chemical structure of formosanan. Todd Helmenstine The molecular formula for formosanan is C 18 H 22 N 2 O.

09 of 40 Fructose The sugar fructose is also known as levulose or (2R,3S,4R,5R)-2,5-bis(hydroxymethyl)oxolane-2,3,4-triol. It is the sweetest naturally-occurring sugar, approximately twice as sweet as table sugar (sucrose). NEUROtiker, wikipedia commons

10 of 40 Fumarate (2-) Anion Chemical Structure This is the chemical structure of the fumarate (2-) anion. Todd Helmenstine The molecular formula for fumarate (2-) is C 4 H 2 O 4 .

11 of 40 Furan Chemical Structure This is the chemical structure of furan. Todd Helmenstine The molecular formula for furan is C 4 H 4 O.

12 of 40 Fucitol Fucitol is a sugar (fucose) alcohol that derives its name from a North Atlantic seaweed named Fucus vesiculosus. Fucose kinase is abbreviated as fuc-K. There are proteins from the E. coli K-12 gene named Fuc-U and Fuc-R. Cacycle, Wikipedia Commons The molecular formula of fucitol is C 6 H 14 O 5 .

13 of 40 Flavonol - 3-Hydroxyflavone This is the chemical structure of flavonol. Todd Helmenstine The molecular formula for flavonol is C 15 H 10 O 3 .

14 of 40 Flunitrazepam - Rohypnol This is the chemical structure of flunitrazepam. Todd Helmenstine The molecular formula for flunitrazepam is C 16 H 12 FN 3 O 3 .

15 of 40 Farnesol This is the chemical structure of farnesol. Todd Helmenstine The molecular formula for farnesol is C 15 H 26 O. Molecular Mass: 222.37 Daltons Systematic Name: 3,7,11-Trimethyl-2,6,10-dodecatrien-1-ol Other Names: FCI 119a, farnesyl alcohol, Galactan, Stirrup-H Crossed Lines in Skeletal Structures - What Do They Mean?

16 of 40 Ferrocene This is the chemical structure of ferrocene. Benjah-bmm/Ben Mills (PD) The molecular formula for Ferrocene is The molecular formula for ferrocene is C 10 H 10 Fe.

17 of 40 Fipronil This is the chemical structure of fipronil. Todd Helmenstine The molecular formula for fipronil is C 12 H 4 Cl 2 F 6 N 4 OS.

18 of 40 Flunixin This is the chemical structure of flunixin. Yikrazuul/PD The molecular formula for flunixin is C 14 H 11 F 3 N 2 O 2 .

19 of 40 Fluoranthene This is the chemical structure of fluoranthene. Inductiveload/PD The molecular formula for fluoranthene is C 16 H 10 .

20 of 40 Fluorene Chemical Structure This is the chemical structure of fluorene. Todd Helmenstine The molecular formula for fluorene is C 13 H 10 .

21 of 40 Fluorenone Chemical Structure This is the chemical structure of fluorenone. Edgar181/PD The molecular formula for fluorenone is C 13 H 8 O.

22 of 40 Fluorescein Chemical Structure This is the chemical structure of fluorescein. Charlesy/PD The molecular formula for fluorescein is C 20 H 12 O 5 .

23 of 40 Fluorobenzene Chemical Structure This is the chemical structure of fluorobenzene. Benjah-bmm27/PD The molecular formula for fluorobenzene is C 6 H 5 F.

24 of 40 Fluoroethylene Chemical Structure This is the chemical structure of fluoroethylene, or vinyl fluoride. Todd Helmenstine The molecular formula for vinyl fluoride is C 2 H 3 F.

25 of 40 Fluoxetine - Prozac Chemical Structure This is the chemical structure of fluoxetine. Harbin/PD The molecular formula for fluoxetine, also known as Prozac is C 17 H 18 F 3 NO.

26 of 40 Fonofos Chemical Structure This is the chemical structure of fonofos. Todd Helmenstine The molecular formula for fonofos is C 10 H 15 OPS 2 .

27 of 40 Formaldehyde Chemical Structure This is the chemical structure of formaldehyde. Wereon/PD The molecular formula for formaldehyde is CH 2 O.

28 of 40 Formamide Chemical Structure This is the chemical structure of formamide. Benjah-bmm27/PD The molecular formula for formamide is CH 3 NO.

29 of 40 Formanilide Chemical Structure This is the chemical structure of formanilide. Todd Helmenstine The molecular formula for formanilide is C 7 H 7 NO.

30 of 40 Formoterol Chemical Structure This is the chemical structure of formoterol. Jurgen Martens/PD The molecular formula for formoterol is C 19 H 24 N 2 O 4 .

31 of 40 Fumarate (1-) Anion Chemical Structure This is the chemical structure of the fumarate (1-) anion. Todd Helmenstine The molecular formula for the fumarate (1-) anion is C 4 H 3 O 4 .

32 of 40 Fumaric Acid Chemical Structure This is the chemical structure of fumaric acid. Ben Mills/PD The molecular formula for fumaric acid is C 4 H 4 O 4 .

33 of 40 Furfural Chemical Structure This is the chemical structure of furfural. Rosirinagazo/PD The molecular formula for furfural is C 5 H 4 O 2 .

34 of 40 Furfuryl Alcohol Chemical Structure This is the chemical structure of furfuryl alcohol. Kauczuk/PD The molecular formula for furfuryl alcohol is C 5 H 6 O 2 .

35 of 40 Furfurylamine Chemical Structure This is the chemical structure of furfurylamine. Ronhjones/PD The molecular formula for furfurylamine is C 5 H 7 NO.

36 of 40 Furylfuramide Chemical Structure This is the chemical structure of furylfuramide. Edgar181/PD The molecular formula for furylfuramide is C 11 H 8 N 2 O 5 .

37 of 40 Fexofenadine Chemical Structure This is the chemical structure of fexofenadine. Todd Helmenstine The molecular formula for fexofenadine is C 32 H 39 NO 4 .

38 of 40 Ball and Stick Ferrocene Molecule Sandwich Molecule This is a ball and stick representation of the ferrocene molecule. Todd Helmenstine The molecular formula of ferrocene is Fe(η5-(C 5 H 5 ) 2 ).

39 of 40 Fluoroantimonic Acid Strongest Super Acid This is the two-dimensional chemical structure of fluoroantimonic acid, the strongest superacid. YOSF0113, public domain The chemical formula for fluorantimonic acid is HSbF 6 . The acid is formed by mixing hydrogen fluoride and antimony pentafluoride. Fluoroantimonic acid reacts with nearly all solvents and even dissolves glass. It reacts quickly and explosively with water and disastrously with human tissue.